./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC --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 604c6c2a15818b6dd7ce9091536365088029686ca538bc3be14228dcbd3a3830 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:15:04,286 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:15:04,388 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:15:04,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:15:04,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:15:04,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:15:04,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:15:04,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:15:04,425 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:15:04,425 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:15:04,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:15:04,425 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:15:04,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:15:04,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:15:04,425 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:15:04,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:15:04,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:15:04,428 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:15:04,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:15:04,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:15:04,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:15:04,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:15:04,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:15:04,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:15:04,429 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:15:04,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:15:04,429 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:15:04,429 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:15:04,429 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:15:04,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:15:04,429 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:15:04,429 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:15:04,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:15:04,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:15:04,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:15:04,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:15:04,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:15:04,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:15:04,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:15:04,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:15:04,430 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:15:04,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:15:04,431 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:15:04,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:15:04,431 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:15:04,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:15:04,433 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:15:04,434 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:15:04,434 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_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC 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 -> 604c6c2a15818b6dd7ce9091536365088029686ca538bc3be14228dcbd3a3830 [2024-11-23 23:15:04,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:15:04,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:15:04,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:15:04,796 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:15:04,796 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:15:04,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-23 23:15:07,739 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC/data/7bb14178a/41549c23aab5410d9b570d3332e9f740/FLAG961858617 [2024-11-23 23:15:08,256 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:15:08,257 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-23 23:15:08,295 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC/data/7bb14178a/41549c23aab5410d9b570d3332e9f740/FLAG961858617 [2024-11-23 23:15:08,319 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC/data/7bb14178a/41549c23aab5410d9b570d3332e9f740 [2024-11-23 23:15:08,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:15:08,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:15:08,325 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:15:08,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:15:08,333 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:15:08,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:15:08" (1/1) ... [2024-11-23 23:15:08,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37da7b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:08, skipping insertion in model container [2024-11-23 23:15:08,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:15:08" (1/1) ... [2024-11-23 23:15:08,442 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:15:09,244 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_d343d6d8-a283-4474-8dac-4b9e41442d91/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[34536,34549] [2024-11-23 23:15:09,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:15:09,438 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:15:09,746 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_d343d6d8-a283-4474-8dac-4b9e41442d91/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[34536,34549] [2024-11-23 23:15:09,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:15:09,922 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:15:09,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09 WrapperNode [2024-11-23 23:15:09,924 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:15:09,926 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:15:09,927 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:15:09,927 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:15:09,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09" (1/1) ... [2024-11-23 23:15:09,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09" (1/1) ... [2024-11-23 23:15:10,110 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3048 [2024-11-23 23:15:10,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:15:10,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:15:10,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:15:10,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:15:10,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09" (1/1) ... [2024-11-23 23:15:10,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09" (1/1) ... [2024-11-23 23:15:10,140 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09" (1/1) ... [2024-11-23 23:15:10,237 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]. [2024-11-23 23:15:10,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09" (1/1) ... [2024-11-23 23:15:10,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09" (1/1) ... [2024-11-23 23:15:10,284 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09" (1/1) ... [2024-11-23 23:15:10,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09" (1/1) ... [2024-11-23 23:15:10,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09" (1/1) ... [2024-11-23 23:15:10,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09" (1/1) ... [2024-11-23 23:15:10,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09" (1/1) ... [2024-11-23 23:15:10,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:15:10,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:15:10,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:15:10,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:15:10,388 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09" (1/1) ... [2024-11-23 23:15:10,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:15:10,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:15:10,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:15:10,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343d6d8-a283-4474-8dac-4b9e41442d91/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:15:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:15:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:15:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:15:10,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:15:10,710 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:15:10,712 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:15:14,419 INFO L? ?]: Removed 206 outVars from TransFormulas that were not future-live. [2024-11-23 23:15:14,420 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:15:14,463 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:15:14,463 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:15:14,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:15:14 BoogieIcfgContainer [2024-11-23 23:15:14,464 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:15:14,472 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:15:14,472 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:15:14,478 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:15:14,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:15:08" (1/3) ... [2024-11-23 23:15:14,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d756afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:15:14, skipping insertion in model container [2024-11-23 23:15:14,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:09" (2/3) ... [2024-11-23 23:15:14,480 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d756afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:15:14, skipping insertion in model container [2024-11-23 23:15:14,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:15:14" (3/3) ... [2024-11-23 23:15:14,483 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-23 23:15:14,502 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:15:14,507 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c that has 1 procedures, 784 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-23 23:15:14,603 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:15:14,616 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;@3171425a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:15:14,616 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:15:14,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 784 states, 782 states have (on average 1.7851662404092072) internal successors, (1396), 783 