./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a63cb7f0f4bcb602d996a2f5bca04060f41dddcdd6e5c22a959463569230eb1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:55:35,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:55:36,088 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:55:36,098 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:55:36,098 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:55:36,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:55:36,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:55:36,138 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:55:36,138 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:55:36,138 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:55:36,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:55:36,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:55:36,139 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:55:36,139 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:55:36,139 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:55:36,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:55:36,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:55:36,141 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:55:36,142 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:55:36,142 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:55:36,142 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:55:36,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:55:36,143 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:55:36,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:55:36,143 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:55:36,143 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:55:36,143 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:55:36,143 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:55:36,143 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:55:36,144 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:55:36,144 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:55:36,144 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:55:36,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:55:36,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:55:36,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:55:36,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:55:36,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:55:36,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:55:36,145 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:55:36,145 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:55:36,145 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:55:36,145 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:55:36,145 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:55:36,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:55:36,145 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:55:36,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:55:36,146 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:55:36,146 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:55:36,146 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_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a63cb7f0f4bcb602d996a2f5bca04060f41dddcdd6e5c22a959463569230eb1 [2024-11-28 04:55:36,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:55:36,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:55:36,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:55:36,492 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:55:36,492 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:55:36,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-34.i [2024-11-28 04:55:39,502 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/data/a6fcf92e7/d4ff7f66d19444afb1ce7606c4db54ca/FLAG913a00c2a [2024-11-28 04:55:39,810 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:55:39,811 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-34.i [2024-11-28 04:55:39,834 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/data/a6fcf92e7/d4ff7f66d19444afb1ce7606c4db54ca/FLAG913a00c2a [2024-11-28 04:55:39,866 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/data/a6fcf92e7/d4ff7f66d19444afb1ce7606c4db54ca [2024-11-28 04:55:39,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:55:39,870 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:55:39,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:55:39,874 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:55:39,879 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:55:39,880 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:55:39" (1/1) ... [2024-11-28 04:55:39,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8042d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:39, skipping insertion in model container [2024-11-28 04:55:39,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:55:39" (1/1) ... [2024-11-28 04:55:39,920 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:55:40,073 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_2eb05e5b-9905-4e61-91b2-c11e1d010a24/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-34.i[919,932] [2024-11-28 04:55:40,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:55:40,175 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:55:40,186 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_2eb05e5b-9905-4e61-91b2-c11e1d010a24/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-34.i[919,932] [2024-11-28 04:55:40,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:55:40,247 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:55:40,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40 WrapperNode [2024-11-28 04:55:40,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:55:40,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:55:40,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:55:40,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:55:40,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40" (1/1) ... [2024-11-28 04:55:40,275 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40" (1/1) ... [2024-11-28 04:55:40,322 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 265 [2024-11-28 04:55:40,322 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:55:40,323 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:55:40,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:55:40,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:55:40,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40" (1/1) ... [2024-11-28 04:55:40,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40" (1/1) ... [2024-11-28 04:55:40,342 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40" (1/1) ... [2024-11-28 04:55:40,376 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:55:40,376 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40" (1/1) ... [2024-11-28 04:55:40,376 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40" (1/1) ... [2024-11-28 04:55:40,393 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40" (1/1) ... [2024-11-28 04:55:40,395 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40" (1/1) ... [2024-11-28 04:55:40,402 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40" (1/1) ... [2024-11-28 04:55:40,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40" (1/1) ... [2024-11-28 04:55:40,412 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40" (1/1) ... [2024-11-28 04:55:40,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:55:40,421 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:55:40,421 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:55:40,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:55:40,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40" (1/1) ... [2024-11-28 04:55:40,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:55:40,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:55:40,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:55:40,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:55:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:55:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:55:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:55:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:55:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:55:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:55:40,602 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:55:40,604 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:55:41,275 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-28 04:55:41,275 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:55:41,291 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:55:41,292 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:55:41,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:55:41 BoogieIcfgContainer [2024-11-28 04:55:41,292 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:55:41,296 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:55:41,296 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:55:41,302 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:55:41,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:55:39" (1/3) ... [2024-11-28 04:55:41,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e11c51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:55:41, skipping insertion in model container [2024-11-28 04:55:41,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:55:40" (2/3) ... [2024-11-28 04:55:41,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e11c51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:55:41, skipping insertion in model container [2024-11-28 04:55:41,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:55:41" (3/3) ... [2024-11-28 04:55:41,304 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-34.i [2024-11-28 04:55:41,324 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:55:41,326 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-34.i that has 2 procedures, 112 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:55:41,401 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:55:41,418 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;@451f48cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:55:41,418 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:55:41,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 76 states have (on average 1.4736842105263157) internal successors, (112), 77 states have internal predecessors, (112), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 04:55:41,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-28 04:55:41,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:55:41,443 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:55:41,445 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:55:41,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:41,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1917208317, now seen corresponding path program 1 times [2024-11-28 04:55:41,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:55:41,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872396940] [2024-11-28 04:55:41,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:55:41,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:55:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:41,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-11-28 04:55:41,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:55:41,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872396940] [2024-11-28 04:55:41,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872396940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:55:41,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493106636] [2024-11-28 04:55:41,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:55:41,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:41,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:55:41,905 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:55:41,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:55:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:42,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:55:42,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:42,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-11-28 04:55:42,281 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:55:42,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493106636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:55:42,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:55:42,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:55:42,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534600105] [2024-11-28 04:55:42,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:55:42,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:55:42,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:55:42,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:55:42,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:55:42,318 INFO L87 Difference]: Start difference. First operand has 112 states, 76 states have (on average 1.4736842105263157) internal successors, (112), 77 states have internal predecessors, (112), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 04:55:42,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:55:42,376 INFO L93 Difference]: Finished difference Result 217 states and 383 transitions. [2024-11-28 04:55:42,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:55:42,379 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) Word has length 212 [2024-11-28 04:55:42,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:55:42,390 INFO L225 Difference]: With dead ends: 217 [2024-11-28 04:55:42,390 INFO L226 Difference]: Without dead ends: 108 [2024-11-28 04:55:42,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:55:42,402 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:55:42,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:55:42,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-28 04:55:42,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-28 04:55:42,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 73 states have (on average 1.4383561643835616) internal successors, (105), 73 states have internal predecessors, (105), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 04:55:42,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 171 transitions. [2024-11-28 04:55:42,473 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 171 transitions. Word has length 212 [2024-11-28 04:55:42,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:55:42,475 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 171 transitions. [2024-11-28 04:55:42,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 04:55:42,477 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 171 transitions. [2024-11-28 04:55:42,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-28 04:55:42,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:55:42,485 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:55:42,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:55:42,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:55:42,686 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:55:42,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:42,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1111651081, now seen corresponding path program 1 times [2024-11-28 04:55:42,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:55:42,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850431995] [2024-11-28 04:55:42,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:55:42,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:55:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:55:43,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:55:43,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850431995] [2024-11-28 04:55:43,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850431995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:55:43,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:55:43,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:55:43,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483869666] [2024-11-28 04:55:43,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:55:43,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:55:43,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:55:43,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:55:43,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:55:43,744 INFO L87 Difference]: Start difference. First operand 108 states and 171 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:55:44,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:55:44,079 INFO L93 Difference]: Finished difference Result 348 states and 552 transitions. [2024-11-28 04:55:44,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:55:44,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 212 [2024-11-28 04:55:44,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:55:44,084 INFO L225 Difference]: With dead ends: 348 [2024-11-28 04:55:44,085 INFO L226 Difference]: Without dead ends: 243 [2024-11-28 04:55:44,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:55:44,087 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 171 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:55:44,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 531 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:55:44,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-28 04:55:44,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 213. [2024-11-28 04:55:44,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 144 states have (on average 1.4375) internal successors, (207), 144 states have internal predecessors, (207), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-28 04:55:44,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 339 transitions. [2024-11-28 04:55:44,185 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 339 transitions. Word has length 212 [2024-11-28 04:55:44,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:55:44,186 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 339 transitions. [2024-11-28 04:55:44,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:55:44,186 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 339 transitions. [2024-11-28 04:55:44,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-28 04:55:44,190 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:55:44,191 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:55:44,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:55:44,191 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:55:44,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:44,192 INFO L85 PathProgramCache]: Analyzing trace with hash -961702031, now seen corresponding path program 1 times [2024-11-28 04:55:44,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:55:44,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265618314] [2024-11-28 04:55:44,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:55:44,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:55:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:44,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:55:44,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:55:44,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265618314] [2024-11-28 04:55:44,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265618314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:55:44,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:55:44,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:55:44,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201686296] [2024-11-28 04:55:44,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:55:44,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:55:44,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:55:44,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:55:44,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:55:44,840 INFO L87 Difference]: Start difference. First operand 213 states and 339 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:55:45,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:55:45,405 INFO L93 Difference]: Finished difference Result 628 states and 1000 transitions. [2024-11-28 04:55:45,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:55:45,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 213 [2024-11-28 04:55:45,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:55:45,412 INFO L225 Difference]: With dead ends: 628 [2024-11-28 04:55:45,412 INFO L226 Difference]: Without dead ends: 418 [2024-11-28 04:55:45,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:55:45,415 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 197 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:55:45,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 625 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:55:45,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-28 04:55:45,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 217. [2024-11-28 04:55:45,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 148 states have (on average 1.4256756756756757) internal successors, (211), 148 states have internal predecessors, (211), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-28 04:55:45,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 343 transitions. [2024-11-28 04:55:45,506 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 343 transitions. Word has length 213 [2024-11-28 04:55:45,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:55:45,507 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 343 transitions. [2024-11-28 04:55:45,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:55:45,507 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 343 transitions. [2024-11-28 04:55:45,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-28 04:55:45,514 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:55:45,515 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:55:45,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:55:45,515 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:55:45,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:45,516 