./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-28.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_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/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_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/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_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/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 e3e490624669738192d84194857eb5010bb4c249ca7cd2d385528db4c6ad1bc5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:51:07,007 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:51:07,139 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 19:51:07,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:51:07,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:51:07,189 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:51:07,190 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:51:07,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:51:07,191 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:51:07,191 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:51:07,191 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:51:07,192 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:51:07,192 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:51:07,192 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:51:07,192 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:51:07,193 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:51:07,193 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:51:07,193 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:51:07,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:51:07,194 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:51:07,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:51:07,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:51:07,194 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:51:07,194 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:51:07,194 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:51:07,194 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:51:07,194 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:51:07,195 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:51:07,195 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:51:07,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:51:07,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:51:07,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:51:07,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:07,195 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:51:07,196 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:51:07,196 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:51:07,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:51:07,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:07,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:51:07,196 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:51:07,197 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:51:07,197 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:51:07,197 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:51:07,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:51:07,198 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:51:07,198 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:51:07,198 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:51:07,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:51:07,198 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_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/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 -> e3e490624669738192d84194857eb5010bb4c249ca7cd2d385528db4c6ad1bc5 [2024-11-27 19:51:07,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:51:07,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:51:07,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:51:07,650 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:51:07,651 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:51:07,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-28.i [2024-11-27 19:51:10,994 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/data/3a77b94b3/001c2b683c464e82b29e190d8894545f/FLAG495aae303 [2024-11-27 19:51:11,439 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:51:11,444 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-28.i [2024-11-27 19:51:11,467 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/data/3a77b94b3/001c2b683c464e82b29e190d8894545f/FLAG495aae303 [2024-11-27 19:51:11,487 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/data/3a77b94b3/001c2b683c464e82b29e190d8894545f [2024-11-27 19:51:11,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:51:11,492 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:51:11,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:51:11,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:51:11,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:51:11,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:11,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4687052e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11, skipping insertion in model container [2024-11-27 19:51:11,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:11,570 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:51:11,779 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_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-28.i[916,929] [2024-11-27 19:51:12,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:51:12,107 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:51:12,122 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_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-28.i[916,929] [2024-11-27 19:51:12,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:51:12,380 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:51:12,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12 WrapperNode [2024-11-27 19:51:12,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:51:12,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:51:12,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:51:12,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:51:12,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12" (1/1) ... [2024-11-27 19:51:12,423 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12" (1/1) ... [2024-11-27 19:51:12,552 INFO L138 Inliner]: procedures = 26, calls = 141, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 982 [2024-11-27 19:51:12,553 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:51:12,553 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:51:12,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:51:12,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:51:12,566 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12" (1/1) ... [2024-11-27 19:51:12,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12" (1/1) ... [2024-11-27 19:51:12,579 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12" (1/1) ... [2024-11-27 19:51:12,619 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 19:51:12,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12" (1/1) ... [2024-11-27 19:51:12,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12" (1/1) ... [2024-11-27 19:51:12,655 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12" (1/1) ... [2024-11-27 19:51:12,659 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12" (1/1) ... [2024-11-27 19:51:12,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12" (1/1) ... [2024-11-27 19:51:12,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12" (1/1) ... [2024-11-27 19:51:12,685 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12" (1/1) ... [2024-11-27 19:51:12,699 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:51:12,700 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:51:12,701 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:51:12,701 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:51:12,702 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12" (1/1) ... [2024-11-27 