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:14,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-23 23:15:14,645 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:14,646 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:14,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:14,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:14,652 INFO L85 PathProgramCache]: Analyzing trace with hash -404802235, now seen corresponding path program 1 times [2024-11-23 23:15:14,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:14,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904697678] [2024-11-23 23:15:14,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:14,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:16,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:16,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:16,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904697678] [2024-11-23 23:15:16,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904697678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:16,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:16,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:15:16,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59893357] [2024-11-23 23:15:16,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:16,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:15:16,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:16,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:15:16,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:16,082 INFO L87 Difference]: Start difference. First operand has 784 states, 782 states have (on average 1.7851662404092072) internal successors, (1396), 783 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:16,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:16,465 INFO L93 Difference]: Finished difference Result 1438 states and 2532 transitions. [2024-11-23 23:15:16,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:15:16,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 322 [2024-11-23 23:15:16,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:16,485 INFO L225 Difference]: With dead ends: 1438 [2024-11-23 23:15:16,485 INFO L226 Difference]: Without dead ends: 1249 [2024-11-23 23:15:16,489 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 [2024-11-23 23:15:16,492 INFO L435 NwaCegarLoop]: 1335 mSDtfsCounter, 830 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 2419 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:16,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 2419 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:15:16,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2024-11-23 23:15:16,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1247. [2024-11-23 23:15:16,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1246 states have (on average 1.5585874799357946) internal successors, (1942), 1246 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:16,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1942 transitions. [2024-11-23 23:15:16,592 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1942 transitions. Word has length 322 [2024-11-23 23:15:16,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:16,594 INFO L471 AbstractCegarLoop]: Abstraction has 1247 states and 1942 transitions. [2024-11-23 23:15:16,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:16,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1942 transitions. [2024-11-23 23:15:16,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-23 23:15:16,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:16,602 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:16,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:15:16,603 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:16,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:16,604 INFO L85 PathProgramCache]: Analyzing trace with hash -177646589, now seen corresponding path program 1 times [2024-11-23 23:15:16,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:16,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178124292] [2024-11-23 23:15:16,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:16,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:18,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:18,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:18,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178124292] [2024-11-23 23:15:18,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178124292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:18,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:18,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:15:18,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751472802] [2024-11-23 23:15:18,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:18,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:15:18,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:18,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:15:18,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:15:18,563 INFO L87 Difference]: Start difference. First operand 1247 states and 1942 transitions. Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:18,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:18,817 INFO L93 Difference]: Finished difference Result 4849 states and 7525 transitions. [2024-11-23 23:15:18,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:15:18,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 322 [2024-11-23 23:15:18,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:18,832 INFO L225 Difference]: With dead ends: 4849 [2024-11-23 23:15:18,832 INFO L226 Difference]: Without dead ends: 3649 [2024-11-23 23:15:18,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:15:18,836 INFO L435 NwaCegarLoop]: 1905 mSDtfsCounter, 2259 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 4195 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:18,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2259 Valid, 4195 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:15:18,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3649 states. [2024-11-23 23:15:18,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3649 to 2451. [2024-11-23 23:15:18,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2451 states, 2450 states have (on average 1.5497959183673469) internal successors, (3797), 2450 states have internal predecessors, (3797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:18,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 3797 transitions. [2024-11-23 23:15:18,945 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 3797 transitions. Word has length 322 [2024-11-23 23:15:18,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:18,947 INFO L471 AbstractCegarLoop]: Abstraction has 2451 states and 3797 transitions. [2024-11-23 23:15:18,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:18,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 3797 transitions. [2024-11-23 23:15:18,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-23 23:15:18,959 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:18,960 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:18,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:15:18,960 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:18,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:18,965 INFO L85 PathProgramCache]: Analyzing trace with hash 888222084, now seen corresponding path program 1 times [2024-11-23 23:15:18,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:18,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437952277] [2024-11-23 23:15:18,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:18,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:19,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:19,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:19,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437952277] [2024-11-23 23:15:19,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437952277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:19,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:19,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:15:19,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913461284] [2024-11-23 23:15:19,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:19,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:15:19,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:19,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:15:19,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:19,360 INFO L87 Difference]: Start difference. First operand 2451 states and 3797 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:19,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:19,535 INFO L93 Difference]: Finished difference Result 7134 states and 11008 transitions. [2024-11-23 23:15:19,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:15:19,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 324 [2024-11-23 23:15:19,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:19,553 INFO L225 Difference]: With dead ends: 7134 [2024-11-23 23:15:19,553 INFO L226 Difference]: Without dead ends: 4808 [2024-11-23 23:15:19,557 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 [2024-11-23 23:15:19,562 INFO L435 NwaCegarLoop]: 2361 mSDtfsCounter, 1077 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 3515 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:19,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 3515 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:15:19,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4808 states. [2024-11-23 23:15:19,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4808 to 4806. [2024-11-23 23:15:19,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4806 states, 4805 states have (on average 1.5404786680541103) internal successors, (7402), 4805 states have internal predecessors, (7402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:19,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 7402 transitions. [2024-11-23 23:15:19,701 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 7402 transitions. Word has length 324 [2024-11-23 23:15:19,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:19,702 INFO L471 AbstractCegarLoop]: Abstraction has 4806 states and 7402 transitions. [2024-11-23 23:15:19,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:19,702 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 