INFO L85 PathProgramCache]: Analyzing trace with hash 341696479, now seen corresponding path program 1 times [2024-11-28 04:55:45,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:55:45,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230939335] [2024-11-28 04:55:45,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:55:45,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:55:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:53,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:55:53,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:55:53,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230939335] [2024-11-28 04:55:53,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230939335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:55:53,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:55:53,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:55:53,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859916176] [2024-11-28 04:55:53,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:55:53,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:55:53,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:55:53,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:55:53,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:55:53,394 INFO L87 Difference]: Start difference. First operand 217 states and 343 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:55:58,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:55:58,451 INFO L93 Difference]: Finished difference Result 795 states and 1226 transitions. [2024-11-28 04:55:58,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:55:58,452 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 214 [2024-11-28 04:55:58,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:55:58,457 INFO L225 Difference]: With dead ends: 795 [2024-11-28 04:55:58,457 INFO L226 Difference]: Without dead ends: 581 [2024-11-28 04:55:58,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:55:58,459 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 853 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:55:58,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 920 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 04:55:58,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-28 04:55:58,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 445. [2024-11-28 04:55:58,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 301 states have (on average 1.4053156146179402) internal successors, (423), 302 states have internal predecessors, (423), 137 states have call successors, (137), 6 states have call predecessors, (137), 6 states have return successors, (137), 136 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-28 04:55:58,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 697 transitions. [2024-11-28 04:55:58,550 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 697 transitions. Word has length 214 [2024-11-28 04:55:58,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:55:58,552 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 697 transitions. [2024-11-28 04:55:58,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:55:58,552 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 697 transitions. [2024-11-28 04:55:58,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-28 04:55:58,555 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:55:58,556 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:55:58,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:55:58,556 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:55:58,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:58,557 INFO L85 PathProgramCache]: Analyzing trace with hash 2116703841, now seen corresponding path program 1 times [2024-11-28 04:55:58,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:55:58,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049799905] [2024-11-28 04:55:58,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:55:58,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:55:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:02,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:56:02,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:02,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049799905] [2024-11-28 04:56:02,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049799905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:02,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:02,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:56:02,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815667219] [2024-11-28 04:56:02,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:02,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:56:02,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:02,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:56:02,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:56:02,127 INFO L87 Difference]: Start difference. First operand 445 states and 697 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:03,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:03,937 INFO L93 Difference]: Finished difference Result 1272 states and 1960 transitions. [2024-11-28 04:56:03,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:56:03,938 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 214 [2024-11-28 04:56:03,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:03,943 INFO L225 Difference]: With dead ends: 1272 [2024-11-28 04:56:03,943 INFO L226 Difference]: Without dead ends: 838 [2024-11-28 04:56:03,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:56:03,946 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 437 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:03,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 673 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:56:03,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-28 04:56:04,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 554. [2024-11-28 04:56:04,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 381 states have (on average 1.4094488188976377) internal successors, (537), 381 states have internal predecessors, (537), 165 states have call successors, (165), 7 states have call predecessors, (165), 7 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:56:04,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 867 transitions. [2024-11-28 04:56:04,037 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 867 transitions. Word has length 214 [2024-11-28 04:56:04,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:04,038 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 867 transitions. [2024-11-28 04:56:04,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 867 transitions. [2024-11-28 04:56:04,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-28 04:56:04,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:04,042 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:04,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:56:04,042 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:56:04,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:04,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1021754849, now seen corresponding path program 1 times [2024-11-28 04:56:04,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:04,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982395469] [2024-11-28 04:56:04,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:04,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:07,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:56:07,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:07,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982395469] [2024-11-28 04:56:07,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982395469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:07,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:07,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:56:07,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485777337] [2024-11-28 04:56:07,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:07,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:56:07,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:07,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:56:07,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:56:07,395 INFO L87 Difference]: Start difference. First operand 554 states and 867 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:09,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:09,223 INFO L93 Difference]: Finished difference Result 1324 states and 2025 transitions. [2024-11-28 04:56:09,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:56:09,224 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 214 [2024-11-28 04:56:09,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:09,230 INFO L225 Difference]: With dead ends: 1324 [2024-11-28 04:56:09,230 INFO L226 Difference]: Without dead ends: 847 [2024-11-28 04:56:09,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:56:09,233 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 373 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:09,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 677 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:56:09,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-11-28 04:56:09,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 707. [2024-11-28 04:56:09,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 534 states have (on average 1.4250936329588015) internal successors, (761), 534 states have internal predecessors, (761), 165 states have call successors, (165), 7 states have call predecessors, (165), 7 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:56:09,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 1091 transitions. [2024-11-28 04:56:09,317 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 1091 transitions. Word has length 214 [2024-11-28 04:56:09,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:09,318 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 1091 transitions. [2024-11-28 04:56:09,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:09,319 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 1091 transitions. [2024-11-28 04:56:09,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-28 04:56:09,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:09,322 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:09,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:56:09,322 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:56:09,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:09,323 INFO L85 PathProgramCache]: Analyzing trace with hash -928436592, now seen corresponding path program 1 times [2024-11-28 04:56:09,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:09,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104958873] [2024-11-28 04:56:09,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:09,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:10,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:56:10,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:10,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104958873] [2024-11-28 04:56:10,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104958873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:10,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:10,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:56:10,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526652642] [2024-11-28 04:56:10,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:10,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:56:10,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:10,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:56:10,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:56:10,957 INFO L87 Difference]: Start difference. First operand 707 states and 1091 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:11,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:11,665 INFO L93 Difference]: Finished difference Result 1143 states and 1743 transitions. [2024-11-28 04:56:11,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:56:11,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 214 [2024-11-28 04:56:11,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:11,672 INFO L225 Difference]: With dead ends: 1143 [2024-11-28 04:56:11,672 INFO L226 Difference]: Without dead ends: 883 [2024-11-28 04:56:11,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:56:11,674 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 214 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:11,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 615 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:56:11,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-28 04:56:11,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 713. [2024-11-28 04:56:11,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 540 states have (on average 1.4166666666666667) internal successors, (765), 540 states have internal predecessors, (765), 165 states have call successors, (165), 7 states have call predecessors, (165), 7 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:56:11,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1095 transitions. [2024-11-28 04:56:11,765 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1095 transitions. Word has length 214 [2024-11-28 04:56:11,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:11,766 INFO L471 AbstractCegarLoop]: Abstraction has 713 states and 1095 transitions. [2024-11-28 04:56:11,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:11,766 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1095 transitions. [2024-11-28 04:56:11,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-28 04:56:11,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:11,769 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:11,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:56:11,770 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:56:11,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:11,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1105586591, now seen corresponding path program 1 times [2024-11-28 04:56:11,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:11,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461030308] [2024-11-28 04:56:11,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:11,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:12,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:56:12,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:12,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461030308] [2024-11-28 04:56:12,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461030308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:12,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:12,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:56:12,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805845683] [2024-11-28 04:56:12,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:12,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:56:12,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:12,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:56:12,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:56:12,416 INFO L87 Difference]: Start difference. First operand 713 states and 1095 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:13,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:13,511 INFO L93 Difference]: Finished difference Result 1451 states and 2207 transitions. [2024-11-28 04:56:13,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:56:13,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 214 [2024-11-28 04:56:13,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:13,517 INFO L225 Difference]: With dead ends: 1451 [2024-11-28 04:56:13,518 INFO L226 Difference]: Without dead ends: 985 [2024-11-28 04:56:13,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:56:13,520 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 310 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:13,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 689 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:56:13,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-11-28 04:56:13,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 711. [2024-11-28 04:56:13,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 538 states have (on average 1.4144981412639406) internal successors, (761), 538 states have internal predecessors, (761), 165 states have call successors, (165), 7 states have call predecessors, (165), 7 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:56:13,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 1091 transitions. [2024-11-28 04:56:13,613 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 1091 transitions. Word has length 214 [2024-11-28 04:56:13,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:13,614 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 1091 transitions. [2024-11-28 04:56:13,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:13,614 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 1091 transitions. [2024-11-28 04:56:13,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-28 04:56:13,618 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:13,618 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:13,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:56:13,619 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:56:13,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:13,619 INFO L85 PathProgramCache]: Analyzing trace with hash 10637599, now seen corresponding path program 1 times [2024-11-28 04:56:13,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:13,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455884148] [2024-11-28 04:56:13,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:13,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:14,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:56:14,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:14,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455884148] [2024-11-28 04:56:14,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455884148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:14,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:14,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:56:14,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557589752] [2024-11-28 04:56:14,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:14,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:56:14,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:14,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:56:14,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:56:14,134 INFO L87 Difference]: Start difference. First operand 711 states and 1091 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:14,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:14,544 INFO L93 Difference]: Finished difference Result 1295 states and 1977 transitions. [2024-11-28 04:56:14,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:56:14,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 214 [2024-11-28 04:56:14,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:14,549 INFO L225 Difference]: With dead ends: 1295 [2024-11-28 04:56:14,550 INFO L226 Difference]: Without dead ends: 725 [2024-11-28 04:56:14,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:56:14,554 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 123 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:14,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 440 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:56:14,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-28 04:56:14,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 671. [2024-11-28 04:56:14,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 498 states have (on average 1.391566265060241) internal successors, (693), 498 states have internal predecessors, (693), 165 states have call successors, (165), 7 states have call predecessors, (165), 7 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:56:14,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1023 transitions. [2024-11-28 04:56:14,653 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1023 transitions. Word has length 214 [2024-11-28 04:56:14,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:14,655 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 1023 transitions. [2024-11-28 04:56:14,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:14,655 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1023 transitions. [2024-11-28 04:56:14,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-28 04:56:14,656 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:14,657 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:14,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:56:14,657 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:56:14,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:14,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1272110534, now seen corresponding path program 1 times [2024-11-28 04:56:14,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:14,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981998460] [2024-11-28 04:56:14,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:14,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:18,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:56:18,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:18,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981998460] [2024-11-28 04:56:18,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981998460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:18,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:18,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:56:18,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429431590] [2024-11-28 