19:51:12,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:12,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:12,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:51:12,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:51:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:51:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 19:51:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 19:51:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:51:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:51:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:51:13,044 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:51:13,047 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:51:15,503 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2024-11-27 19:51:15,504 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:51:15,544 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:51:15,549 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 19:51:15,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:15 BoogieIcfgContainer [2024-11-27 19:51:15,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:51:15,557 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:51:15,557 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:51:15,570 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:51:15,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:51:11" (1/3) ... [2024-11-27 19:51:15,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa1489e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:15, skipping insertion in model container [2024-11-27 19:51:15,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:12" (2/3) ... [2024-11-27 19:51:15,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa1489e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:15, skipping insertion in model container [2024-11-27 19:51:15,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:15" (3/3) ... [2024-11-27 19:51:15,573 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-28.i [2024-11-27 19:51:15,602 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:51:15,606 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-28.i that has 2 procedures, 415 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 19:51:15,740 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:51:15,761 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;@381049e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:51:15,762 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:51:15,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 415 states, 284 states have (on average 1.5598591549295775) internal successors, (443), 285 states have internal predecessors, (443), 128 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-27 19:51:15,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2024-11-27 19:51:15,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:15,859 INFO L218 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:15,861 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:15,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:15,871 INFO L85 PathProgramCache]: Analyzing trace with hash -705466966, now seen corresponding path program 1 times [2024-11-27 19:51:15,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:15,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899633237] [2024-11-27 19:51:15,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:15,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:17,340 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 254 refuted. 0 times theorem prover too weak. 32258 trivial. 0 not checked. [2024-11-27 19:51:17,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:17,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899633237] [2024-11-27 19:51:17,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899633237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:17,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753588098] [2024-11-27 19:51:17,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:17,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:17,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:17,350 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:17,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:51:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:18,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 1787 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 19:51:18,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:18,373 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 32258 trivial. 0 not checked. [2024-11-27 19:51:18,375 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:18,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753588098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:18,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:51:18,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 19:51:18,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507886970] [2024-11-27 19:51:18,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:18,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 19:51:18,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:18,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 19:51:18,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:51:18,430 INFO L87 Difference]: Start difference. First operand has 415 states, 284 states have (on average 1.5598591549295775) internal successors, (443), 285 states have internal predecessors, (443), 128 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) Second operand has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 2 states have call successors, (128), 2 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 2 states have call successors, (128) [2024-11-27 19:51:18,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:18,600 INFO L93 Difference]: Finished difference Result 806 states and 1490 transitions. [2024-11-27 19:51:18,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 19:51:18,603 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 2 states have call successors, (128), 2 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 2 states have call successors, (128) Word has length 804 [2024-11-27 19:51:18,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:18,625 INFO L225 Difference]: With dead ends: 806 [2024-11-27 19:51:18,625 INFO L226 Difference]: Without dead ends: 394 [2024-11-27 19:51:18,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 805 GetRequests, 805 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 19:51:18,645 INFO L435 NwaCegarLoop]: 658 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, 658 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 19:51:18,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:18,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-27 19:51:18,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2024-11-27 19:51:18,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 264 states have (on average 1.5227272727272727) internal successors, (402), 264 states have internal predecessors, (402), 128 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-27 19:51:18,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 658 transitions. [2024-11-27 19:51:18,852 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 658 transitions. Word has length 804 [2024-11-27 19:51:18,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:18,853 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 658 transitions. [2024-11-27 19:51:18,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 2 states have call successors, (128), 2 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 2 states have call successors, (128) [2024-11-27 19:51:18,855 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 658 transitions. [2024-11-27 19:51:18,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2024-11-27 19:51:18,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:18,897 INFO L218 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:18,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:51:19,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4ac05b-ca3c-4126-872e-f9427af7f9ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 19:51:19,100 