7402 transitions. [2024-11-23 23:15:19,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-23 23:15:19,715 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:19,715 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:19,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:15:19,716 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:19,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:19,717 INFO L85 PathProgramCache]: Analyzing trace with hash -844976183, now seen corresponding path program 1 times [2024-11-23 23:15:19,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:19,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623546497] [2024-11-23 23:15:19,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:19,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:19,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:19,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:19,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623546497] [2024-11-23 23:15:19,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623546497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:19,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:19,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:15:19,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397689222] [2024-11-23 23:15:19,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:19,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:15:19,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:19,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:15:19,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:19,984 INFO L87 Difference]: Start difference. First operand 4806 states and 7402 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:20,189 INFO L93 Difference]: Finished difference Result 14351 states and 22085 transitions. [2024-11-23 23:15:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:15:20,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 324 [2024-11-23 23:15:20,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:20,271 INFO L225 Difference]: With dead ends: 14351 [2024-11-23 23:15:20,271 INFO L226 Difference]: Without dead ends: 9583 [2024-11-23 23:15:20,275 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 [2024-11-23 23:15:20,277 INFO L435 NwaCegarLoop]: 2414 mSDtfsCounter, 1204 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 3619 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:20,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 3619 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:15:20,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9583 states. [2024-11-23 23:15:20,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9583 to 4825. [2024-11-23 23:15:20,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4825 states, 4824 states have (on average 1.5404228855721394) internal successors, (7431), 4824 states have internal predecessors, (7431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:20,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4825 states to 4825 states and 7431 transitions. [2024-11-23 23:15:20,507 INFO L78 Accepts]: Start accepts. Automaton has 4825 states and 7431 transitions. Word has length 324 [2024-11-23 23:15:20,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:20,508 INFO L471 AbstractCegarLoop]: Abstraction has 4825 states and 7431 transitions. [2024-11-23 23:15:20,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:20,508 INFO L276 IsEmpty]: Start isEmpty. Operand 4825 states and 7431 transitions. [2024-11-23 23:15:20,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2024-11-23 23:15:20,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:20,522 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:20,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:15:20,523 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:20,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:20,524 INFO L85 PathProgramCache]: Analyzing trace with hash 167963603, now seen corresponding path program 1 times [2024-11-23 23:15:20,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:20,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274793058] [2024-11-23 23:15:20,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:20,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:20,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:20,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:20,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274793058] [2024-11-23 23:15:20,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274793058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:20,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:20,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:15:20,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701721467] [2024-11-23 23:15:20,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:20,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:15:20,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:20,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:15:20,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:20,827 INFO L87 Difference]: Start difference. First operand 4825 states and 7431 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:20,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:20,945 INFO L93 Difference]: Finished difference Result 9612 states and 14792 transitions. [2024-11-23 23:15:20,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:15:20,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2024-11-23 23:15:20,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:20,964 INFO L225 Difference]: With dead ends: 9612 [2024-11-23 23:15:20,965 INFO L226 Difference]: Without dead ends: 4843 [2024-11-23 23:15:20,970 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 [2024-11-23 23:15:20,971 INFO L435 NwaCegarLoop]: 1228 mSDtfsCounter, 5 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:20,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2441 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:15:20,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4843 states. [2024-11-23 23:15:21,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4843 to 4843. [2024-11-23 23:15:21,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4843 states, 4842 states have (on average 1.5390334572490707) internal successors, (7452), 4842 states have internal predecessors, (7452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:21,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 7452 transitions. [2024-11-23 23:15:21,126 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 7452 transitions. Word has length 325 [2024-11-23 23:15:21,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:21,126 INFO L471 AbstractCegarLoop]: Abstraction has 4843 states and 7452 transitions. [2024-11-23 23:15:21,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:21,127 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 7452 transitions. [2024-11-23 23:15:21,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-23 23:15:21,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:21,138 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:21,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:15:21,138 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:21,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:21,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1702930433, now seen corresponding path program 1 times [2024-11-23 23:15:21,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:21,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171438542] [2024-11-23 23:15:21,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:21,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:21,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:21,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:21,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171438542] [2024-11-23 23:15:21,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171438542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:21,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:21,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:15:21,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659113579] [2024-11-23 23:15:21,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:21,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:15:21,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:21,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:15:21,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:21,608 INFO L87 Difference]: Start difference. First operand 4843 states and 7452 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:21,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:21,829 INFO L93 Difference]: Finished difference Result 14006 states and 21462 transitions. [2024-11-23 23:15:21,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:15:21,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2024-11-23 23:15:21,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:21,866 INFO L225 Difference]: With dead ends: 14006 [2024-11-23 23:15:21,867 INFO L226 Difference]: Without dead ends: 9404 [2024-11-23 23:15:21,878 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 [2024-11-23 23:15:21,879 INFO L435 NwaCegarLoop]: 2366 mSDtfsCounter, 1071 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:21,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 3520 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:15:21,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9404 states. [2024-11-23 23:15:22,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9404 to 9402. [2024-11-23 23:15:22,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9402 states, 9401 states have (on average 1.527603446441868) internal successors, (14361), 9401 states have internal predecessors, (14361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:22,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9402 states to 9402 states and 14361 transitions. [2024-11-23 23:15:22,178 INFO L78 Accepts]: Start accepts. Automaton has 9402 states and 14361 transitions. Word has length 326 [2024-11-23 23:15:22,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:22,179 INFO L471 AbstractCegarLoop]: Abstraction has 9402 states and 14361 transitions. [2024-11-23 23:15:22,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:22,180 INFO L276 IsEmpty]: Start isEmpty. Operand 9402 states