04:56:18,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:18,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:56:18,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:18,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:56:18,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:56:18,295 INFO L87 Difference]: Start difference. First operand 671 states and 1023 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:20,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:20,167 INFO L93 Difference]: Finished difference Result 1097 states and 1653 transitions. [2024-11-28 04:56:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:56:20,168 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 215 [2024-11-28 04:56:20,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:20,173 INFO L225 Difference]: With dead ends: 1097 [2024-11-28 04:56:20,173 INFO L226 Difference]: Without dead ends: 883 [2024-11-28 04:56:20,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:56:20,175 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 285 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:20,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 807 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:56:20,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-28 04:56:20,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 707. [2024-11-28 04:56:20,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 532 states have (on average 1.3740601503759398) internal successors, (731), 532 states have internal predecessors, (731), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:56:20,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 1061 transitions. [2024-11-28 04:56:20,267 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 1061 transitions. Word has length 215 [2024-11-28 04:56:20,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:20,267 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 1061 transitions. [2024-11-28 04:56:20,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:20,268 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 1061 transitions. [2024-11-28 04:56:20,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-28 04:56:20,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:20,270 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:20,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:56:20,271 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:56:20,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:20,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1117077052, now seen corresponding path program 1 times [2024-11-28 04:56:20,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:20,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573851221] [2024-11-28 04:56:20,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:20,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:25,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:56:25,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:25,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573851221] [2024-11-28 04:56:25,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573851221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:25,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:25,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:56:25,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664810548] [2024-11-28 04:56:25,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:25,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:56:25,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:25,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:56:25,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:56:25,277 INFO L87 Difference]: Start difference. First operand 707 states and 1061 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:29,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:29,337 INFO L93 Difference]: Finished difference Result 1502 states and 2243 transitions. [2024-11-28 04:56:29,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:56:29,338 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 215 [2024-11-28 04:56:29,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:29,349 INFO L225 Difference]: With dead ends: 1502 [2024-11-28 04:56:29,349 INFO L226 Difference]: Without dead ends: 978 [2024-11-28 04:56:29,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:56:29,353 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 424 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:29,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1282 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 04:56:29,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2024-11-28 04:56:29,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 774. [2024-11-28 04:56:29,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 599 states have (on average 1.3823038397328882) internal successors, (828), 599 states have internal predecessors, (828), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:56:29,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1158 transitions. [2024-11-28 04:56:29,441 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1158 transitions. Word has length 215 [2024-11-28 04:56:29,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:29,441 INFO L471 AbstractCegarLoop]: Abstraction has 774 states and 1158 transitions. [2024-11-28 04:56:29,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:29,442 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1158 transitions. [2024-11-28 04:56:29,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 04:56:29,447 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:29,447 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:29,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:56:29,447 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:56:29,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:29,448 INFO L85 PathProgramCache]: Analyzing trace with hash 870409258, now seen corresponding path program 1 times [2024-11-28 04:56:29,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:29,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900440724] [2024-11-28 04:56:29,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:29,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:36,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:56:36,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:36,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900440724] [2024-11-28 04:56:36,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900440724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:36,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:36,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:56:36,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611599992] [2024-11-28 04:56:36,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:36,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:56:36,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:36,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:56:36,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:56:36,006 INFO L87 Difference]: Start difference. First operand 774 states and 1158 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:40,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:40,578 INFO L93 Difference]: Finished difference Result 1244 states and 1849 transitions. [2024-11-28 04:56:40,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:56:40,579 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 216 [2024-11-28 04:56:40,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:40,583 INFO L225 Difference]: With dead ends: 1244 [2024-11-28 04:56:40,583 INFO L226 Difference]: Without dead ends: 1014 [2024-11-28 04:56:40,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:56:40,585 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 383 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:40,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 933 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 04:56:40,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-28 04:56:40,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 766. [2024-11-28 04:56:40,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 591 states have (on average 1.3840947546531304) internal successors, (818), 591 states have internal predecessors, (818), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:56:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1148 transitions. [2024-11-28 04:56:40,704 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1148 transitions. Word has length 216 [2024-11-28 04:56:40,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:40,705 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 1148 transitions. [2024-11-28 04:56:40,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:40,705 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1148 transitions. [2024-11-28 04:56:40,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 04:56:40,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:40,707 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:40,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:56:40,707 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:56:40,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:40,708 INFO L85 PathProgramCache]: Analyzing trace with hash -354425634, now seen corresponding path program 1 times [2024-11-28 04:56:40,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:40,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940964942] [2024-11-28 04:56:40,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:40,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:45,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:56:45,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:45,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940964942] [2024-11-28 04:56:45,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940964942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:45,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:45,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:56:45,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730127809] [2024-11-28 04:56:45,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:45,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:56:45,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:45,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:56:45,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:56:45,412 INFO L87 Difference]: Start difference. First operand 766 states and 1148 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:50,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:50,289 INFO L93 Difference]: Finished difference Result 1567 states and 2338 transitions. [2024-11-28 04:56:50,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:56:50,290 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 216 [2024-11-28 04:56:50,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:50,295 INFO L225 Difference]: With dead ends: 1567 [2024-11-28 04:56:50,295 INFO L226 Difference]: Without dead ends: 1051 [2024-11-28 04:56:50,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:56:50,298 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 492 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:50,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 690 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 04:56:50,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2024-11-28 04:56:50,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 772. [2024-11-28 04:56:50,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 597 states have (on average 1.3869346733668342) internal successors, (828), 597 states have internal predecessors, (828), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:56:50,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1158 transitions. [2024-11-28 04:56:50,396 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1158 transitions. Word has length 216 [2024-11-28 04:56:50,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:50,397 INFO L471 AbstractCegarLoop]: Abstraction has 772 states and 1158 transitions. [2024-11-28 04:56:50,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:56:50,397 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1158 transitions. [2024-11-28 04:56:50,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 04:56:50,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:50,399 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:50,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:56:50,400 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:56:50,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:50,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1449374626, now seen corresponding path program 1 times [2024-11-28 04:56:50,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:50,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774805159] [2024-11-28 04:56:50,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:50,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:56:55,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:55,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774805159] [2024-11-28 04:56:55,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774805159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:55,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:55,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 04:56:55,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728226327] [2024-11-28 04:56:55,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:55,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:56:55,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:55,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:56:55,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:56:55,214 INFO L87 Difference]: Start difference. First operand 772 states and 1158 transitions. Second operand has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 04:57:03,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:03,653 INFO L93 Difference]: Finished difference Result 1725 states and 2544 transitions. [2024-11-28 04:57:03,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:57:03,654 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 216 [2024-11-28 04:57:03,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:03,658 INFO L225 Difference]: With dead ends: 1725 [2024-11-28 04:57:03,658 INFO L226 Difference]: Without dead ends: 1132 [2024-11-28 04:57:03,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:57:03,661 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 642 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:03,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 1052 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-28 04:57:03,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2024-11-28 04:57:03,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 868. [2024-11-28 04:57:03,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 693 states have (on average 1.3823953823953823) internal successors, (958), 693 states have internal predecessors, (958), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:57:03,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1288 transitions. [2024-11-28 04:57:03,780 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1288 transitions. Word has length 216 [2024-11-28 04:57:03,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:03,781 INFO L471 AbstractCegarLoop]: Abstraction has 868 states and 1288 transitions. [2024-11-28 04:57:03,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 04:57:03,781 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1288 transitions. [2024-11-28 04:57:03,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 04:57:03,783 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:03,783 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:03,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:57:03,783 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:57:03,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:03,784 INFO L85 PathProgramCache]: Analyzing trace with hash 325632736, now seen corresponding path program 1 times [2024-11-28 04:57:03,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:03,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324040849] [2024-11-28 04:57:03,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:03,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:20,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:57:20,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:20,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324040849] [2024-11-28 04:57:20,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324040849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:57:20,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:57:20,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 04:57:20,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088564187] [2024-11-28 04:57:20,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:20,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:57:20,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:20,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:57:20,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:57:20,025 INFO L87 Difference]: Start difference. First operand 868 states and 1288 transitions. Second operand has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:57:24,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:24,276 INFO L93 Difference]: Finished difference Result 1488 states and 2206 transitions. [2024-11-28 04:57:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:57:24,277 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 216 [2024-11-28 04:57:24,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:24,280 INFO L225 Difference]: With dead ends: 1488 [2024-11-28 04:57:24,281 INFO L226 Difference]: Without dead ends: 962 [2024-11-28 04:57:24,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:57:24,283 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 495 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:24,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 1038 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 04:57:24,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2024-11-28 04:57:24,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 864. [2024-11-28 04:57:24,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 689 states have (on average 1.3788098693759072) internal successors, (950), 689 states have internal predecessors, (950), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:57:24,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1280 transitions. [2024-11-28 04:57:24,400 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1280 transitions. Word has length 216 [2024-11-28 04:57:24,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:24,401 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1280 transitions. [2024-11-28 04:57:24,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:57:24,402 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1280 transitions. [2024-11-28 04:57:24,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-28 04:57:24,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:24,404 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:24,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:57:24,404 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:57:24,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:24,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1391725280, now seen corresponding path program 1 times [2024-11-28 04:57:24,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:24,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566031188] [2024-11-28 04:57:24,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:24,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:51,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:57:51,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:51,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566031188] [2024-11-28 04:57:51,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566031188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:57:51,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:57:51,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 04:57:51,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212186597] [2024-11-28 04:57:51,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:51,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:57:51,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:51,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:57:51,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:57:51,747 INFO L87 Difference]: Start difference. First operand 864 states and 1280 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 04:57:53,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:53,619 INFO L93 Difference]: Finished difference Result 1224 states and 1748 transitions. [2024-11-28 04:57:53,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:57:53,620 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 217 [2024-11-28 04:57:53,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:53,624 INFO L225 Difference]: With dead ends: 1224 [2024-11-28 04:57:53,624 INFO L226 Difference]: Without dead ends: 1222 [2024-11-28 04:57:53,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:57:53,625 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 477 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:53,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1300 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:57:53,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2024-11-28 04:57:53,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 935. [2024-11-28 04:57:53,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 760 states have (on average 1.3736842105263158) internal successors, (1044), 760 states have internal predecessors, (1044), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:57:53,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1374 