./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-57.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_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/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_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/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_389d0076-9ff4-45b1-9dec-b8cefea54081/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 129eb72cba2ec6662c92062b72f302d538a3dfe4c41c05f2b8937451c2edd34a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:02:21,905 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:02:21,981 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:02:21,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:02:21,987 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:02:22,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:02:22,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:02:22,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:02:22,011 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:02:22,011 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:02:22,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:02:22,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:02:22,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:02:22,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:02:22,012 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:02:22,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:02:22,012 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:02:22,012 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:02:22,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:02:22,013 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:02:22,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:02:22,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:02:22,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:02:22,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:02:22,013 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:02:22,013 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:02:22,013 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:02:22,014 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:02:22,014 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:02:22,014 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:02:22,014 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:02:22,014 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:02:22,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:02:22,014 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:02:22,014 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:02:22,014 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:02:22,014 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:02:22,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:02:22,015 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:02:22,015 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:02:22,015 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:02:22,015 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:02:22,016 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:02:22,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:02:22,016 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:02:22,016 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:02:22,016 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:02:22,016 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:02:22,016 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_389d0076-9ff4-45b1-9dec-b8cefea54081/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 -> 129eb72cba2ec6662c92062b72f302d538a3dfe4c41c05f2b8937451c2edd34a [2024-11-28 03:02:22,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:02:22,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:02:22,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:02:22,289 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:02:22,289 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:02:22,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-57.i [2024-11-28 03:02:25,248 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/data/102af5537/00cb4d171585462abaa9204f3c8b385f/FLAG47a23589d [2024-11-28 03:02:25,511 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:02:25,512 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-57.i [2024-11-28 03:02:25,521 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/data/102af5537/00cb4d171585462abaa9204f3c8b385f/FLAG47a23589d [2024-11-28 03:02:25,540 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/data/102af5537/00cb4d171585462abaa9204f3c8b385f [2024-11-28 03:02:25,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:02:25,544 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:02:25,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:02:25,545 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:02:25,550 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:02:25,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:25" (1/1) ... [2024-11-28 03:02:25,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f1348e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:25, skipping insertion in model container [2024-11-28 03:02:25,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:25" (1/1) ... [2024-11-28 03:02:25,580 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:02:25,774 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_389d0076-9ff4-45b1-9dec-b8cefea54081/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-57.i[916,929] [2024-11-28 03:02:25,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:02:25,959 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:02:25,978 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_389d0076-9ff4-45b1-9dec-b8cefea54081/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-57.i[916,929] [2024-11-28 03:02:26,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:02:26,076 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:02:26,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26 WrapperNode [2024-11-28 03:02:26,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:02:26,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:02:26,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:02:26,078 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:02:26,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26" (1/1) ... [2024-11-28 03:02:26,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26" (1/1) ... [2024-11-28 03:02:26,166 INFO L138 Inliner]: procedures = 26, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 260 [2024-11-28 03:02:26,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:02:26,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:02:26,169 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:02:26,169 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:02:26,179 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26" (1/1) ... [2024-11-28 03:02:26,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26" (1/1) ... [2024-11-28 03:02:26,184 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26" (1/1) ... [2024-11-28 03:02:26,207 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:02:26,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26" (1/1) ... [2024-11-28 03:02:26,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26" (1/1) ... [2024-11-28 03:02:26,219 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26" (1/1) ... [2024-11-28 03:02:26,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26" (1/1) ... [2024-11-28 03:02:26,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26" (1/1) ... [2024-11-28 03:02:26,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26" (1/1) ... [2024-11-28 03:02:26,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26" (1/1) ... [2024-11-28 03:02:26,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:02:26,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:02:26,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:02:26,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:02:26,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26" (1/1) ... [2024-11-28 03:02:26,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:02:26,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:26,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:02:26,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:02:26,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:02:26,322 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:02:26,323 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:02:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:02:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:02:26,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:02:26,422 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:02:26,424 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:02:27,122 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-28 03:02:27,122 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:02:27,140 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:02:27,140 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:02:27,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:27 BoogieIcfgContainer [2024-11-28 03:02:27,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:02:27,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:02:27,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:02:27,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:02:27,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:02:25" (1/3) ... [2024-11-28 03:02:27,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64010f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:02:27, skipping insertion in model container [2024-11-28 03:02:27,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:26" (2/3) ... [2024-11-28 03:02:27,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64010f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:02:27, skipping insertion in model container [2024-11-28 03:02:27,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:27" (3/3) ... [2024-11-28 03:02:27,154 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-57.i [2024-11-28 03:02:27,170 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:02:27,172 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_100-1loop_file-57.i that has 2 procedures, 112 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:02:27,291 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:02:27,306 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;@26123bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:02:27,307 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:02:27,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 03:02:27,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-28 03:02:27,334 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:27,335 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:27,336 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:02:27,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:27,343 INFO L85 PathProgramCache]: Analyzing trace with hash 697120615, now seen corresponding path program 1 times [2024-11-28 03:02:27,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:27,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330602536] [2024-11-28 03:02:27,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:27,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:27,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2450 trivial. 0 not checked. [2024-11-28 03:02:27,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:27,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330602536] [2024-11-28 03:02:27,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330602536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:27,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962345323] [2024-11-28 03:02:27,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:27,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:27,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:27,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:27,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:02:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:28,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:02:28,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:28,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 2450 trivial. 