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:19,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:19,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1565357336, now seen corresponding path program 1 times [2024-11-27 19:51:19,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:19,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214260106] [2024-11-27 19:51:19,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:19,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:20,715 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2024-11-27 19:51:20,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:20,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214260106] [2024-11-27 19:51:20,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214260106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:20,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:20,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:20,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349642891] [2024-11-27 19:51:20,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:20,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:20,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:20,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:20,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:20,724 INFO L87 Difference]: Start difference. First operand 394 states and 658 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:20,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:20,947 INFO L93 Difference]: Finished difference Result 1176 states and 1968 transitions. [2024-11-27 19:51:20,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:20,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) Word has length 805 [2024-11-27 19:51:20,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:20,969 INFO L225 Difference]: With dead ends: 1176 [2024-11-27 19:51:20,971 INFO L226 Difference]: Without dead ends: 785 [2024-11-27 19:51:20,974 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 19:51:20,975 INFO L435 NwaCegarLoop]: 654 mSDtfsCounter, 642 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1300 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 19:51:20,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 1300 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:20,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2024-11-27 19:51:21,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 783. [2024-11-27 19:51:21,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 524 states have (on average 1.5229007633587786) internal successors, (798), 524 states have internal predecessors, (798), 256 states have call successors, (256), 2 states have call predecessors, (256), 2 states have return successors, (256), 256 states have call predecessors, (256), 256 states have call successors, (256) [2024-11-27 19:51:21,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1310 transitions. [2024-11-27 19:51:21,321 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1310 transitions. Word has length 805 [2024-11-27 19:51:21,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:21,325 INFO L471 AbstractCegarLoop]: Abstraction has 783 states and 1310 transitions. [2024-11-27 19:51:21,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:21,325 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1310 transitions. [2024-11-27 19:51:21,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2024-11-27 19:51:21,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:21,365 INFO L218 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:21,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:51:21,366 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:21,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:21,367 INFO L85 PathProgramCache]: Analyzing trace with hash -768035302, now seen corresponding path program 1 times [2024-11-27 19:51:21,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:21,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567079172] [2024-11-27 19:51:21,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:21,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:22,216 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2024-11-27 19:51:22,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:22,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567079172] [2024-11-27 19:51:22,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567079172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:22,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:22,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:22,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603259374] [2024-11-27 19:51:22,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:22,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:22,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:22,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:22,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:22,225 INFO L87 Difference]: Start difference. First operand 783 states and 1310 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:22,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:22,417 INFO L93 Difference]: Finished difference Result 2039 states and 3420 transitions. [2024-11-27 19:51:22,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:22,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) Word has length 805 [2024-11-27 19:51:22,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:22,441 INFO L225 Difference]: With dead ends: 2039 [2024-11-27 19:51:22,441 INFO L226 Difference]: Without dead ends: 1259 [2024-11-27 19:51:22,444 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 19:51:22,449 INFO L435 NwaCegarLoop]: 735 mSDtfsCounter, 388 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:22,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1376 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:51:22,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2024-11-27 19:51:22,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1255. [2024-11-27 19:51:22,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 912 states have (on average 1.5657894736842106) internal successors, (1428), 914 states have internal predecessors, (1428), 338 states have call successors, (338), 4 states have call predecessors, (338), 4 states have return successors, (338), 336 states have call predecessors, (338), 338 states have call successors, (338) [2024-11-27 19:51:22,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 2104 transitions. [2024-11-27 19:51:22,760 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 2104 transitions. Word has length 805 [2024-11-27 19:51:22,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:22,764 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 2104 transitions. [2024-11-27 19:51:22,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:22,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 2104 transitions. [2024-11-27 19:51:22,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2024-11-27 19:51:22,780 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:22,781 INFO L218 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:22,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:51:22,782 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:22,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:22,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1171126744, now seen corresponding path program 1 times [2024-11-27 19:51:22,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:22,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546497567] [2024-11-27 19:51:22,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:22,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:23,395 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2024-11-27 19:51:23,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:23,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546497567] [2024-11-27 19:51:23,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546497567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:23,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:23,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:23,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570584909] [2024-11-27 