transitions. [2024-11-28 04:57:53,750 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1374 transitions. Word has length 217 [2024-11-28 04:57:53,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:53,751 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1374 transitions. [2024-11-28 04:57:53,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 04:57:53,751 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1374 transitions. [2024-11-28 04:57:53,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-28 04:57:53,753 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:53,753 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:53,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:57:53,754 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:57:53,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:53,755 INFO L85 PathProgramCache]: Analyzing trace with hash 574076830, now seen corresponding path program 1 times [2024-11-28 04:57:53,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:53,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633386762] [2024-11-28 04:57:53,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:53,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:18,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:58:18,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:18,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633386762] [2024-11-28 04:58:18,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633386762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:18,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:18,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 04:58:18,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300054780] [2024-11-28 04:58:18,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:18,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:58:18,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:18,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:58:18,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:58:18,286 INFO L87 Difference]: Start difference. First operand 935 states and 1374 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 04:58:20,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:20,455 INFO L93 Difference]: Finished difference Result 1226 states and 1751 transitions. [2024-11-28 04:58:20,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:58:20,456 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 217 [2024-11-28 04:58:20,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:20,460 INFO L225 Difference]: With dead ends: 1226 [2024-11-28 04:58:20,460 INFO L226 Difference]: Without dead ends: 1224 [2024-11-28 04:58:20,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:58:20,461 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 397 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:20,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 1266 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:58:20,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-28 04:58:20,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1002. [2024-11-28 04:58:20,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 827 states have (on average 1.3615477629987909) internal successors, (1126), 827 states have internal predecessors, (1126), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:58:20,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1456 transitions. [2024-11-28 04:58:20,573 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1456 transitions. Word has length 217 [2024-11-28 04:58:20,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:20,574 INFO L471 AbstractCegarLoop]: Abstraction has 1002 states and 1456 transitions. [2024-11-28 04:58:20,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 04:58:20,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1456 transitions. [2024-11-28 04:58:20,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-28 04:58:20,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:20,577 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:20,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:58:20,578 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:20,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:20,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1814427106, now seen corresponding path program 1 times [2024-11-28 04:58:20,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:20,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101007302] [2024-11-28 04:58:20,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:20,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:20,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:58:20,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:20,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101007302] [2024-11-28 04:58:20,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101007302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:20,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:20,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:58:20,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688040827] [2024-11-28 04:58:20,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:20,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:58:20,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:20,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:58:20,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:58:20,833 INFO L87 Difference]: Start difference. First operand 1002 states and 1456 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:58:21,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:21,140 INFO L93 Difference]: Finished difference Result 1772 states and 2583 transitions. [2024-11-28 04:58:21,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:58:21,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 217 [2024-11-28 04:58:21,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:21,145 INFO L225 Difference]: With dead ends: 1772 [2024-11-28 04:58:21,145 INFO L226 Difference]: Without dead ends: 1031 [2024-11-28 04:58:21,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:58:21,147 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 134 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:21,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 651 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:58:21,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-11-28 04:58:21,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 983. [2024-11-28 04:58:21,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 808 states have (on average 1.3613861386138615) internal successors, (1100), 808 states have internal predecessors, (1100), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:58:21,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1430 transitions. [2024-11-28 04:58:21,292 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1430 transitions. Word has length 217 [2024-11-28 04:58:21,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:21,292 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1430 transitions. [2024-11-28 04:58:21,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:58:21,293 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1430 transitions. [2024-11-28 04:58:21,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-28 04:58:21,295 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:21,295 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:21,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:58:21,296 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:21,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:21,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1334175801, now seen corresponding path program 1 times [2024-11-28 04:58:21,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:21,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228273005] [2024-11-28 04:58:21,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:21,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:31,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:58:31,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:31,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228273005] [2024-11-28 04:58:31,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228273005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:31,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:31,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 04:58:31,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798813656] [2024-11-28 04:58:31,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:31,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:58:31,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:31,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:58:31,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:58:31,297 INFO L87 Difference]: Start difference. First operand 983 states and 1430 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:58:34,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:34,769 INFO L93 Difference]: Finished difference Result 1777 states and 2566 transitions. [2024-11-28 04:58:34,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:58:34,770 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 217 [2024-11-28 04:58:34,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:34,779 INFO L225 Difference]: With dead ends: 1777 [2024-11-28 04:58:34,779 INFO L226 Difference]: Without dead ends: 1153 [2024-11-28 04:58:34,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=160, Invalid=542, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:58:34,782 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 287 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:34,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 1118 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:58:34,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2024-11-28 04:58:34,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 987. [2024-11-28 04:58:34,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 812 states have (on average 1.3509852216748768) internal successors, (1097), 812 states have internal predecessors, (1097), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:58:34,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1427 transitions. [2024-11-28 04:58:34,924 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1427 transitions. Word has length 217 [2024-11-28 04:58:34,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:34,925 INFO L471 AbstractCegarLoop]: Abstraction has 987 states and 1427 transitions. [2024-11-28 04:58:34,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:58:34,926 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1427 transitions. [2024-11-28 04:58:34,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-28 04:58:34,928 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:34,928 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:34,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:58:34,928 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:34,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:34,929 INFO L85 PathProgramCache]: Analyzing trace with hash -543451797, now seen corresponding path program 1 times [2024-11-28 04:58:34,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:34,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719153426] [2024-11-28 04:58:34,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:34,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:39,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:58:39,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:39,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719153426] [2024-11-28 04:58:39,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719153426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:39,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:39,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 04:58:39,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416668046] [2024-11-28 04:58:39,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:39,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:58:39,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:39,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:58:39,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:58:39,749 INFO L87 Difference]: Start difference. First operand 987 states and 1427 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:58:43,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:43,494 INFO L93 Difference]: Finished difference Result 1388 states and 2021 transitions. [2024-11-28 04:58:43,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:58:43,495 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 217 [2024-11-28 04:58:43,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:43,501 INFO L225 Difference]: With dead ends: 1388 [2024-11-28 04:58:43,502 INFO L226 Difference]: Without dead ends: 1152 [2024-11-28 04:58:43,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:58:43,504 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 280 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:43,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 863 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:58:43,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2024-11-28 04:58:43,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 997. [2024-11-28 04:58:43,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 822 states have (on average 1.3515815085158152) internal successors, (1111), 822 states have internal predecessors, (1111), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:58:43,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1441 transitions. [2024-11-28 04:58:43,675 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1441 transitions. Word has length 217 [2024-11-28 04:58:43,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:43,676 INFO L471 AbstractCegarLoop]: Abstraction has 997 states and 1441 transitions. [2024-11-28 04:58:43,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:58:43,677 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1441 transitions. [2024-11-28 04:58:43,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 04:58:43,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:43,680 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:43,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:58:43,680 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:43,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:43,681 INFO L85 PathProgramCache]: Analyzing trace with hash -362090599, now seen corresponding path program 1 times [2024-11-28 04:58:43,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:43,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062366641] [2024-11-28 04:58:43,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:43,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:16,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:59:16,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:16,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062366641] [2024-11-28 04:59:16,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062366641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:16,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:16,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 04:59:16,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375073293] [2024-11-28 04:59:16,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:16,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:59:16,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:16,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:59:16,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:59:16,419 INFO L87 Difference]: Start difference. First operand 997 states and 1441 transitions. Second operand has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 04:59:19,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:19,956 INFO L93 Difference]: Finished difference Result 1174 states and 1640 transitions. [2024-11-28 04:59:19,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:59:19,957 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 218 [2024-11-28 04:59:19,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:19,964 INFO L225 Difference]: With dead ends: 1174 [2024-11-28 04:59:19,964 INFO L226 Difference]: Without dead ends: 1172 [2024-11-28 04:59:19,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=219, Invalid=711, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:59:19,966 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 545 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:19,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1191 Invalid, 1527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 04:59:19,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2024-11-28 04:59:20,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1012. [2024-11-28 04:59:20,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 837 states have (on average 1.3488649940262845) internal successors, (1129), 837 states have internal predecessors, (1129), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:59:20,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1459 transitions. [2024-11-28 04:59:20,111 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1459 transitions. Word has length 218 [2024-11-28 04:59:20,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:20,112 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1459 transitions. [2024-11-28 04:59:20,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 04:59:20,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1459 transitions. [2024-11-28 04:59:20,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 04:59:20,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:20,115 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:20,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:59:20,116 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:20,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:20,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1373207849, now seen corresponding path program 1 times [2024-11-28 04:59:20,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:20,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295949553] [2024-11-28 04:59:20,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:20,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:20,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:59:20,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:20,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295949553] [2024-11-28 04:59:20,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295949553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:20,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:20,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:59:20,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100247383] [2024-11-28 04:59:20,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:20,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:20,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:20,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:20,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:20,251 INFO L87 Difference]: Start difference. First operand 1012 states and 1459 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:59:20,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:20,378 INFO L93 Difference]: Finished difference Result 1380 states and 2003 transitions. [2024-11-28 04:59:20,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:20,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 218 [2024-11-28 04:59:20,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:20,384 INFO L225 Difference]: With dead ends: 1380 [2024-11-28 04:59:20,384 INFO L226 Difference]: Without dead ends: 1032 [2024-11-28 04:59:20,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:20,388 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 10 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:20,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 329 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:59:20,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2024-11-28 04:59:20,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1012. [2024-11-28 04:59:20,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 837 states have (on average 1.3357228195937874) internal successors, (1118), 837 states have internal predecessors, (1118), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:59:20,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1448 transitions. [2024-11-28 04:59:20,501 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1448 transitions. Word has length 218 [2024-11-28 04:59:20,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:20,501 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1448 transitions. [2024-11-28 04:59:20,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 04:59:20,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1448 transitions. [2024-11-28 04:59:20,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 04:59:20,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:20,504 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:20,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:59:20,505 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:20,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:20,505 INFO L85 PathProgramCache]: Analyzing trace with hash 60611227, now seen corresponding path program 1 times [2024-11-28 04:59:20,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:20,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104427665] [2024-11-28 04:59:20,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:20,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:50,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:59:50,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:50,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104427665] [2024-11-28 