0 not checked. [2024-11-28 03:02:28,256 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:02:28,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962345323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:28,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:28,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:02:28,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278988680] [2024-11-28 03:02:28,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:28,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:02:28,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:28,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:02:28,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:02:28,297 INFO L87 Difference]: Start difference. First operand has 112 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-28 03:02:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:28,340 INFO L93 Difference]: Finished difference Result 221 states and 389 transitions. [2024-11-28 03:02:28,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:02:28,344 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 2 states have call successors, (36) Word has length 228 [2024-11-28 03:02:28,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:28,353 INFO L225 Difference]: With dead ends: 221 [2024-11-28 03:02:28,354 INFO L226 Difference]: Without dead ends: 108 [2024-11-28 03:02:28,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:02:28,365 INFO L435 NwaCegarLoop]: 175 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, 175 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:28,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:02:28,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-28 03:02:28,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-28 03:02:28,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 70 states have internal predecessors, (99), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 03:02:28,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 171 transitions. [2024-11-28 03:02:28,431 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 171 transitions. Word has length 228 [2024-11-28 03:02:28,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:28,434 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 171 transitions. [2024-11-28 03:02:28,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-28 03:02:28,434 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 171 transitions. [2024-11-28 03:02:28,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-28 03:02:28,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:28,439 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:28,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:28,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_389d0076-9ff4-45b1-9dec-b8cefea54081/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:02:28,640 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:02:28,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:28,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1649967583, now seen corresponding path program 1 times [2024-11-28 03:02:28,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:28,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769198834] [2024-11-28 03:02:28,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:28,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:51,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:03:51,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:51,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769198834] [2024-11-28 03:03:51,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769198834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:51,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:03:51,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:03:51,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600817984] [2024-11-28 03:03:51,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:51,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:03:51,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:51,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:03:51,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:03:51,776 INFO L87 Difference]: Start difference. First operand 108 states and 171 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:03:58,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:58,393 INFO L93 Difference]: Finished difference Result 489 states and 765 transitions. [2024-11-28 03:03:58,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:03:58,394 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 228 [2024-11-28 03:03:58,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:58,401 INFO L225 Difference]: With dead ends: 489 [2024-11-28 03:03:58,401 INFO L226 Difference]: Without dead ends: 384 [2024-11-28 03:03:58,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:03:58,408 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 620 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:58,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 822 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-28 03:03:58,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-28 03:03:58,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 193. [2024-11-28 03:03:58,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 118 states have (on average 1.38135593220339) internal successors, (163), 118 states have internal predecessors, (163), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 03:03:58,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 307 transitions. [2024-11-28 03:03:58,482 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 307 transitions. Word has length 228 [2024-11-28 03:03:58,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:58,483 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 307 transitions. [2024-11-28 03:03:58,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:03:58,485 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 307 transitions. [2024-11-28 03:03:58,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-28 03:03:58,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:58,492 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:58,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:03:58,493 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:03:58,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:58,495 INFO L85 PathProgramCache]: Analyzing trace with hash 628899229, now seen corresponding path program 1 times [2024-11-28 03:03:58,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:58,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233887459] [2024-11-28 03:03:58,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:58,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:22,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:04:22,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:22,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233887459] [2024-11-28 03:04:22,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233887459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:22,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:22,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:04:22,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876456093] [2024-11-28 03:04:22,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:22,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:04:22,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:22,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:04:22,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:04:22,830 INFO L87 Difference]: Start difference. First operand 193 states and 307 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:04:25,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:25,211 INFO L93 Difference]: Finished difference Result 438 states and 684 transitions. [2024-11-28 03:04:25,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:04:25,212 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 228 [2024-11-28 03:04:25,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:25,218 INFO L225 Difference]: With dead ends: 438 [2024-11-28 03:04:25,218 INFO L226 Difference]: Without dead ends: 333 [2024-11-28 03:04:25,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:04:25,225 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 225 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:25,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 777 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:04:25,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-28 03:04:25,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 124. [2024-11-28 03:04:25,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 86 states have (on average 1.4651162790697674) internal successors, (126), 86 states have internal predecessors, (126), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 03:04:25,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 198 transitions. [2024-11-28 03:04:25,250 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 198 transitions. Word has length 228 [2024-11-28 03:04:25,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:25,254 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 198 transitions. [2024-11-28 03:04:25,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:04:25,255 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 198 transitions. [2024-11-28 03:04:25,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:04:25,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:25,260 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:04:25,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:04:25,261 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:25,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:25,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1146229046, now seen corresponding path program 1 times [2024-11-28 03:04:25,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:25,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500281378] [2024-11-28 03:04:25,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:25,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:25,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:04:25,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:25,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500281378] [2024-11-28 03:04:25,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500281378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:25,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:25,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:04:25,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980081307] [2024-11-28 03:04:25,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:25,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:04:25,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:25,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:04:25,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:04:25,976 INFO L87 Difference]: Start difference. First operand 124 states and 198 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:04:26,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:26,521 INFO L93 Difference]: Finished difference Result 386 states and 616 transitions. [2024-11-28 03:04:26,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:04:26,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 229 [2024-11-28 03:04:26,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:26,525 INFO L225 Difference]: With dead ends: 386 [2024-11-28 03:04:26,526 INFO L226 Difference]: Without dead ends: 265 [2024-11-28 03:04:26,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:04:26,527 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 185 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:26,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 662 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:04:26,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-28 03:04:26,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 202. [2024-11-28 03:04:26,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 127 states have (on average 1.4015748031496063) internal successors, (178), 127 states have internal predecessors, (178), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 03:04:26,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 322 transitions. [2024-11-28 03:04:26,573 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 322 transitions. Word has length 229 [2024-11-28 03:04:26,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:26,574 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 322 transitions. [2024-11-28 03:04:26,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:04:26,576 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 322 transitions. [2024-11-28 03:04:26,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:04:26,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:26,579 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:04:26,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:04:26,579 