19:51:23,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:23,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:23,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:23,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:23,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:23,401 INFO L87 Difference]: Start difference. First operand 1255 states and 2104 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:23,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:23,679 INFO L93 Difference]: Finished difference Result 3755 states and 6298 transitions. [2024-11-27 19:51:23,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:23,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) Word has length 805 [2024-11-27 19:51:23,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:23,708 INFO L225 Difference]: With dead ends: 3755 [2024-11-27 19:51:23,709 INFO L226 Difference]: Without dead ends: 2503 [2024-11-27 19:51:23,715 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 19:51:23,717 INFO L435 NwaCegarLoop]: 1181 mSDtfsCounter, 633 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:23,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1829 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:23,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2024-11-27 19:51:24,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 1567. [2024-11-27 19:51:24,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1224 states have (on average 1.6143790849673203) internal successors, (1976), 1226 states have internal predecessors, (1976), 338 states have call successors, (338), 4 states have call predecessors, (338), 4 states have return successors, (338), 336 states have call predecessors, (338), 338 states have call successors, (338) [2024-11-27 19:51:24,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2652 transitions. [2024-11-27 19:51:24,122 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2652 transitions. Word has length 805 [2024-11-27 19:51:24,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:24,124 INFO L471 AbstractCegarLoop]: Abstraction has 1567 states and 2652 transitions. [2024-11-27 19:51:24,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:24,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2652 transitions. [2024-11-27 19:51:24,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2024-11-27 19:51:24,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:24,136 INFO L218 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:24,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:51:24,136 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:24,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:24,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1862923302, now seen corresponding path program 1 times [2024-11-27 19:51:24,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:24,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176794038] [2024-11-27 19:51:24,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:24,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:24,729 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2024-11-27 19:51:24,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:24,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176794038] [2024-11-27 19:51:24,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176794038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:24,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:24,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:24,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155670790] [2024-11-27 19:51:24,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:24,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:24,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:24,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:24,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:24,736 INFO L87 Difference]: Start difference. First operand 1567 states and 2652 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:25,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:25,008 INFO L93 Difference]: Finished difference Result 4067 states and 6834 transitions. [2024-11-27 19:51:25,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:25,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) Word has length 805 [2024-11-27 19:51:25,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:25,030 INFO L225 Difference]: With dead ends: 4067 [2024-11-27 19:51:25,030 INFO L226 Difference]: Without dead ends: 2503 [2024-11-27 19:51:25,036 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 19:51:25,037 INFO L435 NwaCegarLoop]: 720 mSDtfsCounter, 623 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:25,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1366 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:25,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2024-11-27 19:51:25,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 1567. [2024-11-27 19:51:25,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1224 states have (on average 1.607843137254902) internal successors, (1968), 1226 states have internal predecessors, (1968), 338 states have call successors, (338), 4 states have call predecessors, (338), 4 states have return successors, (338), 336 states have call predecessors, (338), 338 states have call successors, (338) [2024-11-27 19:51:25,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2644 transitions. [2024-11-27 19:51:25,420 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2644 transitions. Word has length 805 [2024-11-27 19:51:25,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:25,423 INFO L471 AbstractCegarLoop]: Abstraction has 1567 states and 2644 transitions. [2024-11-27 19:51:25,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:25,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2644 transitions. [2024-11-27 19:51:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2024-11-27 19:51:25,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:25,435 INFO L218 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:25,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 19:51:25,436 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:25,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:25,437 INFO L85 PathProgramCache]: Analyzing trace with hash 60304732, now seen corresponding path program 1 times [2024-11-27 19:51:25,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:25,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070510480] [2024-11-27 19:51:25,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:25,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2024-11-27 19:51:26,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:26,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070510480] [2024-11-27 19:51:26,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070510480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:26,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:26,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:26,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204436105] [2024-11-27 19:51:26,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:26,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:26,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:26,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:26,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:26,038 INFO L87 Difference]: Start difference. First operand 1567 states and 2644 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:26,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:26,376 INFO L93 Difference]: Finished difference Result 4357 states and 7340 transitions. [2024-11-27 19:51:26,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:26,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) Word has length 805 [2024-11-27 19:51:26,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:26,404 INFO L225 Difference]: With dead ends: 4357 [2024-11-27 19:51:26,404 INFO L226 Difference]: Without dead ends: 2793 [2024-11-27 19:51:26,412 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 19:51:26,414 INFO L435 NwaCegarLoop]: 863 mSDtfsCounter, 397 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:26,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 1506 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:26,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2024-11-27 19:51:26,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2789. [2024-11-27 19:51:26,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2789 states, 2200 states have (on average 1.6018181818181818) internal successors, (3524), 2206 states have internal predecessors, (3524), 580 states have call successors, (580), 8 states have call predecessors, (580), 8 states have return successors, (580), 574 states have call predecessors, (580), 580 states have call successors, (580) [2024-11-27 19:51:26,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 4684 transitions. [2024-11-27 19:51:26,845 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 4684 transitions. Word has length 805 [2024-11-27 19:51:26,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:26,848 INFO L471 AbstractCegarLoop]: Abstraction has 2789 states and 4684 transitions. [2024-11-27 19:51:26,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:26,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 4684 transitions. [2024-11-27 19:51:26,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2024-11-27 19:51:26,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:26,863 INFO L218 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:26,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:51:26,863 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:26,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:26,864 INFO L85 PathProgramCache]: Analyzing trace with hash -73708774, now seen corresponding path program 1 times [2024-11-27 19:51:26,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:26,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448359908] [2024-11-27 19:51:26,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:26,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:27,668 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2024-11-27 19:51:27,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:27,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448359908] [2024-11-27 19:51:27,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448359908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:27,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:27,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:27,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982725975] [2024-11-27 19:51:27,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:27,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:27,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:27,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:27,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:27,673 INFO L87 Difference]: Start difference. First operand 2789 states and 4684 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:27,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:27,886 INFO L93 Difference]: Finished difference Result 5591 states and 9397 transitions. [2024-11-27 19:51:27,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:27,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) Word has length 805 [2024-11-27 19:51:27,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:27,911 INFO L225 Difference]: With dead ends: 5591 [2024-11-27 19:51:27,911 INFO L226 Difference]: Without dead ends: 2805 [2024-11-27 19:51:27,921 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 19:51:27,923 INFO L435 NwaCegarLoop]: 657 mSDtfsCounter, 0 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1308 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 19:51:27,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1308 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:27,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2805 states. [2024-11-27 19:51:28,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2805 to 2805. [2024-11-27 19:51:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 2216 states have (on average 1.5974729241877257) internal successors, (3540), 2222 states have internal predecessors, (3540), 580 states have call successors, (580), 8 states have call predecessors, (580), 8 states have return successors, (580), 574 states have call predecessors, (580), 580 states have call successors, (580) [2024-11-27 19:51:28,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 4700 transitions. [2024-11-27 19:51:28,288 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 4700 transitions. Word has length 805 [2024-11-27 19:51:28,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:28,289 INFO L471 AbstractCegarLoop]: Abstraction has 2805 states and 4700 transitions. [2024-11-27 19:51:28,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:28,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 4700 transitions. [2024-11-27 19:51:28,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2024-11-27 19:51:28,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:28,304 INFO L218 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:28,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 19:51:28,304 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:28,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:28,305 INFO L85 PathProgramCache]: Analyzing trace with hash -971102052, now seen corresponding path program 1 times [2024-11-27 19:51:28,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:28,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281125199] [2024-11-27 19:51:28,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:28,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:29,159 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2024-11-27 19:51:29,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:29,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281125199] [2024-11-27 19:51:29,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281125199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:29,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:29,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:29,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234131253] [2024-11-27 19:51:29,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:29,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:29,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:29,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:29,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:29,163 INFO L87 Difference]: Start difference. First operand 2805 states and 4700 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:29,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:29,653 INFO L93 Difference]: Finished difference Result 8063 states and 13502 transitions. [2024-11-27 19:51:29,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:29,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) Word has length 805 [2024-11-27 19:51:29,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:29,692 INFO L225 Difference]: With dead ends: 8063 [2024-11-27 19:51:29,692 INFO L226 Difference]: Without dead ends: 5261 [2024-11-27 19:51:29,704 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 19:51:29,705 INFO L435 NwaCegarLoop]: 984 mSDtfsCounter, 407 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:29,705 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 1607 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:51:29,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2024-11-27 19:51:30,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5255. [2024-11-27 19:51:30,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 4198 states have (on average 1.5969509290138162) internal successors, (6704), 4212 states have internal predecessors, (6704), 1040 states have call successors, (1040), 16 states have call predecessors, (1040), 16 states have return successors, (1040), 1026 states have call predecessors, (1040), 1040 states