04:59:50,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104427665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:50,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:50,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 04:59:50,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632498171] [2024-11-28 04:59:50,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:50,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:59:50,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:50,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:59:50,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:59:50,839 INFO L87 Difference]: Start difference. First operand 1012 states and 1448 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 04:59:54,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:54,952 INFO L93 Difference]: Finished difference Result 1200 states and 1675 transitions. [2024-11-28 04:59:54,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:59:54,953 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 218 [2024-11-28 04:59:54,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:54,958 INFO L225 Difference]: With dead ends: 1200 [2024-11-28 04:59:54,958 INFO L226 Difference]: Without dead ends: 1198 [2024-11-28 04:59:54,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=154, Invalid=496, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:59:54,960 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 330 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:54,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1222 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 04:59:54,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2024-11-28 04:59:55,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1089. [2024-11-28 04:59:55,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 914 states have (on average 1.3336980306345734) internal successors, (1219), 914 states have internal predecessors, (1219), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:59:55,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1549 transitions. [2024-11-28 04:59:55,110 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1549 transitions. Word has length 218 [2024-11-28 04:59:55,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:55,111 INFO L471 AbstractCegarLoop]: Abstraction has 1089 states and 1549 transitions. [2024-11-28 04:59:55,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 04:59:55,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1549 transitions. [2024-11-28 04:59:55,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 04:59:55,114 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:55,114 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:55,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 04:59:55,115 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:55,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:55,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1288061463, now seen corresponding path program 1 times [2024-11-28 04:59:55,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:55,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448859869] [2024-11-28 04:59:55,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:55,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:01,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:00:01,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:01,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448859869] [2024-11-28 05:00:01,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448859869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:01,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:01,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 05:00:01,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522471713] [2024-11-28 05:00:01,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:01,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:00:01,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:01,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:00:01,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:00:01,703 INFO L87 Difference]: Start difference. First operand 1089 states and 1549 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:07,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:07,868 INFO L93 Difference]: Finished difference Result 1940 states and 2790 transitions. [2024-11-28 05:00:07,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 05:00:07,869 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 218 [2024-11-28 05:00:07,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:07,873 INFO L225 Difference]: With dead ends: 1940 [2024-11-28 05:00:07,873 INFO L226 Difference]: Without dead ends: 1402 [2024-11-28 05:00:07,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2024-11-28 05:00:07,875 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 281 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:07,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 792 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 05:00:07,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2024-11-28 05:00:07,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1087. [2024-11-28 05:00:07,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 912 states have (on average 1.332236842105263) internal successors, (1215), 912 states have internal predecessors, (1215), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:00:07,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1545 transitions. [2024-11-28 05:00:07,977 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1545 transitions. Word has length 218 [2024-11-28 05:00:07,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:07,978 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1545 transitions. [2024-11-28 05:00:07,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:07,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1545 transitions. [2024-11-28 05:00:07,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 05:00:07,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:07,981 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:07,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 05:00:07,981 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:07,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:07,982 INFO L85 PathProgramCache]: Analyzing trace with hash -608003093, now seen corresponding path program 1 times [2024-11-28 05:00:07,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:07,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584352242] [2024-11-28 05:00:07,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:07,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:15,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:00:15,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:15,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584352242] [2024-11-28 05:00:15,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584352242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:15,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:15,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 05:00:15,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777524387] [2024-11-28 05:00:15,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:15,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:00:15,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:15,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:00:15,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:00:15,661 INFO L87 Difference]: Start difference. First operand 1087 states and 1545 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:18,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:18,408 INFO L93 Difference]: Finished difference Result 1537 states and 2165 transitions. [2024-11-28 05:00:18,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:00:18,408 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 218 [2024-11-28 05:00:18,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:18,414 INFO L225 Difference]: With dead ends: 1537 [2024-11-28 05:00:18,415 INFO L226 Difference]: Without dead ends: 1285 [2024-11-28 05:00:18,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2024-11-28 05:00:18,417 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 258 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:18,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 872 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 05:00:18,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2024-11-28 05:00:18,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1071. [2024-11-28 05:00:18,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 896 states have (on average 1.3270089285714286) internal successors, (1189), 896 states have internal predecessors, (1189), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:00:18,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1519 transitions. [2024-11-28 05:00:18,503 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1519 transitions. Word has length 218 [2024-11-28 05:00:18,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:18,503 INFO L471 AbstractCegarLoop]: Abstraction has 1071 states and 1519 transitions. [2024-11-28 05:00:18,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:18,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1519 transitions. [2024-11-28 05:00:18,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-28 05:00:18,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:18,505 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:18,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 05:00:18,506 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:18,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:18,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1333752460, now seen corresponding path program 1 times [2024-11-28 05:00:18,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:18,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973578435] [2024-11-28 05:00:18,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:18,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:00:18,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:18,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973578435] [2024-11-28 05:00:18,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973578435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:18,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:18,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:00:18,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761067557] [2024-11-28 05:00:18,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:19,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:00:19,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:19,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:00:19,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:00:19,001 INFO L87 Difference]: Start difference. First operand 1071 states and 1519 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:19,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:19,912 INFO L93 Difference]: Finished difference Result 1760 states and 2519 transitions. [2024-11-28 05:00:19,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:00:19,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 219 [2024-11-28 05:00:19,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:19,922 INFO L225 Difference]: With dead ends: 1760 [2024-11-28 05:00:19,922 INFO L226 Difference]: Without dead ends: 1202 [2024-11-28 05:00:19,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:00:19,925 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 178 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:19,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 628 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:00:19,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2024-11-28 05:00:20,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1122. [2024-11-28 05:00:20,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 947 states have (on average 1.3157338965153116) internal successors, (1246), 947 states have internal predecessors, (1246), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:00:20,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1576 transitions. [2024-11-28 05:00:20,037 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1576 transitions. Word has length 219 [2024-11-28 05:00:20,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:20,038 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1576 transitions. [2024-11-28 05:00:20,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:20,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1576 transitions. [2024-11-28 05:00:20,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-28 05:00:20,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:20,040 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:20,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 05:00:20,041 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:20,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:20,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1632967414, now seen corresponding path program 1 times [2024-11-28 05:00:20,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:20,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084408345] [2024-11-28 05:00:20,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:20,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:20,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:00:20,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:20,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084408345] [2024-11-28 05:00:20,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084408345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:20,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:20,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:00:20,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64132869] [2024-11-28 05:00:20,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:20,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:00:20,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:20,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:00:20,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:20,630 INFO L87 Difference]: Start difference. First operand 1122 states and 1576 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:21,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:21,170 INFO L93 Difference]: Finished difference Result 1856 states and 2632 transitions. [2024-11-28 05:00:21,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:00:21,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 219 [2024-11-28 05:00:21,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:21,176 INFO L225 Difference]: With dead ends: 1856 [2024-11-28 05:00:21,177 INFO L226 Difference]: Without dead ends: 1177 [2024-11-28 05:00:21,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:00:21,179 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 133 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:21,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 496 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 05:00:21,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2024-11-28 05:00:21,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1121. [2024-11-28 05:00:21,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 946 states have (on average 1.3150105708245243) internal successors, (1244), 946 states have internal predecessors, (1244), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:00:21,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1574 transitions. [2024-11-28 05:00:21,276 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1574 transitions. Word has length 219 [2024-11-28 05:00:21,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:21,277 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1574 transitions. [2024-11-28 05:00:21,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:21,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1574 transitions. [2024-11-28 05:00:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-28 05:00:21,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:21,279 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:21,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 05:00:21,280 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:21,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:21,280 INFO L85 PathProgramCache]: Analyzing trace with hash 308380951, now seen corresponding path program 1 times [2024-11-28 05:00:21,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:21,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021834301] [2024-11-28 05:00:21,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:21,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:21,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:00:21,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:21,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021834301] [2024-11-28 05:00:21,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021834301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:21,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:21,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:00:21,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151996108] [2024-11-28 05:00:21,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:21,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:00:21,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:21,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:00:21,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:00:21,419 INFO L87 Difference]: Start difference. First operand 1121 states and 1574 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:21,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:21,663 INFO L93 Difference]: Finished difference Result 1871 states and 2695 transitions. [2024-11-28 05:00:21,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:00:21,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 221 [2024-11-28 05:00:21,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:21,670 INFO L225 Difference]: With dead ends: 1871 [2024-11-28 05:00:21,670 INFO L226 Difference]: Without dead ends: 1193 [2024-11-28 05:00:21,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:00:21,673 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 40 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:21,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 312 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:21,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-11-28 05:00:21,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1065. [2024-11-28 05:00:21,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 890 states have (on average 1.3438202247191011) internal successors, (1196), 890 states have internal predecessors, (1196), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:00:21,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1526 transitions. [2024-11-28 05:00:21,793 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1526 transitions. Word has length 221 [2024-11-28 05:00:21,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:21,793 INFO L471 AbstractCegarLoop]: Abstraction has 1065 states and 1526 transitions. [2024-11-28 05:00:21,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:21,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1526 transitions. [2024-11-28 05:00:21,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-28 05:00:21,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:21,795 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:21,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 05:00:21,795 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:21,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:21,795 INFO L85 PathProgramCache]: Analyzing trace with hash 186496068, now seen corresponding path program 1 times [2024-11-28 05:00:21,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:21,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323153729] [2024-11-28 05:00:21,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:21,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:22,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:00:22,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:22,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323153729] [2024-11-28 05:00:22,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323153729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:22,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:22,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:00:22,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515098100] [2024-11-28 05:00:22,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:22,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:00:22,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:22,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:00:22,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:00:22,092 INFO L87 Difference]: Start difference. First operand 1065 states and 1526 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:22,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:22,913 INFO L93 Difference]: Finished difference Result 1926 states and 2754 transitions. [2024-11-28 05:00:22,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:00:22,914 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 222 [2024-11-28 05:00:22,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:22,919 INFO L225 Difference]: With dead ends: 1926 [2024-11-28 05:00:22,919 INFO L226 Difference]: Without dead ends: 1234 [2024-11-28 05:00:22,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:00:22,922 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 148 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:22,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 734 