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:26,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:26,580 INFO L85 PathProgramCache]: Analyzing trace with hash 125160692, now seen corresponding path program 1 times [2024-11-28 03:04:26,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:26,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925857701] [2024-11-28 03:04:26,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:26,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:33,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:04:33,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:33,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925857701] [2024-11-28 03:04:33,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925857701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:33,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:33,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:04:33,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502205844] [2024-11-28 03:04:33,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:33,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:04:33,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:33,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:04:33,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:04:33,330 INFO L87 Difference]: Start difference. First operand 202 states and 322 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:04:36,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:36,931 INFO L93 Difference]: Finished difference Result 510 states and 803 transitions. [2024-11-28 03:04:36,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:04:36,932 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 229 [2024-11-28 03:04:36,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:36,935 INFO L225 Difference]: With dead ends: 510 [2024-11-28 03:04:36,935 INFO L226 Difference]: Without dead ends: 389 [2024-11-28 03:04:36,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:04:36,939 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 461 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:36,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1060 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 03:04:36,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-28 03:04:36,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 204. [2024-11-28 03:04:36,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 129 states have (on average 1.4108527131782946) internal successors, (182), 129 states have internal predecessors, (182), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 03:04:36,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 326 transitions. [2024-11-28 03:04:36,971 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 326 transitions. Word has length 229 [2024-11-28 03:04:36,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:36,972 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 326 transitions. [2024-11-28 03:04:36,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:04:36,972 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 326 transitions. [2024-11-28 03:04:36,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:04:36,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:36,976 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:04:36,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:04:36,976 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:36,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:36,977 INFO L85 PathProgramCache]: Analyzing trace with hash -737854972, now seen corresponding path program 1 times [2024-11-28 03:04:36,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:36,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29184819] [2024-11-28 03:04:36,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:36,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:17,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:05:17,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:17,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29184819] [2024-11-28 03:05:17,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29184819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:17,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:05:17,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:05:17,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523378035] [2024-11-28 03:05:17,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:17,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:05:17,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:17,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:05:17,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:05:17,874 INFO L87 Difference]: Start difference. First operand 204 states and 326 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:05:26,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:26,161 INFO L93 Difference]: Finished difference Result 530 states and 821 transitions. [2024-11-28 03:05:26,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:05:26,163 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 229 [2024-11-28 03:05:26,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:26,167 INFO L225 Difference]: With dead ends: 530 [2024-11-28 03:05:26,167 INFO L226 Difference]: Without dead ends: 409 [2024-11-28 03:05:26,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=125, Invalid=295, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:05:26,171 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 585 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:26,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 909 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:05:26,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-28 03:05:26,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 212. [2024-11-28 03:05:26,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 137 states have (on average 1.437956204379562) internal successors, (197), 137 states have internal predecessors, (197), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 03:05:26,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 341 transitions. [2024-11-28 03:05:26,208 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 341 transitions. Word has length 229 [2024-11-28 03:05:26,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:26,210 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 341 transitions. [2024-11-28 03:05:26,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:05:26,211 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 341 transitions. [2024-11-28 03:05:26,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:05:26,215 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:26,215 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:26,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:05:26,216 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:05:26,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:26,216 INFO L85 PathProgramCache]: Analyzing trace with hash 865619546, now seen corresponding path program 1 times [2024-11-28 03:05:26,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:26,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166081766] [2024-11-28 03:05:26,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:26,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:15,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:06:15,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:15,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166081766] [2024-11-28 03:06:15,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166081766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:15,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:15,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:06:15,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9904415] [2024-11-28 03:06:15,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:15,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:06:15,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:15,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:06:15,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:06:15,088 INFO L87 Difference]: Start difference. First operand 212 states and 341 transitions. Second operand has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-28 03:06:24,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:24,641 INFO L93 Difference]: Finished difference Result 582 states and 918 transitions. [2024-11-28 03:06:24,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 03:06:24,642 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 229 [2024-11-28 03:06:24,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:24,645 INFO L225 Difference]: With dead ends: 582 [2024-11-28 03:06:24,645 INFO L226 Difference]: Without dead ends: 457 [2024-11-28 03:06:24,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=250, Invalid=742, Unknown=0, NotChecked=0, Total=992 [2024-11-28 03:06:24,647 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 880 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:24,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 949 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 03:06:24,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-28 03:06:24,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 224. [2024-11-28 03:06:24,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 149 states have (on average 1.4697986577181208) internal successors, (219), 149 states have internal predecessors, (219), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 03:06:24,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 363 transitions. [2024-11-28 03:06:24,683 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 363 transitions. Word has length 229 [2024-11-28 03:06:24,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:24,686 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 363 transitions. [2024-11-28 03:06:24,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-28 03:06:24,686 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 363 transitions. [2024-11-28 03:06:24,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:06:24,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:24,688 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:24,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:06:24,689 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:24,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:24,690 INFO L85 PathProgramCache]: Analyzing trace with hash -588872452, now seen corresponding path program 1 times [2024-11-28 03:06:24,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:24,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399278698] [2024-11-28 03:06:24,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:24,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:25,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:06:25,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:25,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399278698] [2024-11-28 03:06:25,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399278698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:25,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:25,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:06:25,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903862647] [2024-11-28 03:06:25,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:25,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:06:25,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:25,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:06:25,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:06:25,100 INFO L87 Difference]: Start difference. First operand 224 states and 363 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:06:25,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:25,475 INFO L93 Difference]: Finished difference Result 625 states and 1001 transitions. [2024-11-28 03:06:25,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:06:25,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 229 [2024-11-28 03:06:25,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:25,480 INFO L225 Difference]: With dead ends: 625 [2024-11-28 03:06:25,480 INFO L226 Difference]: Without dead ends: 500 [2024-11-28 03:06:25,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:06:25,482 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 325 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:25,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 515 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:06:25,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-28 03:06:25,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 488. [2024-11-28 03:06:25,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 