and 14361 transitions. [2024-11-23 23:15:22,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-23 23:15:22,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:22,198 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:22,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:15:22,198 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:22,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:22,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1284193380, now seen corresponding path program 1 times [2024-11-23 23:15:22,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:22,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149162629] [2024-11-23 23:15:22,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:22,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:23,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:23,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:23,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149162629] [2024-11-23 23:15:23,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149162629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:23,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:23,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:15:23,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161200951] [2024-11-23 23:15:23,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:23,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:15:23,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:23,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:15:23,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:15:23,700 INFO L87 Difference]: Start difference. First operand 9402 states and 14361 transitions. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:24,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:24,008 INFO L93 Difference]: Finished difference Result 27273 states and 41448 transitions. [2024-11-23 23:15:24,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:15:24,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2024-11-23 23:15:24,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:24,053 INFO L225 Difference]: With dead ends: 27273 [2024-11-23 23:15:24,053 INFO L226 Difference]: Without dead ends: 18407 [2024-11-23 23:15:24,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:15:24,066 INFO L435 NwaCegarLoop]: 2376 mSDtfsCounter, 1173 mSDsluCounter, 3581 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 5957 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:24,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 5957 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:15:24,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18407 states. [2024-11-23 23:15:24,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18407 to 9637. [2024-11-23 23:15:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9637 states, 9636 states have (on average 1.5307181403071815) internal successors, (14750), 9636 states have internal predecessors, (14750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:24,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9637 states to 9637 states and 14750 transitions. [2024-11-23 23:15:24,404 INFO L78 Accepts]: Start accepts. Automaton has 9637 states and 14750 transitions. Word has length 326 [2024-11-23 23:15:24,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:24,404 INFO L471 AbstractCegarLoop]: Abstraction has 9637 states and 14750 transitions. [2024-11-23 23:15:24,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:24,405 INFO L276 IsEmpty]: Start isEmpty. Operand 9637 states and 14750 transitions. [2024-11-23 23:15:24,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-23 23:15:24,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:24,421 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:24,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:15:24,421 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:24,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:24,422 INFO L85 PathProgramCache]: Analyzing trace with hash -441165384, now seen corresponding path program 1 times [2024-11-23 23:15:24,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:24,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707122084] [2024-11-23 23:15:24,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:24,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:24,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:24,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:24,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707122084] [2024-11-23 23:15:24,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707122084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:24,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:24,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:15:24,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407906523] [2024-11-23 23:15:24,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:24,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:15:24,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:24,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:15:24,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:24,659 INFO L87 Difference]: Start difference. First operand 9637 states and 14750 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:24,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:24,847 INFO L93 Difference]: Finished difference Result 20933 states and 32236 transitions. [2024-11-23 23:15:24,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:15:24,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 327 [2024-11-23 23:15:24,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:24,877 INFO L225 Difference]: With dead ends: 20933 [2024-11-23 23:15:24,877 INFO L226 Difference]: Without dead ends: 13047 [2024-11-23 23:15:24,886 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 [2024-11-23 23:15:24,887 INFO L435 NwaCegarLoop]: 1575 mSDtfsCounter, 547 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 2578 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:24,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 2578 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:15:24,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13047 states. [2024-11-23 23:15:25,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13047 to 11621. [2024-11-23 23:15:25,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11621 states, 11620 states have (on average 1.5506024096385542) internal successors, (18018), 11620 states have internal predecessors, (18018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:25,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11621 states to 11621 states and 18018 transitions. [2024-11-23 23:15:25,365 INFO L78 Accepts]: Start accepts. Automaton has 11621 states and 18018 transitions. Word has length 327 [2024-11-23 23:15:25,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:25,365 INFO L471 AbstractCegarLoop]: Abstraction has 11621 states and 18018 transitions. [2024-11-23 23:15:25,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:25,366 INFO L276 IsEmpty]: Start isEmpty. Operand 11621 states and 18018 transitions. [2024-11-23 23:15:25,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-11-23 23:15:25,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:25,387 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:25,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:15:25,387 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:25,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:25,388 INFO L85 PathProgramCache]: Analyzing trace with hash 389850622, now seen corresponding path program 1 times [2024-11-23 23:15:25,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:25,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430412462] [2024-11-23 23:15:25,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:25,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:25,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:25,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:25,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430412462] [2024-11-23 23:15:25,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430412462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:25,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:25,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:15:25,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989867188] [2024-11-23 23:15:25,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:25,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:15:25,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:25,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:15:25,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:25,676 INFO L87 Difference]: Start difference. First operand 11621 states and 18018 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:25,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:25,866 INFO L93 Difference]: Finished difference Result 33301 states and 51331 transitions. [2024-11-23 23:15:25,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:15:25,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 328 [2024-11-23 23:15:25,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:25,917 INFO L225 Difference]: With dead ends: 33301 [2024-11-23 23:15:25,917 INFO L226 Difference]: Without dead ends: 22479 [2024-11-23 23:15:25,931 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 [2024-11-23 23:15:25,932 INFO L435 NwaCegarLoop]: 2276 mSDtfsCounter, 1069 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 3477 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:25,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 3477 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:15:25,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22479 states. [2024-11-23 23:15:26,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22479 to 11725. [2024-11-23 23:15:26,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11725 states, 11724 states have (on average 1.5490446946434664) internal successors, (18161), 11724 states have internal predecessors, (18161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:26,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11725 states to 11725 states and 18161 transitions. [2024-11-23 23:15:26,306 INFO L78 Accepts]: Start accepts. Automaton has 11725 states and 18161 transitions. Word has length 328 [2024-11-23 