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:00:22,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1234 states. [2024-11-28 05:00:23,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1234 to 1116. [2024-11-28 05:00:23,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 941 states have (on average 1.3358129649309245) internal successors, (1257), 941 states have internal predecessors, (1257), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:00:23,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1587 transitions. [2024-11-28 05:00:23,014 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1587 transitions. Word has length 222 [2024-11-28 05:00:23,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:23,015 INFO L471 AbstractCegarLoop]: Abstraction has 1116 states and 1587 transitions. [2024-11-28 05:00:23,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:23,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1587 transitions. [2024-11-28 05:00:23,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-28 05:00:23,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:23,016 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:23,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 05:00:23,016 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:23,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:23,017 INFO L85 PathProgramCache]: Analyzing trace with hash -46767024, now seen corresponding path program 1 times [2024-11-28 05:00:23,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:23,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726520474] [2024-11-28 05:00:23,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:23,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:23,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:00:23,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:23,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726520474] [2024-11-28 05:00:23,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726520474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:23,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:23,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:00:23,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583067979] [2024-11-28 05:00:23,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:23,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:00:23,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:23,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:00:23,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:00:23,314 INFO L87 Difference]: Start difference. First operand 1116 states and 1587 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:24,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:24,080 INFO L93 Difference]: Finished difference Result 1940 states and 2767 transitions. [2024-11-28 05:00:24,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:00:24,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 222 [2024-11-28 05:00:24,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:24,084 INFO L225 Difference]: With dead ends: 1940 [2024-11-28 05:00:24,084 INFO L226 Difference]: Without dead ends: 1236 [2024-11-28 05:00:24,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:00:24,086 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 158 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:24,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 741 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:00:24,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2024-11-28 05:00:24,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1081. [2024-11-28 05:00:24,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 906 states have (on average 1.3333333333333333) internal successors, (1208), 906 states have internal predecessors, (1208), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:00:24,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1538 transitions. [2024-11-28 05:00:24,174 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1538 transitions. Word has length 222 [2024-11-28 05:00:24,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:24,174 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1538 transitions. [2024-11-28 05:00:24,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:24,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1538 transitions. [2024-11-28 05:00:24,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-28 05:00:24,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:24,176 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:24,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 05:00:24,177 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:24,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:24,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1509336734, now seen corresponding path program 1 times [2024-11-28 05:00:24,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:24,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582996075] [2024-11-28 05:00:24,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:24,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:24,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:00:24,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:24,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582996075] [2024-11-28 05:00:24,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582996075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:24,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:24,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:00:24,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728590682] [2024-11-28 05:00:24,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:24,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:00:24,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:24,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:00:24,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:24,473 INFO L87 Difference]: Start difference. First operand 1081 states and 1538 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:24,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:24,946 INFO L93 Difference]: Finished difference Result 1835 states and 2641 transitions. [2024-11-28 05:00:24,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:00:24,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 225 [2024-11-28 05:00:24,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:24,952 INFO L225 Difference]: With dead ends: 1835 [2024-11-28 05:00:24,952 INFO L226 Difference]: Without dead ends: 1084 [2024-11-28 05:00:24,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:00:24,954 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 124 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:24,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 516 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:00:24,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2024-11-28 05:00:25,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1018. [2024-11-28 05:00:25,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 843 states have (on average 1.3440094899169632) internal successors, (1133), 843 states have internal predecessors, (1133), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:00:25,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1463 transitions. [2024-11-28 05:00:25,033 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1463 transitions. Word has length 225 [2024-11-28 05:00:25,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:25,034 INFO L471 AbstractCegarLoop]: Abstraction has 1018 states and 1463 transitions. [2024-11-28 05:00:25,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:25,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1463 transitions. [2024-11-28 05:00:25,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-28 05:00:25,036 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:25,036 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:25,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 05:00:25,036 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:25,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:25,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1153059011, now seen corresponding path program 1 times [2024-11-28 05:00:25,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:25,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508728466] [2024-11-28 05:00:25,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:25,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:27,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:00:27,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:27,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508728466] [2024-11-28 05:00:27,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508728466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:27,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:27,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 05:00:27,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185805315] [2024-11-28 05:00:27,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:27,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:00:27,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:27,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:00:27,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:00:27,414 INFO L87 Difference]: Start difference. First operand 1018 states and 1463 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:30,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:30,395 INFO L93 Difference]: Finished difference Result 1862 states and 2667 transitions. [2024-11-28 05:00:30,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:00:30,396 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 225 [2024-11-28 05:00:30,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:30,402 INFO L225 Difference]: With dead ends: 1862 [2024-11-28 05:00:30,403 INFO L226 Difference]: Without dead ends: 1174 [2024-11-28 05:00:30,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-11-28 05:00:30,405 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 277 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:30,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1183 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 05:00:30,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2024-11-28 05:00:30,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1062. [2024-11-28 05:00:30,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 887 states have (on average 1.3269447576099211) internal successors, (1177), 887 states have internal predecessors, (1177), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:00:30,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1507 transitions. [2024-11-28 05:00:30,571 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1507 transitions. Word has length 225 [2024-11-28 05:00:30,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:30,573 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1507 transitions. [2024-11-28 05:00:30,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:00:30,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1507 transitions. [2024-11-28 05:00:30,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-28 05:00:30,575 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:30,576 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:30,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 05:00:30,576 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:30,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:30,577 INFO L85 PathProgramCache]: Analyzing trace with hash 2120839931, now seen corresponding path program 1 times [2024-11-28 05:00:30,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:30,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052387679] [2024-11-28 05:00:30,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:30,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:01:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:01:04,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:01:04,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052387679] [2024-11-28 05:01:04,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052387679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:01:04,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:01:04,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 05:01:04,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463976455] [2024-11-28 05:01:04,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:01:04,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 05:01:04,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:01:04,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 05:01:04,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:01:04,165 INFO L87 Difference]: Start difference. First operand 1062 states and 1507 transitions. Second operand has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 05:01:11,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:01:11,099 INFO L93 Difference]: Finished difference Result 1276 states and 1737 transitions. [2024-11-28 05:01:11,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 05:01:11,100 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 225 [2024-11-28 05:01:11,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:01:11,104 INFO L225 Difference]: With dead ends: 1276 [2024-11-28 05:01:11,104 INFO L226 Difference]: Without dead ends: 1274 [2024-11-28 05:01:11,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=380, Invalid=1690, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 05:01:11,105 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 403 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:01:11,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1268 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 05:01:11,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2024-11-28 05:01:11,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1074. [2024-11-28 05:01:11,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 899 states have (on average 1.324805339265851) internal successors, (1191), 899 states have internal predecessors, (1191), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:01:11,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1521 transitions. [2024-11-28 05:01:11,203 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1521 transitions. Word has length 225 [2024-11-28 05:01:11,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:01:11,204 INFO L471 AbstractCegarLoop]: Abstraction has 1074 states and 1521 transitions. [2024-11-28 05:01:11,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 05:01:11,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1521 transitions. [2024-11-28 05:01:11,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-28 05:01:11,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:01:11,206 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:01:11,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 05:01:11,206 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:01:11,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:11,207 INFO L85 PathProgramCache]: Analyzing trace with hash -2112087751, now seen corresponding path program 1 times [2024-11-28 05:01:11,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:01:11,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589221343] [2024-11-28 05:01:11,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:01:11,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:01:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:17,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:02:17,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:17,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589221343] [2024-11-28 05:02:17,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589221343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:17,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:17,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-28 05:02:17,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105235267] [2024-11-28 05:02:17,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:17,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 05:02:17,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:17,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 05:02:17,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2024-11-28 05:02:17,825 INFO L87 Difference]: Start difference. First operand 1074 states and 1521 transitions. Second operand has 20 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 05:02:24,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:24,099 INFO L93 Difference]: Finished difference Result 1192 states and 1648 transitions. [2024-11-28 05:02:24,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 05:02:24,099 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 225 [2024-11-28 05:02:24,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:24,103 INFO L225 Difference]: With dead ends: 1192 [2024-11-28 05:02:24,103 INFO L226 Difference]: Without dead ends: 1190 [2024-11-28 05:02:24,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=322, Invalid=1160, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 05:02:24,104 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 504 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:24,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 1478 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 05:02:24,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2024-11-28 05:02:24,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 1070. [2024-11-28 05:02:24,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 895 states have (on average 1.324022346368715) internal successors, (1185), 895 states have internal predecessors, (1185), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:02:24,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1515 transitions. [2024-11-28 05:02:24,254 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1515 transitions. Word has length 225 [2024-11-28 05:02:24,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:24,254 INFO L471 AbstractCegarLoop]: Abstraction has 1070 states and 1515 transitions. [2024-11-28 05:02:24,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 05:02:24,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1515 transitions. [2024-11-28 05:02:24,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-28 05:02:24,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:24,257 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:02:24,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 05:02:24,257 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:02:24,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:24,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1965596799, now seen corresponding path program 1 times [2024-11-28 05:02:24,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:24,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143397381] [2024-11-28 05:02:24,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:24,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:24,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:02:24,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:24,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143397381] [2024-11-28 05:02:24,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143397381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:24,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:24,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 05:02:24,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008952694] [2024-11-28 05:02:24,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:24,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:02:24,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:24,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:02:24,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:02:24,788 INFO L87 Difference]: Start difference. First operand 1070 states and 1515 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:02:26,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:26,148 INFO L93 Difference]: Finished difference Result 1956 states and 2760 transitions. [2024-11-28 05:02:26,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:02:26,149 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 225 [2024-11-28 05:02:26,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:26,155 INFO L225 Difference]: With dead ends: 1956 [2024-11-28 05:02:26,155 INFO L226 Difference]: Without dead ends: 1244 [2024-11-28 05:02:26,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-28 05:02:26,157 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 204 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:26,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 970 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 05:02:26,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2024-11-28 05:02:26,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1070. [2024-11-28 05:02:26,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 895 states have (on average 1.3195530726256983) internal successors, (1181), 895 states have internal predecessors, (1181), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:02:26,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1511 transitions. [2024-11-28 05:02:26,256 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1511 transitions. Word has length 225 [2024-11-28 05:02:26,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:26,257 INFO L471 AbstractCegarLoop]: Abstraction has 1070 states and 1511 transitions. [2024-11-28 05:02:26,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:02:26,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1511 transitions. [2024-11-28 05:02:26,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-28 05:02:26,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:26,258 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:02:26,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 