343 states have (on average 1.4752186588921283) internal successors, (506), 345 states have internal predecessors, (506), 138 states have call successors, (138), 6 states have call predecessors, (138), 6 states have return successors, (138), 136 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-28 03:06:25,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 782 transitions. [2024-11-28 03:06:25,535 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 782 transitions. Word has length 229 [2024-11-28 03:06:25,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:25,536 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 782 transitions. [2024-11-28 03:06:25,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:06:25,536 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 782 transitions. [2024-11-28 03:06:25,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:06:25,538 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:25,538 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:25,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:06:25,538 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:25,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:25,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1175678466, now seen corresponding path program 1 times [2024-11-28 03:06:25,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:25,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86278579] [2024-11-28 03:06:25,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:25,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:45,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:06:45,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:45,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86278579] [2024-11-28 03:06:45,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86278579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:45,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:45,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:06:45,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457705029] [2024-11-28 03:06:45,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:45,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:06:45,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:45,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:06:45,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:06:45,269 INFO L87 Difference]: Start difference. First operand 488 states and 782 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-28 03:06:50,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:50,113 INFO L93 Difference]: Finished difference Result 1415 states and 2209 transitions. [2024-11-28 03:06:50,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:06:50,113 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 229 [2024-11-28 03:06:50,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:50,122 INFO L225 Difference]: With dead ends: 1415 [2024-11-28 03:06:50,123 INFO L226 Difference]: Without dead ends: 1033 [2024-11-28 03:06:50,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=258, Invalid=672, Unknown=0, NotChecked=0, Total=930 [2024-11-28 03:06:50,127 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 1244 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:50,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 829 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 03:06:50,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2024-11-28 03:06:50,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 500. [2024-11-28 03:06:50,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 355 states have (on average 1.4788732394366197) internal successors, (525), 357 states have internal predecessors, (525), 138 states have call successors, (138), 6 states have call predecessors, (138), 6 states have return successors, (138), 136 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-28 03:06:50,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 801 transitions. [2024-11-28 03:06:50,210 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 801 transitions. Word has length 229 [2024-11-28 03:06:50,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:50,211 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 801 transitions. [2024-11-28 03:06:50,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-28 03:06:50,212 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 801 transitions. [2024-11-28 03:06:50,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:06:50,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:50,214 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:50,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:06:50,215 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:50,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:50,215 INFO L85 PathProgramCache]: Analyzing trace with hash 875315604, now seen corresponding path program 1 times [2024-11-28 03:06:50,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:50,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065692164] [2024-11-28 03:06:50,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:50,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:24,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:07:24,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:24,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065692164] [2024-11-28 03:07:24,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065692164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:24,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:24,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:07:24,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716245487] [2024-11-28 03:07:24,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:24,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:07:24,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:24,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:07:24,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:07:24,735 INFO L87 Difference]: Start difference. First operand 500 states and 801 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:07:27,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:27,610 INFO L93 Difference]: Finished difference Result 1488 states and 2313 transitions. [2024-11-28 03:07:27,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:07:27,611 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 229 [2024-11-28 03:07:27,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:27,617 INFO L225 Difference]: With dead ends: 1488 [2024-11-28 03:07:27,617 INFO L226 Difference]: Without dead ends: 1106 [2024-11-28 03:07:27,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:07:27,619 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 422 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:27,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 708 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:07:27,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2024-11-28 03:07:27,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 510. [2024-11-28 03:07:27,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 365 states have (on average 1.4931506849315068) internal successors, (545), 367 states have internal predecessors, (545), 138 states have call successors, (138), 6 states have call predecessors, (138), 6 states have return successors, (138), 136 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-28 03:07:27,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 821 transitions. [2024-11-28 03:07:27,686 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 821 transitions. Word has length 229 [2024-11-28 03:07:27,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:27,687 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 821 transitions. [2024-11-28 03:07:27,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:07:27,687 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 821 transitions. [2024-11-28 03:07:27,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:07:27,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:27,690 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:27,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:07:27,691 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:27,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:27,692 INFO L85 PathProgramCache]: Analyzing trace with hash -135801646, now seen corresponding path program 1 times [2024-11-28 03:07:27,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:27,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430285282] [2024-11-28 03:07:27,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:27,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:54,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:07:54,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:54,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430285282] [2024-11-28 03:07:54,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430285282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:54,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:54,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:07:54,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331316608] [2024-11-28 03:07:54,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:54,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:07:54,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:54,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:07:54,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:07:54,535 INFO L87 Difference]: Start difference. First operand 510 states and 821 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:08:03,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:03,882 INFO L93 Difference]: Finished difference Result 1568 states and 2452 transitions. [2024-11-28 03:08:03,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:08:03,883 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 229 [2024-11-28 03:08:03,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:03,890 INFO L225 Difference]: With dead ends: 1568 [2024-11-28 03:08:03,891 INFO L226 Difference]: Without dead ends: 1174 [2024-11-28 03:08:03,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:08:03,893 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 591 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:03,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 957 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:08:03,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2024-11-28 03:08:03,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 538. [2024-11-28 03:08:03,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 393 states have (on average 1.5114503816793894) internal successors, (594), 395 states have internal predecessors, (594), 138 states have call successors, (138), 6 states have call predecessors, (138), 6 states have return successors, (138), 136 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-28 03:08:03,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 870 transitions. [2024-11-28 03:08:03,971 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 870 transitions. Word has length 229 [2024-11-28 03:08:03,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:03,972 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 870 transitions. [2024-11-28 03:08:03,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:08:03,972 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 870 transitions. [2024-11-28 03:08:03,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:08:03,977 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:03,977 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:03,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:08:03,977 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:03,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:03,978 INFO L85 PathProgramCache]: Analyzing trace with hash -722728356, now seen corresponding path program 1 times [2024-11-28 03:08:03,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:08:03,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251614776] [2024-11-28 03:08:03,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:03,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:08:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:34,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:08:34,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:08:34,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251614776] [2024-11-28 03:08:34,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251614776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:34,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:34,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:08:34,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935517969] [2024-11-28 