23:15:26,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:26,307 INFO L471 AbstractCegarLoop]: Abstraction has 11725 states and 18161 transitions. [2024-11-23 23:15:26,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:26,307 INFO L276 IsEmpty]: Start isEmpty. Operand 11725 states and 18161 transitions. [2024-11-23 23:15:26,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-23 23:15:26,325 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:26,325 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:26,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:15:26,325 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:26,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:26,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1035804838, now seen corresponding path program 1 times [2024-11-23 23:15:26,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:26,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706125130] [2024-11-23 23:15:26,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:26,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:26,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:26,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:26,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706125130] [2024-11-23 23:15:26,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706125130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:26,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:26,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:15:26,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379207811] [2024-11-23 23:15:26,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:26,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:15:26,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:26,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:15:26,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:26,606 INFO L87 Difference]: Start difference. First operand 11725 states and 18161 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:26,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:26,718 INFO L93 Difference]: Finished difference Result 22679 states and 34980 transitions. [2024-11-23 23:15:26,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:15:26,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 329 [2024-11-23 23:15:26,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:26,744 INFO L225 Difference]: With dead ends: 22679 [2024-11-23 23:15:26,744 INFO L226 Difference]: Without dead ends: 11850 [2024-11-23 23:15:26,755 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 [2024-11-23 23:15:26,757 INFO L435 NwaCegarLoop]: 1225 mSDtfsCounter, 5 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:26,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2434 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:15:26,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11850 states. [2024-11-23 23:15:26,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11850 to 11850. [2024-11-23 23:15:26,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11850 states, 11849 states have (on average 1.5450248966157483) internal successors, (18307), 11849 states have internal predecessors, (18307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:27,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11850 states to 11850 states and 18307 transitions. [2024-11-23 23:15:27,016 INFO L78 Accepts]: Start accepts. Automaton has 11850 states and 18307 transitions. Word has length 329 [2024-11-23 23:15:27,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:27,017 INFO L471 AbstractCegarLoop]: Abstraction has 11850 states and 18307 transitions. [2024-11-23 23:15:27,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:27,017 INFO L276 IsEmpty]: Start isEmpty. Operand 11850 states and 18307 transitions. [2024-11-23 23:15:27,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-11-23 23:15:27,033 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:27,034 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:27,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:15:27,035 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:27,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:27,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1721370038, now seen corresponding path program 1 times [2024-11-23 23:15:27,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:27,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843143866] [2024-11-23 23:15:27,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:27,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:27,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:27,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:27,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843143866] [2024-11-23 23:15:27,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843143866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:27,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:27,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:15:27,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608426551] [2024-11-23 23:15:27,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:27,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:15:27,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:27,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:15:27,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:27,265 INFO L87 Difference]: Start difference. First operand 11850 states and 18307 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:27,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:27,504 INFO L93 Difference]: Finished difference Result 27282 states and 42513 transitions. [2024-11-23 23:15:27,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:15:27,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2024-11-23 23:15:27,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:27,545 INFO L225 Difference]: With dead ends: 27282 [2024-11-23 23:15:27,545 INFO L226 Difference]: Without dead ends: 17724 [2024-11-23 23:15:27,558 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 [2024-11-23 23:15:27,558 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 649 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:27,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 2590 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:15:27,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17724 states. [2024-11-23 23:15:27,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17724 to 15482. [2024-11-23 23:15:27,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15482 states, 15481 states have (on average 1.5683095407273433) internal successors, (24279), 15481 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:27,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15482 states to 15482 states and 24279 transitions. [2024-11-23 23:15:27,921 INFO L78 Accepts]: Start accepts. Automaton has 15482 states and 24279 transitions. Word has length 330 [2024-11-23 23:15:27,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:27,921 INFO L471 AbstractCegarLoop]: Abstraction has 15482 states and 24279 transitions. [2024-11-23 23:15:27,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:27,922 INFO L276 IsEmpty]: Start isEmpty. Operand 15482 states and 24279 transitions. [2024-11-23 23:15:27,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-11-23 23:15:27,938 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:27,938 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:27,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:15:27,939 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:27,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:27,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1963239791, now seen corresponding path program 1 times [2024-11-23 23:15:27,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:27,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814702002] [2024-11-23 23:15:27,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:27,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:28,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:28,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:28,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814702002] [2024-11-23 23:15:28,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814702002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:28,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:28,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:15:28,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919621920] [2024-11-23 23:15:28,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:28,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:15:28,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:28,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:15:28,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:15:28,976 INFO L87 Difference]: Start difference. First operand 15482 states and 24279 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:29,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:29,346 INFO L93 Difference]: Finished difference Result 60331 states and 94485 transitions. [2024-11-23 23:15:29,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:15:29,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2024-11-23 23:15:29,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:29,459 INFO L225 Difference]: With dead ends: 60331 [2024-11-23 23:15:29,459 INFO L226 Difference]: Without dead ends: 45048 [2024-11-23 23:15:29,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:15:29,481 INFO L435 NwaCegarLoop]: 2302 mSDtfsCounter, 2248 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 4892 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:29,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2248 Valid, 4892 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:15:29,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45048 states. [2024-11-23 23:15:30,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45048 to 30284. [2024-11-23 23:15:30,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30284 states, 30283 states have (on average 1.5598190403856949) internal successors, (47236), 30283 states have internal predecessors, (47236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:30,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30284 states to 30284 states and 47236 transitions. [2024-11-23 23:15:30,221 INFO L78 Accepts]: Start