05:02:26,259 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:02:26,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:26,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1236856562, now seen corresponding path program 1 times [2024-11-28 05:02:26,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:26,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163959451] [2024-11-28 05:02:26,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:26,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:26,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:03:26,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:26,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163959451] [2024-11-28 05:03:26,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163959451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:03:26,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:03:26,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-28 05:03:26,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699794293] [2024-11-28 05:03:26,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:03:26,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 05:03:26,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:26,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 05:03:26,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2024-11-28 05:03:26,892 INFO L87 Difference]: Start difference. First operand 1070 states and 1511 transitions. Second operand has 21 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 21 states have internal predecessors, (64), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 05:03:33,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:33,300 INFO L93 Difference]: Finished difference Result 1222 states and 1674 transitions. [2024-11-28 05:03:33,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 05:03:33,301 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 21 states have internal predecessors, (64), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 226 [2024-11-28 05:03:33,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:33,305 INFO L225 Difference]: With dead ends: 1222 [2024-11-28 05:03:33,305 INFO L226 Difference]: Without dead ends: 1220 [2024-11-28 05:03:33,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=331, Invalid=1475, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 05:03:33,306 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 538 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:33,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 1294 Invalid, 2119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-28 05:03:33,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2024-11-28 05:03:33,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1082. [2024-11-28 05:03:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 907 states have (on average 1.3175303197353914) internal successors, (1195), 907 states have internal predecessors, (1195), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:03:33,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1525 transitions. [2024-11-28 05:03:33,453 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1525 transitions. Word has length 226 [2024-11-28 05:03:33,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:33,453 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1525 transitions. [2024-11-28 05:03:33,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 21 states have internal predecessors, (64), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 05:03:33,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1525 transitions. [2024-11-28 05:03:33,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-28 05:03:33,455 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:33,455 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:03:33,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-28 05:03:33,455 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:03:33,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:33,456 INFO L85 PathProgramCache]: Analyzing trace with hash 686371472, now seen corresponding path program 1 times [2024-11-28 05:03:33,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:33,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992512231] [2024-11-28 05:03:33,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:33,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:03:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:04,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:04:04,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:04,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992512231] [2024-11-28 05:04:04,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992512231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:04,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:04,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-28 05:04:04,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107090100] [2024-11-28 05:04:04,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:04,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 05:04:04,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:04,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 05:04:04,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2024-11-28 05:04:04,203 INFO L87 Difference]: Start difference. First operand 1082 states and 1525 transitions. Second operand has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 05:04:13,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:13,130 INFO L93 Difference]: Finished difference Result 1250 states and 1702 transitions. [2024-11-28 05:04:13,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 05:04:13,130 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 226 [2024-11-28 05:04:13,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:13,135 INFO L225 Difference]: With dead ends: 1250 [2024-11-28 05:04:13,135 INFO L226 Difference]: Without dead ends: 1248 [2024-11-28 05:04:13,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=446, Invalid=1716, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 05:04:13,137 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 333 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 2065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:13,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 1416 Invalid, 2065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-28 05:04:13,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2024-11-28 05:04:13,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1094. [2024-11-28 05:04:13,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 919 states have (on average 1.3155603917301415) internal successors, (1209), 919 states have internal predecessors, (1209), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:04:13,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1539 transitions. [2024-11-28 05:04:13,225 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1539 transitions. Word has length 226 [2024-11-28 05:04:13,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:13,226 INFO L471 AbstractCegarLoop]: Abstraction has 1094 states and 1539 transitions. [2024-11-28 05:04:13,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 05:04:13,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1539 transitions. [2024-11-28 05:04:13,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 05:04:13,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:13,227 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:13,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-28 05:04:13,228 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:13,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:13,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1928201068, now seen corresponding path program 1 times [2024-11-28 05:04:13,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:13,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256551399] [2024-11-28 05:04:13,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:13,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:13,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:04:13,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:13,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256551399] [2024-11-28 05:04:13,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256551399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:13,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:13,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:04:13,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777704518] [2024-11-28 05:04:13,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:13,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:04:13,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:13,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:04:13,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:04:13,885 INFO L87 Difference]: Start difference. First operand 1094 states and 1539 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:04:14,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:14,966 INFO L93 Difference]: Finished difference Result 1880 states and 2672 transitions. [2024-11-28 05:04:14,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:04:14,967 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 229 [2024-11-28 05:04:14,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:14,970 INFO L225 Difference]: With dead ends: 1880 [2024-11-28 05:04:14,970 INFO L226 Difference]: Without dead ends: 1133 [2024-11-28 05:04:14,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:04:14,972 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 161 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:14,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 802 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:04:14,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2024-11-28 05:04:15,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1035. [2024-11-28 05:04:15,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 860 states have (on average 1.3244186046511628) internal successors, (1139), 860 states have internal predecessors, (1139), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:04:15,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1469 transitions. [2024-11-28 05:04:15,071 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1469 transitions. Word has length 229 [2024-11-28 05:04:15,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:15,072 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1469 transitions. [2024-11-28 05:04:15,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-28 05:04:15,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1469 transitions. [2024-11-28 05:04:15,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-28 05:04:15,074 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:15,074 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:15,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-28 05:04:15,074 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:15,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:15,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1693602857, now seen corresponding path program 1 times [2024-11-28 05:04:15,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:15,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197101539] [2024-11-28 05:04:15,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:15,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:40,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:04:40,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:40,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197101539] [2024-11-28 05:04:40,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197101539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:40,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:40,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 05:04:40,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090047103] [2024-11-28 05:04:40,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:40,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 05:04:40,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:40,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 05:04:40,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-11-28 05:04:40,263 INFO L87 Difference]: Start difference. First operand 1035 states and 1469 transitions. Second operand has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 19 states have internal predecessors, (68), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 05:04:44,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:45,000 INFO L93 Difference]: Finished difference Result 1135 states and 1573 transitions. [2024-11-28 05:04:45,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 05:04:45,000 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 19 states have internal predecessors, (68), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 230 [2024-11-28 05:04:45,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:45,005 INFO L225 Difference]: With dead ends: 1135 [2024-11-28 05:04:45,005 INFO L226 Difference]: Without dead ends: 1133 [2024-11-28 05:04:45,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=227, Invalid=895, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 05:04:45,006 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 287 mSDsluCounter, 1350 mSDsCounter, 0 mSdLazyCounter, 1878 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 2006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:45,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 1508 Invalid, 2006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1878 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-28 05:04:45,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2024-11-28 05:04:45,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1027. [2024-11-28 05:04:45,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 852 states have (on average 1.3251173708920188) internal successors, (1129), 852 states have internal predecessors, (1129), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:04:45,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1459 transitions. [2024-11-28 05:04:45,161 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1459 transitions. Word has length 230 [2024-11-28 05:04:45,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:45,161 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1459 transitions. [2024-11-28 05:04:45,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 19 states have internal predecessors, (68), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 05:04:45,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1459 transitions. [2024-11-28 05:04:45,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-28 05:04:45,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:45,163 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:45,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-28 05:04:45,164 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:45,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:45,164 INFO L85 PathProgramCache]: Analyzing trace with hash 229625177, now seen corresponding path program 1 times [2024-11-28 05:04:45,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:45,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900711420] [2024-11-28 05:04:45,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:45,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:15,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 05:05:15,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:15,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900711420] [2024-11-28 05:05:15,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900711420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:15,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:15,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-28 05:05:15,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688522368] [2024-11-28 05:05:15,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:15,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 05:05:15,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:15,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 05:05:15,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2024-11-28 05:05:15,262 INFO L87 Difference]: Start difference. First operand 1027 states and 1459 transitions. Second operand has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 05:05:19,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:19,948 INFO L93 Difference]: Finished difference Result 1129 states and 1567 transitions. [2024-11-28 05:05:19,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 05:05:19,949 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 230 [2024-11-28 05:05:19,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:19,952 INFO L225 Difference]: With dead ends: 1129 [2024-11-28 05:05:19,952 INFO L226 Difference]: Without dead ends: 1127 [2024-11-28 05:05:19,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=223, Invalid=899, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 05:05:19,953 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 347 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:19,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1415 Invalid, 1836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 05:05:19,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2024-11-28 05:05:20,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1019. [2024-11-28 05:05:20,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 844 states have (on average 1.3258293838862558) internal successors, (1119), 844 states have internal predecessors, (1119), 165 states have call successors, (165), 9 states have call predecessors, (165), 9 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 05:05:20,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1449 transitions. [2024-11-28 05:05:20,085 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1449 transitions. Word has length 230 [2024-11-28 05:05:20,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:20,086 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1449 transitions. [2024-11-28 05:05:20,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-28 05:05:20,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1449 transitions. [2024-11-28 05:05:20,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2024-11-28 05:05:20,090 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:20,090 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:20,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-28 05:05:20,091 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:20,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:20,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1764759547, now seen corresponding path program 1 times [2024-11-28 05:05:20,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:20,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408954928] [2024-11-28 05:05:20,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:20,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:20,842 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-11-28 05:05:20,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:20,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408954928] [2024-11-28 05:05:20,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408954928] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:05:20,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149421941] [2024-11-28 05:05:20,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:20,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:20,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:20,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:05:20,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:05:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:21,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:05:21,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:05:21,529 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 4431 proven. 2 refuted. 0 times theorem prover too weak. 4224 trivial. 0 not checked. [2024-11-28 05:05:21,529 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:05:22,062 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 76 proven. 