03:08:34,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:34,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:08:34,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:08:34,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:08:34,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:08:34,179 INFO L87 Difference]: Start difference. First operand 538 states and 870 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:08:37,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:37,518 INFO L93 Difference]: Finished difference Result 1510 states and 2359 transitions. [2024-11-28 03:08:37,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:08:37,519 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 229 [2024-11-28 03:08:37,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:37,525 INFO L225 Difference]: With dead ends: 1510 [2024-11-28 03:08:37,525 INFO L226 Difference]: Without dead ends: 1116 [2024-11-28 03:08:37,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:08:37,528 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 366 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:37,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 626 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:08:37,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2024-11-28 03:08:37,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 546. [2024-11-28 03:08:37,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 401 states have (on average 1.5187032418952617) internal successors, (609), 403 states have internal predecessors, (609), 138 states have call successors, (138), 6 states have call predecessors, (138), 6 states have return successors, (138), 136 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-28 03:08:37,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 885 transitions. [2024-11-28 03:08:37,607 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 885 transitions. Word has length 229 [2024-11-28 03:08:37,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:37,609 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 885 transitions. [2024-11-28 03:08:37,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:08:37,609 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 885 transitions. [2024-11-28 03:08:37,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:08:37,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:37,611 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:37,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:08:37,612 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:37,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:37,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2117746942, now seen corresponding path program 1 times [2024-11-28 03:08:37,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:08:37,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616083305] [2024-11-28 03:08:37,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:37,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:08:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:38,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:08:38,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:08:38,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616083305] [2024-11-28 03:08:38,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616083305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:38,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:38,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:08:38,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459308817] [2024-11-28 03:08:38,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:38,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:08:38,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:08:38,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:08:38,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:08:38,088 INFO L87 Difference]: Start difference. First operand 546 states and 885 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:08:38,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:38,200 INFO L93 Difference]: Finished difference Result 1152 states and 1847 transitions. [2024-11-28 03:08:38,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:08:38,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 229 [2024-11-28 03:08:38,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:38,206 INFO L225 Difference]: With dead ends: 1152 [2024-11-28 03:08:38,206 INFO L226 Difference]: Without dead ends: 740 [2024-11-28 03:08:38,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:08:38,209 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 116 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:38,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 423 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:08:38,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2024-11-28 03:08:38,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 736. [2024-11-28 03:08:38,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 524 states have (on average 1.465648854961832) internal successors, (768), 528 states have internal predecessors, (768), 202 states have call successors, (202), 9 states have call predecessors, (202), 9 states have return successors, (202), 198 states have call predecessors, (202), 202 states have call successors, (202) [2024-11-28 03:08:38,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1172 transitions. [2024-11-28 03:08:38,307 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1172 transitions. Word has length 229 [2024-11-28 03:08:38,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:38,308 INFO L471 AbstractCegarLoop]: Abstraction has 736 states and 1172 transitions. [2024-11-28 03:08:38,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:08:38,308 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1172 transitions. [2024-11-28 03:08:38,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:08:38,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:38,310 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:38,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:08:38,311 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:38,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:38,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1530940928, now seen corresponding path program 1 times [2024-11-28 03:08:38,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:08:38,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887502428] [2024-11-28 03:08:38,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:38,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:08:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:59,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:08:59,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:08:59,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887502428] [2024-11-28 03:08:59,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887502428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:59,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:59,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:08:59,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877765862] [2024-11-28 03:08:59,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:59,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:08:59,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:08:59,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:08:59,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:08:59,827 INFO L87 Difference]: Start difference. First operand 736 states and 1172 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:09:01,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:01,947 INFO L93 Difference]: Finished difference Result 1946 states and 3013 transitions. [2024-11-28 03:09:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:09:01,948 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 229 [2024-11-28 03:09:01,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:01,957 INFO L225 Difference]: With dead ends: 1946 [2024-11-28 03:09:01,958 INFO L226 Difference]: Without dead ends: 1356 [2024-11-28 03:09:01,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:09:01,961 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 270 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:01,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 744 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:09:01,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2024-11-28 03:09:02,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 734. [2024-11-28 03:09:02,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 522 states have (on average 1.4636015325670497) internal successors, (764), 526 states have internal predecessors, (764), 202 states have call successors, (202), 9 states have call predecessors, (202), 9 states have return successors, (202), 198 states have call predecessors, (202), 202 states have call successors, (202) [2024-11-28 03:09:02,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1168 transitions. [2024-11-28 03:09:02,092 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1168 transitions. Word has length 229 [2024-11-28 03:09:02,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:02,093 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 1168 transitions. [2024-11-28 03:09:02,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:09:02,093 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1168 transitions. [2024-11-28 03:09:02,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:09:02,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:02,095 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:02,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:09:02,096 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:02,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:02,096 INFO L85 PathProgramCache]: Analyzing trace with hash -2127287658, now seen corresponding path program 1 times [2024-11-28 03:09:02,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:09:02,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914419370] [2024-11-28 03:09:02,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:02,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:09:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:09:02,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:09:02,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914419370] [2024-11-28 03:09:02,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914419370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:09:02,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:09:02,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:09:02,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668832090] [2024-11-28 03:09:02,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:09:02,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:09:02,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:09:02,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:09:02,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:09:02,222 INFO L87 Difference]: Start difference. First operand 734 states and 1168 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:09:02,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:02,405 INFO L93 Difference]: Finished difference Result 1856 states and 2962 transitions. [2024-11-28 03:09:02,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:09:02,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 229 [2024-11-28 03:09:02,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:02,422 INFO L225 Difference]: With dead ends: 1856 [2024-11-28 03:09:02,422 INFO L226 Difference]: Without dead ends: 1222 [2024-11-28 03:09:02,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:09:02,426 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 98 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:02,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 320 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:09:02,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2024-11-28 03:09:02,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1181. [2024-11-28 03:09:02,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 844 states have (on average 1.45260663507109) internal successors, (1226), 850 states have internal predecessors, (1226), 321 states have call successors, (321), 15 states have call predecessors, (321), 15 states have return successors, (321), 315 states have call predecessors, (321), 321 states have call successors, (321) [2024-11-28 03:09:02,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1868 transitions. [2024-11-28 