have call successors, (1040) [2024-11-27 19:51:30,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 8784 transitions. [2024-11-27 19:51:30,365 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 8784 transitions. Word has length 805 [2024-11-27 19:51:30,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:30,367 INFO L471 AbstractCegarLoop]: Abstraction has 5255 states and 8784 transitions. [2024-11-27 19:51:30,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:30,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 8784 transitions. [2024-11-27 19:51:30,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2024-11-27 19:51:30,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:30,396 INFO L218 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:30,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 19:51:30,396 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:30,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:30,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1415407454, now seen corresponding path program 1 times [2024-11-27 19:51:30,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:30,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586314401] [2024-11-27 19:51:30,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:30,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:31,776 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2024-11-27 19:51:31,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:31,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586314401] [2024-11-27 19:51:31,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586314401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:31,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:31,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:31,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435954562] [2024-11-27 19:51:31,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:31,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:31,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:31,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:31,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:31,786 INFO L87 Difference]: Start difference. First operand 5255 states and 8784 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:32,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:32,734 INFO L93 Difference]: Finished difference Result 14519 states and 24202 transitions. [2024-11-27 19:51:32,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:32,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) Word has length 805 [2024-11-27 19:51:32,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:32,829 INFO L225 Difference]: With dead ends: 14519 [2024-11-27 19:51:32,829 INFO L226 Difference]: Without dead ends: 9267 [2024-11-27 19:51:32,850 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 19:51:32,852 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 416 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:32,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 1371 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:32,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9267 states. [2024-11-27 19:51:34,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9267 to 9265. [2024-11-27 19:51:34,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9265 states, 7152 states have (on average 1.569910514541387) internal successors, (11228), 7180 states have internal predecessors, (11228), 2080 states have call successors, (2080), 32 states have call predecessors, (2080), 32 states have return successors, (2080), 2052 states have call predecessors, (2080), 2080 states have call successors, (2080) [2024-11-27 19:51:34,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9265 states to 9265 states and 15388 transitions. [2024-11-27 19:51:34,188 INFO L78 Accepts]: Start accepts. Automaton has 9265 states and 15388 transitions. Word has length 805 [2024-11-27 19:51:34,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:34,190 INFO L471 AbstractCegarLoop]: Abstraction has 9265 states and 15388 transitions. [2024-11-27 19:51:34,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:34,191 INFO L276 IsEmpty]: Start isEmpty. Operand 9265 states and 15388 transitions. [2024-11-27 19:51:34,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2024-11-27 19:51:34,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:34,208 INFO L218 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:34,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 19:51:34,209 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:34,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:34,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1456082204, now seen corresponding path program 1 times [2024-11-27 19:51:34,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:34,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190727357] [2024-11-27 19:51:34,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:34,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:35,871 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2024-11-27 19:51:35,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:35,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190727357] [2024-11-27 19:51:35,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190727357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:35,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:35,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:51:35,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417704161] [2024-11-27 19:51:35,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:35,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:51:35,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:35,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:51:35,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:51:35,875 INFO L87 Difference]: Start difference. First operand 9265 states and 15388 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:40,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:40,528 INFO L93 Difference]: Finished difference Result 28759 states and 47535 transitions. [2024-11-27 19:51:40,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:51:40,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) Word has length 805 [2024-11-27 19:51:40,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:40,642 INFO L225 Difference]: With dead ends: 28759 [2024-11-27 19:51:40,643 INFO L226 Difference]: Without dead ends: 19497 [2024-11-27 19:51:40,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:51:40,683 INFO L435 NwaCegarLoop]: 947 mSDtfsCounter, 1266 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:40,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 1776 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 19:51:40,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19497 states. [2024-11-27 19:51:43,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19497 to 15401. [2024-11-27 19:51:43,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15401 states, 12284 states have (on average 1.587430804298274) internal successors, (19500), 12328 states have internal predecessors, (19500), 3060 states have call successors, (3060), 56 states have call predecessors, (3060), 56 states have return successors, (3060), 3016 states have call predecessors, (3060), 3060 states have call successors, (3060) [2024-11-27 19:51:43,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15401 states to 15401 states and 25620 transitions. [2024-11-27 19:51:43,357 INFO L78 Accepts]: Start accepts. Automaton has 15401 states and 25620 transitions. Word has length 805 [2024-11-27 19:51:43,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:43,359 INFO L471 AbstractCegarLoop]: Abstraction has 15401 states and 25620 transitions. [2024-11-27 19:51:43,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 1 states have call predecessors, (128), 1 states have call successors, (128) [2024-11-27 19:51:43,359 INFO L276 IsEmpty]: Start isEmpty. Operand 15401 states and 25620 transitions. [2024-11-27 19:51:43,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2024-11-27 