1 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-11-28 05:05:22,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149421941] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:05:22,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:05:22,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 10 [2024-11-28 05:05:22,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772616608] [2024-11-28 05:05:22,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:05:22,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:05:22,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:22,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:05:22,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:05:22,066 INFO L87 Difference]: Start difference. First operand 1019 states and 1449 transitions. Second operand has 10 states, 10 states have (on average 20.4) internal successors, (204), 10 states have internal predecessors, (204), 4 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 4 states have call predecessors, (132), 4 states have call successors, (132) [2024-11-28 05:05:23,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:23,019 INFO L93 Difference]: Finished difference Result 3321 states and 4698 transitions. [2024-11-28 05:05:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:05:23,020 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.4) internal successors, (204), 10 states have internal predecessors, (204), 4 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 4 states have call predecessors, (132), 4 states have call successors, (132) Word has length 427 [2024-11-28 05:05:23,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:23,030 INFO L225 Difference]: With dead ends: 3321 [2024-11-28 05:05:23,030 INFO L226 Difference]: Without dead ends: 2981 [2024-11-28 05:05:23,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 869 GetRequests, 854 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2024-11-28 05:05:23,032 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 1405 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:23,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1405 Valid, 737 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:05:23,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2024-11-28 05:05:23,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1566. [2024-11-28 05:05:23,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1339 states have (on average 1.3248693054518297) internal successors, (1774), 1343 states have internal predecessors, (1774), 209 states have call successors, (209), 17 states have call predecessors, (209), 17 states have return successors, (209), 205 states have call predecessors, (209), 209 states have call successors, (209) [2024-11-28 05:05:23,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 2192 transitions. [2024-11-28 05:05:23,260 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 2192 transitions. Word has length 427 [2024-11-28 05:05:23,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:23,261 INFO L471 AbstractCegarLoop]: Abstraction has 1566 states and 2192 transitions. [2024-11-28 05:05:23,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.4) internal successors, (204), 10 states have internal predecessors, (204), 4 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 4 states have call predecessors, (132), 4 states have call successors, (132) [2024-11-28 05:05:23,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 2192 transitions. [2024-11-28 05:05:23,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2024-11-28 05:05:23,266 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:23,266 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:23,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:05:23,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:23,471 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:23,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:23,471 INFO L85 PathProgramCache]: Analyzing trace with hash 575966973, now seen corresponding path program 1 times [2024-11-28 05:05:23,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:23,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217388611] [2024-11-28 05:05:23,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:23,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:24,145 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 16 proven. 61 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-11-28 05:05:24,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:24,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217388611] [2024-11-28 05:05:24,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217388611] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:05:24,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038632504] [2024-11-28 05:05:24,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:24,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:24,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:24,152 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:05:24,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:05:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:24,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 05:05:24,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:05:25,118 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 991 proven. 4483 refuted. 0 times theorem prover too weak. 3183 trivial. 0 not checked. [2024-11-28 05:05:25,119 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:05:25,670 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 190 proven. 63 refuted. 0 times theorem prover too weak. 8404 trivial. 0 not checked. [2024-11-28 05:05:25,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038632504] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:05:25,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:05:25,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 6] total 19 [2024-11-28 05:05:25,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595246174] [2024-11-28 05:05:25,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:05:25,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 05:05:25,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:25,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 05:05:25,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-28 05:05:25,673 INFO L87 Difference]: Start difference. First operand 1566 states and 2192 transitions. Second operand has 19 states, 19 states have (on average 12.789473684210526) internal successors, (243), 19 states have internal predecessors, (243), 5 states have call successors, (174), 3 states have call predecessors, (174), 5 states have return successors, (176), 5 states have call predecessors, (176), 5 states have call successors, (176) [2024-11-28 05:05:29,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:29,132 INFO L93 Difference]: Finished difference Result 3196 states and 4528 transitions. [2024-11-28 05:05:29,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-28 05:05:29,132 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 12.789473684210526) internal successors, (243), 19 states have internal predecessors, (243), 5 states have call successors, (174), 3 states have call predecessors, (174), 5 states have return successors, (176), 5 states have call predecessors, (176), 5 states have call successors, (176) Word has length 427 [2024-11-28 05:05:29,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:29,140 INFO L225 Difference]: With dead ends: 3196 [2024-11-28 05:05:29,140 INFO L226 Difference]: Without dead ends: 1961 [2024-11-28 05:05:29,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 855 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1089 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=670, Invalid=3236, Unknown=0, NotChecked=0, Total=3906 [2024-11-28 05:05:29,143 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 3067 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 1193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3068 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 3136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1193 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:29,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3068 Valid, 2425 Invalid, 3136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1193 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 05:05:29,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2024-11-28 05:05:29,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1470. [2024-11-28 05:05:29,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1215 states have (on average 1.3176954732510289) internal successors, (1601), 1218 states have internal predecessors, (1601), 231 states have call successors, (231), 23 states have call predecessors, (231), 23 states have return successors, (231), 228 states have call predecessors, (231), 231 states have call successors, (231) [2024-11-28 05:05:29,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 2063 transitions. [2024-11-28 05:05:29,440 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 2063 transitions. Word has length 427 [2024-11-28 05:05:29,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:29,441 INFO L471 AbstractCegarLoop]: Abstraction has 1470 states and 2063 transitions. [2024-11-28 05:05:29,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.789473684210526) internal successors, (243), 19 states have internal predecessors, (243), 5 states have call successors, (174), 3 states have call predecessors, (174), 5 states have return successors, (176), 5 states have call predecessors, (176), 5 states have call successors, (176) [2024-11-28 05:05:29,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 2063 transitions. [2024-11-28 05:05:29,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-28 05:05:29,446 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:29,446 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:29,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:05:29,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:29,651 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:29,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:29,651 INFO L85 PathProgramCache]: Analyzing trace with hash -7177152, now seen corresponding path program 1 times [2024-11-28 05:05:29,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:29,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71844115] [2024-11-28 05:05:29,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:29,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:30,123 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 16 proven. 61 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-11-28 05:05:30,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:30,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71844115] [2024-11-28 05:05:30,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71844115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:05:30,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855360969] [2024-11-28 05:05:30,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:30,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:30,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:30,127 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:05:30,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:05:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:30,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:05:30,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:05:30,780 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 4407 proven. 90 refuted. 0 times theorem prover too weak. 4160 trivial. 0 not checked. [2024-11-28 05:05:30,780 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:05:31,170 INFO L134 CoverageAnalysis]: Checked inductivity of 8657 backedges. 177 proven. 90 refuted. 0 times theorem prover too weak. 8390 trivial. 0 not checked. [2024-11-28 05:05:31,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855360969] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:05:31,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:05:31,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2024-11-28 05:05:31,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227925939] [2024-11-28 05:05:31,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:05:31,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:05:31,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:31,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:05:31,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:05:31,173 INFO L87 Difference]: Start difference. First operand 1470 states and 2063 transitions. Second operand has 13 states, 13 states have (on average 14.538461538461538) internal successors, (189), 13 states have internal predecessors, (189), 4 states have call successors, (159), 2 states have call predecessors, (159), 4 states have return successors, (161), 4 states have call predecessors, (161), 4 states have call successors, (161) [2024-11-28 05:05:33,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:33,467 INFO L93 Difference]: Finished difference Result 2978 states and 4183 transitions. [2024-11-28 05:05:33,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-28 05:05:33,467 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 14.538461538461538) internal successors, (189), 13 states have internal predecessors, (189), 4 states have call successors, (159), 2 states have call predecessors, (159), 4 states have return successors, (161), 4 states have call predecessors, (161), 4 states have call successors, (161) Word has length 428 [2024-11-28 05:05:33,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:33,474 INFO L225 Difference]: With dead ends: 2978 [2024-11-28 05:05:33,474 INFO L226 Difference]: Without dead ends: 1770 [2024-11-28 05:05:33,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 905 GetRequests, 859 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=477, Invalid=1685, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 05:05:33,478 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 1412 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:33,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1412 Valid, 1046 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 05:05:33,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2024-11-28 05:05:33,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1257. [2024-11-28 05:05:33,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 993 states have (on average 1.2930513595166162) internal successors, (1284), 996 states have internal predecessors, (1284), 231 states have call successors, (231), 32 states have call predecessors, (231), 32 states have return successors, (231), 228 states have call predecessors, (231), 231 states have call successors, (231) [2024-11-28 05:05:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1746 transitions. [2024-11-28 05:05:33,750 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1746 transitions. Word has length 428 [2024-11-28 05:05:33,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:33,751 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1746 transitions. [2024-11-28 05:05:33,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.538461538461538) internal successors, (189), 13 states have internal predecessors, (189), 4 states have call successors, (159), 2 states have call predecessors, (159), 4 states have return successors, (161), 4 states have call predecessors, (161), 4 states have call successors, (161) [2024-11-28 05:05:33,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1746 transitions. [2024-11-28 05:05:33,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-28 05:05:33,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:33,756 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:33,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:05:33,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:33,957 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:33,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:33,958 INFO L85 PathProgramCache]: Analyzing trace with hash -337218239, now seen corresponding path program 1 times [2024-11-28 05:05:33,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:33,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79283287] [2024-11-28 05:05:33,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:33,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:37,808 INFO L134 CoverageAnalysis]: Checked inductivity of 8658 backedges. 8 proven. 70 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-11-28 05:05:37,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:37,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79283287] [2024-11-28 05:05:37,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79283287] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:05:37,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277040982] [2024-11-28 05:05:37,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:37,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:37,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:37,810 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:05:37,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:05:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:38,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 05:05:38,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:05:41,649 INFO L134 CoverageAnalysis]: Checked inductivity of 8658 backedges. 282 proven. 4518 refuted. 0 times theorem prover too weak. 3858 trivial. 0 not checked. [2024-11-28 05:05:41,649 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:05:44,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277040982] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:05:44,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:05:44,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 19 [2024-11-28 05:05:44,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512036762] [2024-11-28 05:05:44,682 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:05:44,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 05:05:44,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:44,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 05:05:44,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2024-11-28 05:05:44,683 INFO L87 Difference]: Start difference. First operand 1257 states and 1746 transitions. Second operand has 19 states, 19 states have (on average 7.947368421052632) internal successors, (151), 19 states have internal predecessors, (151), 3 states have call successors, (132), 4 states have call predecessors, (132), 5 states have return successors, (132), 3 states have call predecessors, (132), 3 states have call successors, (132) [2024-11-28 05:05:49,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:49,008 INFO L93 Difference]: Finished difference Result 3118 states and 4318 transitions. [2024-11-28 05:05:49,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 05:05:49,008 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.947368421052632) internal successors, (151), 19 states have internal predecessors, (151), 3 states have call successors, (132), 4 states have call predecessors, (132), 5 states have return successors, (132), 3 states have call predecessors, (132), 3 states have call successors, (132) Word has length 428 [2024-11-28 05:05:49,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:49,016 INFO L225 Difference]: With dead ends: 3118 [2024-11-28 05:05:49,016 INFO L226 Difference]: Without dead ends: 2147 [2024-11-28 05:05:49,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 449 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=409, Invalid=1571, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 05:05:49,020 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 865 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:49,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 2475 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 05:05:49,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2024-11-28 05:05:49,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 1710. [2024-11-28 05:05:49,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1710 states, 1358 states have (on average 1.2901325478645067) internal successors, (1752), 1362 states have internal predecessors, (1752), 308 states have call successors, (308), 43 states have call predecessors, (308), 43 states have return successors, (308), 304 states have call predecessors, (308), 308 states have call successors, (308) [2024-11-28 05:05:49,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1710 states to 1710 states and 2368 transitions. [2024-11-28 05:05:49,374 INFO L78 Accepts]: Start accepts. Automaton has 1710 states and 2368 transitions. Word has length 428 [2024-11-28 05:05:49,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:49,374 INFO L471 AbstractCegarLoop]: Abstraction has 1710 states and 2368 transitions. [2024-11-28 05:05:49,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.947368421052632) internal successors, (151), 19 states have internal predecessors, (151), 3 states have call successors, (132), 4 states have call predecessors, (132), 5 states have return successors, (132), 3 states have call predecessors, (132), 3 states have call successors, (132) [2024-11-28 05:05:49,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1710 states and 2368 transitions. [2024-11-28 05:05:49,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-28 05:05:49,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:49,381 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:49,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 05:05:49,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-28 05:05:49,582 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:49,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:49,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1348335489, now seen corresponding path program 1 times [2024-11-28 05:05:49,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:49,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349483502] [2024-11-28 05:05:49,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:49,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:53,788 INFO L134 CoverageAnalysis]: Checked inductivity of 8658 backedges. 5 proven. 73 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-11-28 05:05:53,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:53,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349483502] [2024-11-28 05:05:53,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349483502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:05:53,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832254422] [2024-11-28 05:05:53,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:53,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:53,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:53,793 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:05:53,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb05e5b-9905-4e61-91b2-c11e1d010a24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:05:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:54,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 914 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 05:05:54,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:06:10,781 INFO L134 CoverageAnalysis]: Checked inductivity of 8658 backedges. 883 proven. 4498 refuted. 0 times theorem prover too weak. 3277 trivial. 0 not checked. [2024-11-28 05:06:10,781 INFO L312 TraceCheckSpWp]: Computing backward predicates...