03:09:02,613 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1868 transitions. Word has length 229 [2024-11-28 03:09:02,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:02,615 INFO L471 AbstractCegarLoop]: Abstraction has 1181 states and 1868 transitions. [2024-11-28 03:09:02,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:09:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1868 transitions. [2024-11-28 03:09:02,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:09:02,618 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:02,618 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:02,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:09:02,619 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:02,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:02,620 INFO L85 PathProgramCache]: Analyzing trace with hash 478735896, now seen corresponding path program 1 times [2024-11-28 03:09:02,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:09:02,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599927604] [2024-11-28 03:09:02,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:02,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:09:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:09:02,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:09:02,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599927604] [2024-11-28 03:09:02,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599927604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:09:02,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:09:02,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:09:02,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615529407] [2024-11-28 03:09:02,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:09:02,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:09:02,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:09:02,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:09:02,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:09:02,824 INFO L87 Difference]: Start difference. First operand 1181 states and 1868 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:09:02,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:02,991 INFO L93 Difference]: Finished difference Result 2880 states and 4530 transitions. [2024-11-28 03:09:02,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:09:02,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 229 [2024-11-28 03:09:02,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:03,007 INFO L225 Difference]: With dead ends: 2880 [2024-11-28 03:09:03,007 INFO L226 Difference]: Without dead ends: 1859 [2024-11-28 03:09:03,012 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 [2024-11-28 03:09:03,012 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 92 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:03,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 373 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:09:03,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1859 states. [2024-11-28 03:09:03,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1859 to 1844. [2024-11-28 03:09:03,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1257 states have (on average 1.4105011933174225) internal successors, (1773), 1267 states have internal predecessors, (1773), 559 states have call successors, (559), 27 states have call predecessors, (559), 27 states have return successors, (559), 549 states have call predecessors, (559), 559 states have call successors, (559) [2024-11-28 03:09:03,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2891 transitions. [2024-11-28 03:09:03,311 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2891 transitions. Word has length 229 [2024-11-28 03:09:03,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:03,312 INFO L471 AbstractCegarLoop]: Abstraction has 1844 states and 2891 transitions. [2024-11-28 03:09:03,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:09:03,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2891 transitions. [2024-11-28 03:09:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:09:03,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:03,316 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:03,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:09:03,317 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:03,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:03,317 INFO L85 PathProgramCache]: Analyzing trace with hash 760636448, now seen corresponding path program 1 times [2024-11-28 03:09:03,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:09:03,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132451981] [2024-11-28 03:09:03,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:03,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:09:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:31,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:09:31,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:09:31,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132451981] [2024-11-28 03:09:31,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132451981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:09:31,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:09:31,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:09:31,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877744288] [2024-11-28 03:09:31,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:09:31,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:09:31,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:09:31,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:09:31,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:09:31,426 INFO L87 Difference]: Start difference. First operand 1844 states and 2891 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 3 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-11-28 03:09:36,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:36,938 INFO L93 Difference]: Finished difference Result 4162 states and 6462 transitions. [2024-11-28 03:09:36,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:09:36,939 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 3 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 229 [2024-11-28 03:09:36,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:36,956 INFO L225 Difference]: With dead ends: 4162 [2024-11-28 03:09:36,957 INFO L226 Difference]: Without dead ends: 2486 [2024-11-28 03:09:36,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:09:36,965 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 620 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:36,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 901 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 03:09:36,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2024-11-28 03:09:37,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 1859. [2024-11-28 03:09:37,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1272 states have (on average 1.4119496855345912) internal successors, (1796), 1282 states have internal predecessors, (1796), 559 states have call successors, (559), 27 states have call predecessors, (559), 27 states have return successors, (559), 549 states have call predecessors, (559), 559 states have call successors, (559) [2024-11-28 03:09:37,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2914 transitions. [2024-11-28 03:09:37,252 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2914 transitions. Word has length 229 [2024-11-28 03:09:37,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:37,252 INFO L471 AbstractCegarLoop]: Abstraction has 1859 states and 2914 transitions. [2024-11-28 03:09:37,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 3 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-11-28 03:09:37,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2914 transitions. [2024-11-28 03:09:37,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:09:37,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:37,257 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:37,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:09:37,257 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:37,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:37,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1018801886, now seen corresponding path program 1 times [2024-11-28 03:09:37,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:09:37,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799173871] [2024-11-28 03:09:37,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:37,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:09:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:26,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:10:26,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:26,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799173871] [2024-11-28 03:10:26,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799173871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:26,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:26,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:10:26,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805998616] [2024-11-28 03:10:26,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:26,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:10:26,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:26,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:10:26,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:10:26,943 INFO L87 Difference]: Start difference. First operand 1859 states and 2914 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-28 03:10:34,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:34,013 INFO L93 Difference]: Finished difference Result 4266 states and 6600 transitions. [2024-11-28 03:10:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:10:34,014 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 229 [2024-11-28 03:10:34,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:34,032 INFO L225 Difference]: With dead ends: 4266 [2024-11-28 03:10:34,032 INFO L226 Difference]: Without dead ends: 2590 [2024-11-28 03:10:34,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:10:34,040 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 792 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:34,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 961 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 03:10:34,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2590 states. [2024-11-28 03:10:34,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2590 to 1870. [2024-11-28 03:10:34,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1870 states, 1282 states have (on average 1.4110764430577223) internal successors, (1809), 1292 states have internal predecessors, (1809), 559 states have call successors, (559), 28 states have call predecessors, (559), 28 states have return successors, (559), 549 states have call predecessors, (559), 559 states have call successors, (559) [2024-11-28 03:10:34,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2927 transitions. [2024-11-28 03:10:34,318 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2927 transitions. Word has length 229 [2024-11-28 03:10:34,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:34,319 INFO L471 AbstractCegarLoop]: Abstraction has 1870 states and 2927 transitions. [2024-11-28 03:10:34,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-28 03:10:34,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2927 transitions. [2024-11-28 03:10:34,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:10:34,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:34,323 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:34,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:10:34,323 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:34,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:34,324 INFO L85 PathProgramCache]: Analyzing trace with hash -260431906, now seen corresponding path program 1 times [2024-11-28 03:10:34,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:34,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495375420] [2024-11-28 03:10:34,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:34,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:41,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:11:41,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:41,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495375420] [2024-11-28 03:11:41,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495375420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:41,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:41,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:11:41,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023488165] [2024-11-28 