accepts. Automaton has 30284 states and 47236 transitions. Word has length 330 [2024-11-23 23:15:30,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:30,222 INFO L471 AbstractCegarLoop]: Abstraction has 30284 states and 47236 transitions. [2024-11-23 23:15:30,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:30,223 INFO L276 IsEmpty]: Start isEmpty. Operand 30284 states and 47236 transitions. [2024-11-23 23:15:30,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-23 23:15:30,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:30,260 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:30,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:15:30,260 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:30,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:30,261 INFO L85 PathProgramCache]: Analyzing trace with hash -275940351, now seen corresponding path program 1 times [2024-11-23 23:15:30,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:30,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651041064] [2024-11-23 23:15:30,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:30,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:31,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:31,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:31,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651041064] [2024-11-23 23:15:31,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651041064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:31,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:31,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:15:31,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193654312] [2024-11-23 23:15:31,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:31,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:15:31,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:31,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:15:31,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:15:31,619 INFO L87 Difference]: Start difference. First operand 30284 states and 47236 transitions. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:31,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:31,816 INFO L93 Difference]: Finished difference Result 55476 states and 86357 transitions. [2024-11-23 23:15:31,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:15:31,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 332 [2024-11-23 23:15:31,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:31,875 INFO L225 Difference]: With dead ends: 55476 [2024-11-23 23:15:31,875 INFO L226 Difference]: Without dead ends: 26673 [2024-11-23 23:15:31,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:15:31,897 INFO L435 NwaCegarLoop]: 1349 mSDtfsCounter, 99 mSDsluCounter, 2553 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 3902 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:31,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 3902 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:15:31,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26673 states. [2024-11-23 23:15:32,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26673 to 26635. [2024-11-23 23:15:32,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26635 states, 26634 states have (on average 1.5593602162649245) internal successors, (41532), 26634 states have internal predecessors, (41532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:32,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26635 states to 26635 states and 41532 transitions. [2024-11-23 23:15:32,397 INFO L78 Accepts]: Start accepts. Automaton has 26635 states and 41532 transitions. Word has length 332 [2024-11-23 23:15:32,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:32,397 INFO L471 AbstractCegarLoop]: Abstraction has 26635 states and 41532 transitions. [2024-11-23 23:15:32,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:32,398 INFO L276 IsEmpty]: Start isEmpty. Operand 26635 states and 41532 transitions. [2024-11-23 23:15:32,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-23 23:15:32,416 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:32,416 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:32,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:15:32,417 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:32,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:32,418 INFO L85 PathProgramCache]: Analyzing trace with hash -559586133, now seen corresponding path program 1 times [2024-11-23 23:15:32,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:32,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963420411] [2024-11-23 23:15:32,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:32,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:32,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:32,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:32,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963420411] [2024-11-23 23:15:32,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963420411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:32,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:32,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:15:32,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056395197] [2024-11-23 23:15:32,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:32,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:15:32,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:32,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:15:32,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:32,654 INFO L87 Difference]: Start difference. First operand 26635 states and 41532 transitions. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:32,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:32,958 INFO L93 Difference]: Finished difference Result 77021 states and 119716 transitions. [2024-11-23 23:15:32,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:15:32,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 332 [2024-11-23 23:15:32,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:33,089 INFO L225 Difference]: With dead ends: 77021 [2024-11-23 23:15:33,089 INFO L226 Difference]: Without dead ends: 51692 [2024-11-23 23:15:33,114 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 [2024-11-23 23:15:33,114 INFO L435 NwaCegarLoop]: 2328 mSDtfsCounter, 1057 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 3474 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:33,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 3474 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:15:33,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51692 states. [2024-11-23 23:15:34,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51692 to 51690. [2024-11-23 23:15:34,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51690 states, 51689 states have (on average 1.5485499816208477) internal successors, (80043), 51689 states have internal predecessors, (80043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:34,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51690 states to 51690 states and 80043 transitions. [2024-11-23 23:15:34,460 INFO L78 Accepts]: Start accepts. Automaton has 51690 states and 80043 transitions. Word has length 332 [2024-11-23 23:15:34,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:34,460 INFO L471 AbstractCegarLoop]: Abstraction has 51690 states and 80043 transitions. [2024-11-23 23:15:34,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:34,461 INFO L276 IsEmpty]: Start isEmpty. Operand 51690 states and 80043 transitions. [2024-11-23 23:15:34,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-23 23:15:34,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:34,505 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:34,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:15:34,505 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:34,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:34,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1241677460, now seen corresponding path program 1 times [2024-11-23 23:15:34,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:34,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378321716] [2024-11-23 23:15:34,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:34,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:34,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:34,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:34,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378321716] [2024-11-23 23:15:34,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378321716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:34,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:34,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:15:34,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673685735] [2024-11-23 23:15:34,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:34,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:15:34,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:34,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:15:34,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:34,711 INFO L87 Difference]: Start difference. First operand 51690 states and 80043 transitions. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:35,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:35,234 INFO L93 Difference]: Finished difference Result 111364 states and 172320 transitions. [2024-11-23 23:15:35,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:15:35,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 333 [2024-11-23 23:15:35,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:35,357 INFO L225 Difference]: With dead ends: 111364 [2024-11-23 23:15:35,358 INFO L226 Difference]: Without dead ends: 81516 [2024-11-23 23:15:35,399 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 [2024-11-23 23:15:35,400 INFO L435 NwaCegarLoop]: 2076 mSDtfsCounter, 1178 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:35,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 3279 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:15:35,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81516 states. [2024-11-23 23:15:36,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81516 to 51690. [2024-11-23 23:15:36,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51690 states, 51689 states have (on average 1.5482791309562962) internal successors, (80029), 51689 states have internal predecessors, (80029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:36,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51690 states to 51690 states and 80029 transitions. [2024-11-23 23:15:36,912 INFO L78 Accepts]: Start accepts. Automaton has 51690 states and 80029 transitions. Word has length 333 [2024-11-23 23:15:36,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:36,912 INFO L471 AbstractCegarLoop]: Abstraction has 51690 states and 80029 transitions. [2024-11-23 23:15:36,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:36,912 INFO L276 IsEmpty]: Start isEmpty. Operand 51690 states and 80029 transitions. [2024-11-23 23:15:36,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-23 23:15:36,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:36,936 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:36,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:15:36,937 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:36,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:36,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1472144975, now seen corresponding path program 1 times [2024-11-23 23:15:36,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:36,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135515550] [2024-11-23 23:15:36,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:36,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:37,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:37,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135515550] [2024-11-23 23:15:37,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135515550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:37,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:37,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:15:37,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963495248] [2024-11-23 23:15:37,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:37,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:15:37,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:37,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:15:37,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:37,123 INFO L87 Difference]: Start difference. First operand 51690 states and 80029 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:37,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:37,550 INFO L93 Difference]: Finished difference Result 125705 states and 196846 transitions. [2024-11-23 23:15:37,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:15:37,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 334 [2024-11-23 23:15:37,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:37,653 INFO L225 Difference]: With dead ends: 125705 [2024-11-23 23:15:37,653 INFO L226 Difference]: Without dead ends: 81340 [2024-11-23 23:15:37,693 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 [2024-11-23 23:15:37,695 INFO L435 NwaCegarLoop]: 1605 mSDtfsCounter, 625 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 2537 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:37,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 2537 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:15:37,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81340 states. [2024-11-23 23:15:39,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81340 to 73418. [2024-11-23 23:15:39,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73418 states, 73417 states have (on average 1.5687511066919106) internal successors, (115173), 73417 states have internal predecessors, (115173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:39,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73418 states to 73418 states and 115173 transitions. [2024-11-23 23:15:39,914 INFO L78 Accepts]: Start accepts. Automaton has 73418 states and 115173 transitions. Word has length 334 [2024-11-23 23:15:39,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:39,914 INFO L471 AbstractCegarLoop]: Abstraction has 73418 states and 115173 transitions. [2024-11-23 23:15:39,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:39,914 INFO L276 IsEmpty]: Start isEmpty. Operand 73418 states and 115173 transitions. [2024-11-23 23:15:39,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-23 23:15:39,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:39,941 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:39,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:15:39,941 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:39,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:39,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1279422618, now seen corresponding path program 1 times [2024-11-23 23:15:39,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:39,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53129646] [2024-11-23 23:15:39,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:39,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:40,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:40,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:40,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53129646] [2024-11-23 23:15:40,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53129646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:40,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:40,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:15:40,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769508958] [2024-11-23 23:15:40,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:40,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:15:40,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:40,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:15:40,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:40,383 INFO L87 Difference]: Start difference. First operand 73418 states and 115173 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:41,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:41,331 INFO L93 Difference]: Finished difference Result 209083 states and 327642 transitions. [2024-11-23 23:15:41,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:15:41,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 334 [2024-11-23 23:15:41,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:41,514 INFO L225 Difference]: With dead ends: 209083 [2024-11-23 23:15:41,514 INFO L226 Difference]: Without dead ends: 136548 [2024-11-23 23:15:41,549 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 [2024-11-23 23:15:41,550 INFO L435 NwaCegarLoop]: 2300 mSDtfsCounter, 1043 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 3444 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:41,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 3444 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:15:41,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136548 states. [2024-11-23 23:15:43,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136548 to 136546. [2024-11-23 23:15:43,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136546 states, 136545 states have (on average 1.5583800212384196) internal successors, (212789), 136545 states have internal predecessors, (212789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:44,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136546 states to 136546 states and 212789 transitions. [2024-11-23 23:15:44,142 INFO L78 Accepts]: Start accepts. Automaton has 136546 states and 212789 transitions. Word has length 334 [2024-11-23 23:15:44,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:44,142 INFO L471 AbstractCegarLoop]: Abstraction has 136546 states and 212789 transitions. [2024-11-23 23:15:44,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:44,142 INFO L276 IsEmpty]: Start isEmpty. Operand 136546 states and 212789 transitions. [2024-11-23 23:15:44,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-23 23:15:44,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:44,186 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:44,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:15:44,186 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:44,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:44,187 INFO L85 PathProgramCache]: Analyzing trace with hash 753471811, now seen corresponding path program 1 times [2024-11-23 23:15:44,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:44,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446804609] [2024-11-23 23:15:44,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:44,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:44,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:44,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446804609] [2024-11-23 23:15:44,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446804609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:44,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:44,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:15:44,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094690269] [2024-11-23 23:15:44,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:44,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:15:44,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:44,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:15:44,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:15:44,593 INFO L87 Difference]: Start difference. First operand 136546 states and 212789 transitions. Second operand has 5 states, 5 states have (on average 66.8) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:45,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:45,933 INFO L93 Difference]: Finished difference Result 261807 states and 408729 transitions. [2024-11-23 23:15:45,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:15:45,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.8) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 334 [2024-11-23 23:15:45,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:46,082 INFO L225 Difference]: With dead ends: 261807 [2024-11-23 23:15:46,082 INFO L226 Difference]: Without dead ends: 136546 [2024-11-23 23:15:46,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:15:46,136 INFO L435 NwaCegarLoop]: 944 mSDtfsCounter, 2923 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2923 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:46,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2923 Valid, 1497 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:15:46,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136546 