19:51:43,383 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:43,383 INFO L218 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:43,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 19:51:43,384 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:43,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:43,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1899982878, now seen corresponding path program 1 times [2024-11-27 19:51:43,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:43,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190950826] [2024-11-27 19:51:43,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:43,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:53,462 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2024-11-27 19:51:53,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:53,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190950826] [2024-11-27 19:51:53,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190950826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:53,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:53,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 19:51:53,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934123248] [2024-11-27 19:51:53,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:53,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 19:51:53,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:53,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 19:51:53,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:51:53,466 INFO L87 Difference]: Start difference. First operand 15401 states and 25620 transitions. Second operand has 15 states, 15 states have (on average 11.2) internal successors, (168), 15 states have internal predecessors, (168), 3 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) [2024-11-27 19:52:18,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:18,341 INFO L93 Difference]: Finished difference Result 117885 states and 195074 transitions. [2024-11-27 19:52:18,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 19:52:18,342 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.2) internal successors, (168), 15 states have internal predecessors, (168), 3 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) Word has length 805 [2024-11-27 19:52:18,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:18,834 INFO L225 Difference]: With dead ends: 117885 [2024-11-27 19:52:18,834 INFO L226 Difference]: Without dead ends: 102487 [2024-11-27 19:52:18,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2024-11-27 19:52:18,914 INFO L435 NwaCegarLoop]: 1173 mSDtfsCounter, 4884 mSDsluCounter, 4723 mSDsCounter, 0 mSdLazyCounter, 4388 mSolverCounterSat, 1411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 5896 SdHoareTripleChecker+Invalid, 5799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1411 IncrementalHoareTripleChecker+Valid, 4388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:18,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4884 Valid, 5896 Invalid, 5799 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1411 Valid, 4388 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2024-11-27 19:52:19,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102487 states. [2024-11-27 19:52:27,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102487 to 42645. [2024-11-27 19:52:27,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42645 states, 35160 states have (on average 1.5998862343572242) internal successors, (56252), 35300 states have internal predecessors, (56252), 7284 states have call successors, (7284), 200 states have call predecessors, (7284), 200 states have return successors, (7284), 7144 states have call predecessors, (7284), 7284 states have call successors, (7284) [2024-11-27 19:52:28,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42645 states to 42645 states and 70820 transitions. [2024-11-27 19:52:28,396 INFO L78 Accepts]: Start accepts. Automaton has 42645 states and 70820 transitions. Word has length 805 [2024-11-27 19:52:28,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:28,400 INFO L471 AbstractCegarLoop]: Abstraction has 42645 states and 70820 transitions. [2024-11-27 19:52:28,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.2) internal successors, (168), 15 states have internal predecessors, (168), 3 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) [2024-11-27 19:52:28,401 INFO L276 IsEmpty]: Start isEmpty. Operand 42645 states and 70820 transitions. [2024-11-27 19:52:28,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2024-11-27 19:52:28,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:28,452 INFO L218 NwaCegarLoop]: trace histogram [128, 128, 128, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:52:28,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 19:52:28,452 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:52:28,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:28,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1546894496, now seen corresponding path program 1 times [2024-11-27 19:52:28,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:28,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889091985] [2024-11-27 19:52:28,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:28,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:41,216 INFO L134 CoverageAnalysis]: Checked inductivity of 32512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32512 trivial. 0 not checked. [2024-11-27 19:52:41,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:41,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889091985] [2024-11-27 19:52:41,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889091985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:52:41,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:52:41,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-27 19:52:41,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630152336] [2024-11-27 19:52:41,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:52:41,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 19:52:41,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:41,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 19:52:41,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-27 19:52:41,221 INFO L87 Difference]: Start difference. First operand 42645 states and 70820 transitions. Second operand has 17 states, 17 states have (on average 9.882352941176471) internal successors, (168), 17 states have internal predecessors, (168), 3 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) [2024-11-27 19:53:39,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:39,643 INFO L93 Difference]: Finished difference Result 225942 states and 372673 transitions. [2024-11-27 19:53:39,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 19:53:39,644 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.882352941176471) internal successors, (168), 17 states have internal predecessors, (168), 3 states have call successors, (128), 1 states have call predecessors, (128), 1 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) Word has length 805 [2024-11-27 19:53:39,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:40,700 INFO L225 Difference]: With dead ends: 225942 [2024-11-27 19:53:40,701 INFO L226 Difference]: Without dead ends: 183300 [2024-11-27 19:53:40,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 19:53:40,812 INFO L435 NwaCegarLoop]: 1182 mSDtfsCounter, 6465 mSDsluCounter, 6681 mSDsCounter, 0 mSdLazyCounter, 6169 mSolverCounterSat, 1270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6465 SdHoareTripleChecker+Valid, 7863 SdHoareTripleChecker+Invalid, 7439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1270 IncrementalHoareTripleChecker+Valid, 6169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:40,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6465 Valid, 7863 Invalid, 7439 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1270 Valid, 6169 Invalid, 0 Unknown, 0 Unchecked, 16.0s Time] [2024-11-27 19:53:40,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183300 states.