03:11:41,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:41,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:11:41,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:41,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:11:41,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:11:41,117 INFO L87 Difference]: Start difference. First operand 1870 states and 2927 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-28 03:11:47,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:47,889 INFO L93 Difference]: Finished difference Result 4371 states and 6749 transitions. [2024-11-28 03:11:47,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:11:47,890 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 229 [2024-11-28 03:11:47,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:47,908 INFO L225 Difference]: With dead ends: 4371 [2024-11-28 03:11:47,908 INFO L226 Difference]: Without dead ends: 2695 [2024-11-28 03:11:47,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:11:47,916 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 489 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:47,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 893 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-28 03:11:47,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2024-11-28 03:11:48,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 1881. [2024-11-28 03:11:48,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1881 states, 1293 states have (on average 1.4122196442382058) internal successors, (1826), 1303 states have internal predecessors, (1826), 559 states have call successors, (559), 28 states have call predecessors, (559), 28 states have return successors, (559), 549 states have call predecessors, (559), 559 states have call successors, (559) [2024-11-28 03:11:48,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2944 transitions. [2024-11-28 03:11:48,198 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2944 transitions. Word has length 229 [2024-11-28 03:11:48,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:48,199 INFO L471 AbstractCegarLoop]: Abstraction has 1881 states and 2944 transitions. [2024-11-28 03:11:48,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-28 03:11:48,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2944 transitions. [2024-11-28 03:11:48,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:11:48,202 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:48,202 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:48,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:11:48,203 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:48,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:48,204 INFO L85 PathProgramCache]: Analyzing trace with hash -2266468, now seen corresponding path program 1 times [2024-11-28 03:11:48,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:48,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314266101] [2024-11-28 03:11:48,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:48,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:03,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:13:03,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:03,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314266101] [2024-11-28 03:13:03,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314266101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:03,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:03,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:13:03,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037726518] [2024-11-28 03:13:03,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:03,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:13:03,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:03,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:13:03,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:13:03,795 INFO L87 Difference]: Start difference. First operand 1881 states and 2944 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-11-28 03:13:08,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:08,175 INFO L93 Difference]: Finished difference Result 4536 states and 6967 transitions. [2024-11-28 03:13:08,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:13:08,175 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 229 [2024-11-28 03:13:08,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:08,194 INFO L225 Difference]: With dead ends: 4536 [2024-11-28 03:13:08,195 INFO L226 Difference]: Without dead ends: 2860 [2024-11-28 03:13:08,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:13:08,201 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 498 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:08,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1174 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 03:13:08,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states. [2024-11-28 03:13:08,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 1888. [2024-11-28 03:13:08,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1888 states, 1300 states have (on average 1.4123076923076923) internal successors, (1836), 1310 states have internal predecessors, (1836), 559 states have call successors, (559), 28 states have call predecessors, (559), 28 states have return successors, (559), 549 states have call predecessors, (559), 559 states have call successors, (559) [2024-11-28 03:13:08,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1888 states to 1888 states and 2954 transitions. [2024-11-28 03:13:08,462 INFO L78 Accepts]: Start accepts. Automaton has 1888 states and 2954 transitions. Word has length 229 [2024-11-28 03:13:08,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:08,463 INFO L471 AbstractCegarLoop]: Abstraction has 1888 states and 2954 transitions. [2024-11-28 03:13:08,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-11-28 03:13:08,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1888 states and 2954 transitions. [2024-11-28 03:13:08,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-28 03:13:08,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:08,466 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:08,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:13:08,466 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:08,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:08,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1709053342, now seen corresponding path program 1 times [2024-11-28 03:13:08,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:08,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444363314] [2024-11-28 03:13:08,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:08,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:49,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:13:49,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:49,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444363314] [2024-11-28 03:13:49,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444363314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:49,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:49,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 03:13:49,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569729244] [2024-11-28 03:13:49,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:49,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:13:49,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:49,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:13:49,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:13:49,480 INFO L87 Difference]: Start difference. First operand 1888 states and 2954 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-28 03:13:56,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:56,484 INFO L93 Difference]: Finished difference Result 4059 states and 6300 transitions. [2024-11-28 03:13:56,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 03:13:56,484 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 230 [2024-11-28 03:13:56,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:56,499 INFO L225 Difference]: With dead ends: 4059 [2024-11-28 03:13:56,499 INFO L226 Difference]: Without dead ends: 3449 [2024-11-28 03:13:56,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:13:56,503 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 1054 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 2115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:56,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 1268 Invalid, 2115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-28 03:13:56,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3449 states. [2024-11-28 03:13:56,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3449 to 1901. [2024-11-28 03:13:56,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1312 states have (on average 1.4138719512195121) internal successors, (1855), 1322 states have internal predecessors, (1855), 559 states have call successors, (559), 29 states have call predecessors, (559), 29 states have return successors, (559), 549 states have call predecessors, (559), 559 states have call successors, (559) [2024-11-28 03:13:56,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2973 transitions. [2024-11-28 03:13:56,829 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2973 transitions. Word has length 230 [2024-11-28 03:13:56,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:56,830 INFO L471 AbstractCegarLoop]: Abstraction has 1901 states and 2973 transitions. [2024-11-28 03:13:56,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-28 03:13:56,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2973 transitions. [2024-11-28 03:13:56,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-28 03:13:56,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:56,833 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:56,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:13:56,834 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:56,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:56,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1990953894, now seen corresponding path program 1 times [2024-11-28 03:13:56,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:56,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708401066] [2024-11-28 03:13:56,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:56,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:57,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:13:57,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:57,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708401066] [2024-11-28 03:13:57,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708401066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:57,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:57,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:13:57,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389429988] [2024-11-28 03:13:57,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:57,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:13:57,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:57,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:13:57,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:13:57,148 INFO L87 Difference]: Start difference. First operand 1901 states and 2973 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:13:57,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:57,389 INFO L93 Difference]: Finished difference Result 2929 states and 4564 transitions. [2024-11-28 03:13:57,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:13:57,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 230 [2024-11-28 03:13:57,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:57,405 INFO L225 Difference]: With dead ends: 2929 [2024-11-28 03:13:57,405 INFO L226 Difference]: Without dead ends: 2319 [2024-11-28 03:13:57,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:13:57,410 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 131 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:57,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 595 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:13:57,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2024-11-28 03:13:57,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2233. [2024-11-28 03:13:57,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2233 states, 1588 states have (on average 1.420654911838791) internal successors, (2256), 1604 states have internal predecessors, (2256), 607 states have call successors, (607), 37 states have call predecessors, (607), 37 states have return