states. [2024-11-23 23:15:48,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136546 to 136546. [2024-11-23 23:15:48,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136546 states, 136545 states have (on average 1.5494379142407264) internal successors, (211568), 136545 states have internal predecessors, (211568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:48,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136546 states to 136546 states and 211568 transitions. [2024-11-23 23:15:48,908 INFO L78 Accepts]: Start accepts. Automaton has 136546 states and 211568 transitions. Word has length 334 [2024-11-23 23:15:48,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:48,908 INFO L471 AbstractCegarLoop]: Abstraction has 136546 states and 211568 transitions. [2024-11-23 23:15:48,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.8) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:48,909 INFO L276 IsEmpty]: Start isEmpty. Operand 136546 states and 211568 transitions. [2024-11-23 23:15:48,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-23 23:15:48,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:48,937 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:48,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:15:48,937 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:48,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:48,938 INFO L85 PathProgramCache]: Analyzing trace with hash 458989182, now seen corresponding path program 1 times [2024-11-23 23:15:48,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:48,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577224351] [2024-11-23 23:15:48,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:48,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:49,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:49,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:49,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577224351] [2024-11-23 23:15:49,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577224351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:49,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:49,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:15:49,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582047073] [2024-11-23 23:15:49,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:49,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:15:49,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:49,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:15:49,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:15:49,652 INFO L87 Difference]: Start difference. First operand 136546 states and 211568 transitions. Second operand has 8 states, 8 states have (on average 41.75) internal successors, (334), 7 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:53,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:53,164 INFO L93 Difference]: Finished difference Result 469008 states and 731919 transitions. [2024-11-23 23:15:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:15:53,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 41.75) internal successors, (334), 7 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 334 [2024-11-23 23:15:53,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:53,547 INFO L225 Difference]: With dead ends: 469008 [2024-11-23 23:15:53,547 INFO L226 Difference]: Without dead ends: 344627 [2024-11-23 23:15:53,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:15:53,596 INFO L435 NwaCegarLoop]: 975 mSDtfsCounter, 13114 mSDsluCounter, 2641 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13114 SdHoareTripleChecker+Valid, 3616 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:53,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13114 Valid, 3616 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 23:15:53,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344627 states. [2024-11-23 23:15:57,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344627 to 176878. [2024-11-23 23:15:57,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176878 states, 176877 states have (on average 1.5221425058091216) internal successors, (269232), 176877 states have internal predecessors, (269232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:57,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176878 states to 176878 states and 269232 transitions. [2024-11-23 23:15:57,441 INFO L78 Accepts]: Start accepts. Automaton has 176878 states and 269232 transitions. Word has length 334 [2024-11-23 23:15:57,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:57,442 INFO L471 AbstractCegarLoop]: Abstraction has 176878 states and 269232 transitions. [2024-11-23 23:15:57,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 41.75) internal successors, (334), 7 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:15:57,442 INFO L276 IsEmpty]: Start isEmpty. Operand 176878 states and 269232 transitions. [2024-11-23 23:15:57,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-23 23:15:57,481 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:57,481 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:57,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 23:15:57,482 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:57,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:57,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1348719821, now seen corresponding path program 1 times [2024-11-23 23:15:57,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:57,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978318167] [2024-11-23 23:15:57,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:57,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:59,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:59,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:59,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978318167] [2024-11-23 23:15:59,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978318167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:59,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:59,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:15:59,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800499625] [2024-11-23 23:15:59,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:59,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:15:59,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:59,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:15:59,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:15:59,061 INFO L87 Difference]: Start difference. First operand 176878 states and 269232 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:16:00,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:16:00,910 INFO L93 Difference]: Finished difference Result 514218 states and 782827 transitions. [2024-11-23 23:16:00,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:16:00,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 334 [2024-11-23 23:16:00,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:16:01,238 INFO L225 Difference]: With dead ends: 514218 [2024-11-23 23:16:01,238 INFO L226 Difference]: Without dead ends: 338091 [2024-11-23 23:16:01,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:16:01,326 INFO L435 NwaCegarLoop]: 2012 mSDtfsCounter, 2120 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2120 SdHoareTripleChecker+Valid, 3137 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:16:01,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2120 Valid, 3137 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:16:01,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338091 states. [2024-11-23 23:16:06,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338091 to 338089. [2024-11-23 23:16:06,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338089 states, 338088 states have (on average 1.5153007501005655) internal successors, (512305), 338088 states have internal predecessors, (512305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:16:07,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338089 states to 338089 states and 512305 transitions. [2024-11-23 23:16:07,252 INFO L78 Accepts]: Start accepts. Automaton has 338089 states and 512305 transitions. Word has length 334 [2024-11-23 23:16:07,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:16:07,252 INFO L471 AbstractCegarLoop]: Abstraction has 338089 states and 512305 transitions. [2024-11-23 23:16:07,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:16:07,253 INFO L276 IsEmpty]: Start isEmpty. Operand 338089 states and 512305 transitions. [2024-11-23 23:16:07,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-23 23:16:07,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:16:07,367 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:16:07,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 23:16:07,367 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:16:07,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:16:07,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1324966941, now seen corresponding path program 1 times [2024-11-23 23:16:07,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:16:07,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59364137] [2024-11-23 23:16:07,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:16:07,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:16:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:16:07,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:16:07,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:16:07,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59364137] [2024-11-23 23:16:07,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59364137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:16:07,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:16:07,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:16:07,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676067392] [2024-11-23 23:16:07,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:16:07,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:16:07,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:16:07,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:16:07,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:16:07,594 INFO L87 Difference]: Start difference. First operand 338089 states and 512305 transitions. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)