successors, (607), 591 states have call predecessors, (607), 607 states have call successors, (607) [2024-11-28 03:13:57,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2233 states to 2233 states and 3470 transitions. [2024-11-28 03:13:57,719 INFO L78 Accepts]: Start accepts. Automaton has 2233 states and 3470 transitions. Word has length 230 [2024-11-28 03:13:57,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:57,720 INFO L471 AbstractCegarLoop]: Abstraction has 2233 states and 3470 transitions. [2024-11-28 03:13:57,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:13:57,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2233 states and 3470 transitions. [2024-11-28 03:13:57,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-28 03:13:57,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:57,723 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:57,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:13:57,723 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:57,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:57,724 INFO L85 PathProgramCache]: Analyzing trace with hash 687984988, now seen corresponding path program 1 times [2024-11-28 03:13:57,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:57,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182640264] [2024-11-28 03:13:57,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:57,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:24,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:14:24,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:24,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182640264] [2024-11-28 03:14:24,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182640264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:24,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:24,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:14:24,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093109786] [2024-11-28 03:14:24,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:24,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:14:24,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:24,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:14:24,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:14:24,544 INFO L87 Difference]: Start difference. First operand 2233 states and 3470 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:14:32,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:32,437 INFO L93 Difference]: Finished difference Result 5589 states and 8531 transitions. [2024-11-28 03:14:32,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 03:14:32,438 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 230 [2024-11-28 03:14:32,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:32,460 INFO L225 Difference]: With dead ends: 5589 [2024-11-28 03:14:32,460 INFO L226 Difference]: Without dead ends: 4767 [2024-11-28 03:14:32,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 03:14:32,466 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 791 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:32,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 818 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:14:32,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4767 states. [2024-11-28 03:14:32,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4767 to 2231. [2024-11-28 03:14:32,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 1586 states have (on average 1.4211853720050442) internal successors, (2254), 1602 states have internal predecessors, (2254), 607 states have call successors, (607), 37 states have call predecessors, (607), 37 states have return successors, (607), 591 states have call predecessors, (607), 607 states have call successors, (607) [2024-11-28 03:14:32,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 3468 transitions. [2024-11-28 03:14:32,844 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 3468 transitions. Word has length 230 [2024-11-28 03:14:32,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:32,845 INFO L471 AbstractCegarLoop]: Abstraction has 2231 states and 3468 transitions. [2024-11-28 03:14:32,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:14:32,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 3468 transitions. [2024-11-28 03:14:32,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-28 03:14:32,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:32,849 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:32,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:14:32,849 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:32,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:32,850 INFO L85 PathProgramCache]: Analyzing trace with hash 302010152, now seen corresponding path program 1 times [2024-11-28 03:14:32,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:32,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571585315] [2024-11-28 03:14:32,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:32,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:49,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:14:49,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:49,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571585315] [2024-11-28 03:14:49,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571585315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:49,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:49,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 03:14:49,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839824672] [2024-11-28 03:14:49,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:49,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:14:49,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:49,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:14:49,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:14:49,482 INFO L87 Difference]: Start difference. First operand 2231 states and 3468 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 3 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-11-28 03:14:56,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:56,445 INFO L93 Difference]: Finished difference Result 5314 states and 8132 transitions. [2024-11-28 03:14:56,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:14:56,446 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 3 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 230 [2024-11-28 03:14:56,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:56,470 INFO L225 Difference]: With dead ends: 5314 [2024-11-28 03:14:56,470 INFO L226 Difference]: Without dead ends: 4161 [2024-11-28 03:14:56,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=236, Invalid=694, Unknown=0, NotChecked=0, Total=930 [2024-11-28 03:14:56,478 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 1354 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:56,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 845 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 03:14:56,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4161 states. [2024-11-28 03:14:56,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4161 to 2243. [2024-11-28 03:14:56,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2243 states, 1598 states have (on average 1.4224030037546933) internal successors, (2273), 1614 states have internal predecessors, (2273), 607 states have call successors, (607), 37 states have call predecessors, (607), 37 states have return successors, (607), 591 states have call predecessors, (607), 607 states have call successors, (607) [2024-11-28 03:14:56,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 3487 transitions. [2024-11-28 03:14:56,914 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 3487 transitions. Word has length 230 [2024-11-28 03:14:56,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:56,914 INFO L471 AbstractCegarLoop]: Abstraction has 2243 states and 3487 transitions. [2024-11-28 03:14:56,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 3 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-11-28 03:14:56,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 3487 transitions. [2024-11-28 03:14:56,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-28 03:14:56,918 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:56,919 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:56,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:14:56,919 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:56,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:56,920 INFO L85 PathProgramCache]: Analyzing trace with hash 560175590, now seen corresponding path program 1 times [2024-11-28 03:14:56,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:56,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59724250] [2024-11-28 03:14:56,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:56,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-28 03:15:38,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:38,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59724250] [2024-11-28 03:15:38,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59724250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:38,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:38,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:15:38,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142655167] [2024-11-28 03:15:38,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:38,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:15:38,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:38,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:15:38,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:15:38,361 INFO L87 Difference]: Start difference. First operand 2243 states and 3487 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:15:48,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:15:55,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:55,070 INFO L93 Difference]: Finished difference Result 5849 states and 8968 transitions. [2024-11-28 03:15:55,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:15:55,071 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 230 [2024-11-28 03:15:55,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:55,095 INFO L225 Difference]: With dead ends: 5849 [2024-11-28 03:15:55,095 INFO L226 Difference]: Without dead ends: 4191 [2024-11-28 03:15:55,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:15:55,104 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 955 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 114 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:55,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 787 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1087 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2024-11-28 03:15:55,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4191 states. [2024-11-28 03:15:55,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4191 to 2280. [2024-11-28 03:15:55,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2280 states, 1635 states have (on average 1.4262996941896025) internal successors, (2332), 1651 states have internal predecessors, (2332), 607 states have call successors, (607), 37 states have call predecessors, (607), 37 states have return successors, (607), 591 states have call predecessors, (607), 607 states have call successors, (607) [2024-11-28 03:15:55,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2280 states to 2280 states and 3546 transitions. [2024-11-28 03:15:55,611 INFO L78 Accepts]: Start accepts. Automaton has 2280 states and 3546 transitions. Word has length 230 [2024-11-28 03:15:55,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:55,612 INFO L471 AbstractCegarLoop]: Abstraction has 2280 states and 3546 transitions. [2024-11-28 03:15:55,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-28 03:15:55,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2280 states and 3546 transitions. [2024-11-28 03:15:55,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-28 03:15:55,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:55,617 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:55,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:15:55,618 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:55,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:55,619 INFO L85 PathProgramCache]: Analyzing trace with hash -719058202, now seen corresponding path program 1 times [2024-11-28 03:15:55,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:55,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500524482] [2024-11-28 03:15:55,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:55,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat