./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-2.c --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_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1 --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 5d96188e8fe998bfd3065ae27ea6234f9d513096a1254a43c8a37ba002e37de6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 23:01:28,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 23:01:28,154 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-01 23:01:28,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 23:01:28,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 23:01:28,182 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 23:01:28,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 23:01:28,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 23:01:28,183 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 23:01:28,183 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 23:01:28,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 23:01:28,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 23:01:28,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 23:01:28,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 23:01:28,184 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 23:01:28,184 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 23:01:28,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 23:01:28,184 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 23:01:28,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 23:01:28,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 23:01:28,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 23:01:28,184 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 23:01:28,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 23:01:28,185 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 23:01:28,185 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 23:01:28,185 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 23:01:28,185 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 23:01:28,185 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 23:01:28,185 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 23:01:28,185 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:01:28,185 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:01:28,185 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:01:28,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:01:28,185 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 23:01:28,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:01:28,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:01:28,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:01:28,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:01:28,186 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 23:01:28,186 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 23:01:28,186 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 23:01:28,186 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 23:01:28,186 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 23:01:28,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 23:01:28,186 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 23:01:28,187 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 23:01:28,187 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 23:01:28,187 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 23:01:28,187 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_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1 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 -> 5d96188e8fe998bfd3065ae27ea6234f9d513096a1254a43c8a37ba002e37de6 [2024-12-01 23:01:28,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 23:01:28,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 23:01:28,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 23:01:28,441 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 23:01:28,442 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 23:01:28,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-2.c [2024-12-01 23:01:31,133 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1/data/f7e79f7c1/63023913e94e4c6fa0633940df2f22ad/FLAG4bfc1f2ba [2024-12-01 23:01:31,706 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 23:01:31,706 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccad73be-b3d9-4770-a5a3-869f78dc15be/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-2.c [2024-12-01 23:01:31,749 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1/data/f7e79f7c1/63023913e94e4c6fa0633940df2f22ad/FLAG4bfc1f2ba [2024-12-01 23:01:31,763 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1/data/f7e79f7c1/63023913e94e4c6fa0633940df2f22ad [2024-12-01 23:01:31,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 23:01:31,767 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 23:01:31,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 23:01:31,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 23:01:31,772 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 23:01:31,773 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:01:31" (1/1) ... [2024-12-01 23:01:31,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5370c607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:31, skipping insertion in model container [2024-12-01 23:01:31,774 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:01:31" (1/1) ... [2024-12-01 23:01:31,925 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 23:01:33,305 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_ccad73be-b3d9-4770-a5a3-869f78dc15be/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-2.c[380593,380606] [2024-12-01 23:01:33,331 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_ccad73be-b3d9-4770-a5a3-869f78dc15be/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-2.c[383339,383352] [2024-12-01 23:01:33,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:01:33,609 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 23:01:34,368 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_ccad73be-b3d9-4770-a5a3-869f78dc15be/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-2.c[380593,380606] [2024-12-01 23:01:34,372 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_ccad73be-b3d9-4770-a5a3-869f78dc15be/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-2.c[383339,383352] [2024-12-01 23:01:34,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:01:34,455 INFO L204 MainTranslator]: Completed translation [2024-12-01 23:01:34,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34 WrapperNode [2024-12-01 23:01:34,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 23:01:34,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 23:01:34,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 23:01:34,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 23:01:34,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34" (1/1) ... [2024-12-01 23:01:34,519 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34" (1/1) ... [2024-12-01 23:01:34,862 INFO L138 Inliner]: procedures = 66, calls = 74, calls flagged for inlining = 44, calls inlined = 44, statements flattened = 13158 [2024-12-01 23:01:34,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 23:01:34,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 23:01:34,863 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 23:01:34,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 23:01:34,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34" (1/1) ... [2024-12-01 23:01:34,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34" (1/1) ... [2024-12-01 23:01:34,932 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34" (1/1) ... [2024-12-01 23:01:34,986 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]. [2024-12-01 23:01:34,987 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34" (1/1) ... [2024-12-01 23:01:34,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34" (1/1) ... [2024-12-01 23:01:35,116 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34" (1/1) ... [2024-12-01 23:01:35,131 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34" (1/1) ... [2024-12-01 23:01:35,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34" (1/1) ... [2024-12-01 23:01:35,191 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34" (1/1) ... [2024-12-01 23:01:35,267 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34" (1/1) ... [2024-12-01 23:01:35,314 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 23:01:35,316 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 23:01:35,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 23:01:35,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 23:01:35,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34" (1/1) ... [2024-12-01 23:01:35,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:01:35,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:01:35,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 23:01:35,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccad73be-b3d9-4770-a5a3-869f78dc15be/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 23:01:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 23:01:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-12-01 23:01:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-12-01 23:01:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-12-01 23:01:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-12-01 23:01:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-12-01 23:01:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-12-01 23:01:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-12-01 23:01:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-12-01 23:01:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-12-01 23:01:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-12-01 23:01:35,383 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-12-01 23:01:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-12-01 23:01:35,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 23:01:35,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 23:01:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 23:01:35,544 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 23:01:35,546 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 23:01:43,094 INFO L? ?]: Removed 1749 outVars from TransFormulas that were not future-live. [2024-12-01 23:01:43,094 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 23:01:43,142 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 23:01:43,142 INFO L312 CfgBuilder]: Removed 30 assume(true) statements. [2024-12-01 23:01:43,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:01:43 BoogieIcfgContainer [2024-12-01 23:01:43,142 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 23:01:43,145 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 23:01:43,145 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 23:01:43,150 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 23:01:43,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:01:31" (1/3) ... [2024-12-01 23:01:43,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52101594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:01:43, skipping insertion in model container [2024-12-01 23:01:43,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:01:34" (2/3) ... [2024-12-01 23:01:43,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52101594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:01:43, skipping insertion in model container [2024-12-01 23:01:43,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:01:43" (3/3) ... [2024-12-01 23:01:43,152 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.11.cil-2.c [2024-12-01 23:01:43,166 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 23:01:43,169 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label49+token_ring.11.cil-2.c that has 7 procedures, 2538 locations, 1 initial locations, 15 loop locations, and 2 error locations. [2024-12-01 23:01:43,270 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:01:43,281 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;@1b686700, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:01:43,281 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-01 23:01:43,292 INFO L276 IsEmpty]: Start isEmpty. Operand has 2538 states, 2505 states have (on average 1.844311377245509) internal successors, (4620), 2507 states have internal predecessors, (4620), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-01 23:01:43,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-01 23:01:43,304 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:01:43,304 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:01:43,305 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:01:43,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:01:43,310 INFO L85 PathProgramCache]: Analyzing trace with hash -21151577, now seen corresponding path program 1 times [2024-12-01 23:01:43,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:01:43,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659765155] [2024-12-01 23:01:43,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:01:43,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:01:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:01:43,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:01:43,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:01:43,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659765155] [2024-12-01 23:01:43,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659765155] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:01:43,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:01:43,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:01:43,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260150438] [2024-12-01 23:01:43,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:01:43,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:01:43,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:01:43,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:01:43,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:01:43,692 INFO L87 Difference]: Start difference. First operand has 2538 states, 2505 states have (on average 1.844311377245509) internal successors, (4620), 2507 states have internal predecessors, (4620), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:43,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:01:43,874 INFO L93 Difference]: Finished difference Result 5064 states and 9317 transitions. [2024-12-01 23:01:43,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:01:43,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 165 [2024-12-01 23:01:43,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:01:43,897 INFO L225 Difference]: With dead ends: 5064 [2024-12-01 23:01:43,897 INFO L226 Difference]: Without dead ends: 2471 [2024-12-01 23:01:43,904 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 [2024-12-01 23:01:43,907 INFO L435 NwaCegarLoop]: 4577 mSDtfsCounter, 544 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 8599 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:01:43,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 8599 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:01:43,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2024-12-01 23:01:44,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2471. [2024-12-01 23:01:44,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2438 states have (on average 1.8289581624282198) internal successors, (4459), 2440 states have internal predecessors, (4459), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-01 23:01:44,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 4509 transitions. [2024-12-01 23:01:44,030 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 4509 transitions. Word has length 165 [2024-12-01 23:01:44,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:01:44,031 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 4509 transitions. [2024-12-01 23:01:44,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:44,032 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 4509 transitions. [2024-12-01 23:01:44,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-01 23:01:44,036 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:01:44,036 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:01:44,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 23:01:44,036 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:01:44,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:01:44,037 INFO L85 PathProgramCache]: Analyzing trace with hash 902015849, now seen corresponding path program 1 times [2024-12-01 23:01:44,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:01:44,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943855117] [2024-12-01 23:01:44,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:01:44,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:01:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:01:44,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:01:44,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:01:44,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943855117] [2024-12-01 23:01:44,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943855117] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:01:44,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:01:44,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:01:44,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822459242] [2024-12-01 23:01:44,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:01:44,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:01:44,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:01:44,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:01:44,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:01:44,399 INFO L87 Difference]: Start difference. First operand 2471 states and 4509 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:45,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:01:45,233 INFO L93 Difference]: Finished difference Result 3177 states and 5637 transitions. [2024-12-01 23:01:45,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:01:45,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 165 [2024-12-01 23:01:45,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:01:45,249 INFO L225 Difference]: With dead ends: 3177 [2024-12-01 23:01:45,249 INFO L226 Difference]: Without dead ends: 2846 [2024-12-01 23:01:45,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:01:45,252 INFO L435 NwaCegarLoop]: 4385 mSDtfsCounter, 5021 mSDsluCounter, 9004 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5040 SdHoareTripleChecker+Valid, 13389 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:01:45,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5040 Valid, 13389 Invalid, 645 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 23:01:45,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2024-12-01 23:01:45,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2819. [2024-12-01 23:01:45,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2759 states have (on average 1.802102210945995) internal successors, (4972), 2762 states have internal predecessors, (4972), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2024-12-01 23:01:45,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 5063 transitions. [2024-12-01 23:01:45,363 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 5063 transitions. Word has length 165 [2024-12-01 23:01:45,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:01:45,364 INFO L471 AbstractCegarLoop]: Abstraction has 2819 states and 5063 transitions. [2024-12-01 23:01:45,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:45,364 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 5063 transitions. [2024-12-01 23:01:45,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-01 23:01:45,367 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:01:45,368 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:01:45,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 23:01:45,368 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:01:45,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:01:45,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1752217069, now seen corresponding path program 1 times [2024-12-01 23:01:45,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:01:45,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490714816] [2024-12-01 23:01:45,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:01:45,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:01:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:01:45,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:01:45,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:01:45,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490714816] [2024-12-01 23:01:45,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490714816] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:01:45,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:01:45,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:01:45,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481982240] [2024-12-01 23:01:45,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:01:45,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:01:45,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:01:45,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:01:45,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:01:45,676 INFO L87 Difference]: Start difference. First operand 2819 states and 5063 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:46,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:01:46,627 INFO L93 Difference]: Finished difference Result 3944 states and 6878 transitions. [2024-12-01 23:01:46,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:01:46,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 165 [2024-12-01 23:01:46,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:01:46,642 INFO L225 Difference]: With dead ends: 3944 [2024-12-01 23:01:46,642 INFO L226 Difference]: Without dead ends: 3265 [2024-12-01 23:01:46,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:01:46,646 INFO L435 NwaCegarLoop]: 4677 mSDtfsCounter, 5029 mSDsluCounter, 14076 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5048 SdHoareTripleChecker+Valid, 18753 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-01 23:01:46,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5048 Valid, 18753 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-01 23:01:46,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2024-12-01 23:01:46,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3142. [2024-12-01 23:01:46,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3142 states, 3055 states have (on average 1.779050736497545) internal successors, (5435), 3059 states have internal predecessors, (5435), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (69), 66 states have call predecessors, (69), 65 states have call successors, (69) [2024-12-01 23:01:46,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 5569 transitions. [2024-12-01 23:01:46,741 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 5569 transitions. Word has length 165 [2024-12-01 23:01:46,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:01:46,741 INFO L471 AbstractCegarLoop]: Abstraction has 3142 states and 5569 transitions. [2024-12-01 23:01:46,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:46,741 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 5569 transitions. [2024-12-01 23:01:46,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-01 23:01:46,744 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:01:46,744 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:01:46,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 23:01:46,745 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:01:46,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:01:46,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1211787563, now seen corresponding path program 1 times [2024-12-01 23:01:46,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:01:46,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242495135] [2024-12-01 23:01:46,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:01:46,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:01:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:01:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:01:46,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:01:46,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242495135] [2024-12-01 23:01:46,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242495135] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:01:46,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:01:46,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:01:46,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009484506] [2024-12-01 23:01:46,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:01:46,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:01:46,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:01:46,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:01:46,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:01:46,970 INFO L87 Difference]: Start difference. First operand 3142 states and 5569 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:47,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:01:47,961 INFO L93 Difference]: Finished difference Result 4977 states and 8523 transitions. [2024-12-01 23:01:47,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:01:47,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 165 [2024-12-01 23:01:47,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:01:47,978 INFO L225 Difference]: With dead ends: 4977 [2024-12-01 23:01:47,978 INFO L226 Difference]: Without dead ends: 3975 [2024-12-01 23:01:47,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:01:47,982 INFO L435 NwaCegarLoop]: 4673 mSDtfsCounter, 5024 mSDsluCounter, 14064 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5043 SdHoareTripleChecker+Valid, 18737 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-01 23:01:47,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5043 Valid, 18737 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-01 23:01:47,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3975 states. [2024-12-01 23:01:48,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3975 to 3833. [2024-12-01 23:01:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3833 states, 3690 states have (on average 1.7463414634146341) internal successors, (6444), 3698 states have internal predecessors, (6444), 105 states have call successors, (105), 30 states have call predecessors, (105), 36 states have return successors, (121), 108 states have call predecessors, (121), 105 states have call successors, (121) [2024-12-01 23:01:48,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3833 states to 3833 states and 6670 transitions. [2024-12-01 23:01:48,099 INFO L78 Accepts]: Start accepts. Automaton has 3833 states and 6670 transitions. Word has length 165 [2024-12-01 23:01:48,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:01:48,099 INFO L471 AbstractCegarLoop]: Abstraction has 3833 states and 6670 transitions. [2024-12-01 23:01:48,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:48,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3833 states and 6670 transitions. [2024-12-01 23:01:48,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-01 23:01:48,102 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:01:48,102 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:01:48,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 23:01:48,102 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:01:48,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:01:48,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1055807021, now seen corresponding path program 1 times [2024-12-01 23:01:48,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:01:48,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457249216] [2024-12-01 23:01:48,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:01:48,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:01:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:01:48,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:01:48,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:01:48,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457249216] [2024-12-01 23:01:48,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457249216] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:01:48,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:01:48,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:01:48,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856126609] [2024-12-01 23:01:48,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:01:48,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:01:48,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:01:48,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:01:48,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:01:48,302 INFO L87 Difference]: Start difference. First operand 3833 states and 6670 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:49,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:01:49,114 INFO L93 Difference]: Finished difference Result 7218 states and 12166 transitions. [2024-12-01 23:01:49,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:01:49,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 165 [2024-12-01 23:01:49,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:01:49,135 INFO L225 Difference]: With dead ends: 7218 [2024-12-01 23:01:49,135 INFO L226 Difference]: Without dead ends: 5525 [2024-12-01 23:01:49,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:01:49,142 INFO L435 NwaCegarLoop]: 4670 mSDtfsCounter, 5019 mSDsluCounter, 14055 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5038 SdHoareTripleChecker+Valid, 18725 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:01:49,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5038 Valid, 18725 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 23:01:49,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5525 states. [2024-12-01 23:01:49,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5525 to 5344. [2024-12-01 23:01:49,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5083 states have (on average 1.7115876450914813) internal successors, (8700), 5105 states have internal predecessors, (8700), 185 states have call successors, (185), 54 states have call predecessors, (185), 74 states have return successors, (249), 192 states have call predecessors, (249), 185 states have call successors, (249) [2024-12-01 23:01:49,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 9134 transitions. [2024-12-01 23:01:49,345 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 9134 transitions. Word has length 165 [2024-12-01 23:01:49,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:01:49,345 INFO L471 AbstractCegarLoop]: Abstraction has 5344 states and 9134 transitions. [2024-12-01 23:01:49,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:49,345 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 9134 transitions. [2024-12-01 23:01:49,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-01 23:01:49,349 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:01:49,349 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:01:49,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 23:01:49,349 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:01:49,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:01:49,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1466417387, now seen corresponding path program 1 times [2024-12-01 23:01:49,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:01:49,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125159121] [2024-12-01 23:01:49,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:01:49,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:01:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:01:49,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:01:49,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:01:49,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125159121] [2024-12-01 23:01:49,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125159121] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:01:49,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:01:49,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:01:49,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154575733] [2024-12-01 23:01:49,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:01:49,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:01:49,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:01:49,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:01:49,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:01:49,549 INFO L87 Difference]: Start difference. First operand 5344 states and 9134 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:50,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:01:50,363 INFO L93 Difference]: Finished difference Result 12197 states and 20488 transitions. [2024-12-01 23:01:50,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:01:50,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 165 [2024-12-01 23:01:50,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:01:50,393 INFO L225 Difference]: With dead ends: 12197 [2024-12-01 23:01:50,393 INFO L226 Difference]: Without dead ends: 8993 [2024-12-01 23:01:50,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:01:50,400 INFO L435 NwaCegarLoop]: 4667 mSDtfsCounter, 5014 mSDsluCounter, 14046 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5033 SdHoareTripleChecker+Valid, 18713 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:01:50,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5033 Valid, 18713 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 23:01:50,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8993 states. [2024-12-01 23:01:50,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8993 to 8735. [2024-12-01 23:01:50,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8735 states, 8220 states have (on average 1.6900243309002434) internal successors, (13892), 8288 states have internal predecessors, (13892), 345 states have call successors, (345), 102 states have call predecessors, (345), 168 states have return successors, (601), 360 states have call predecessors, (601), 345 states have call successors, (601) [2024-12-01 23:01:50,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8735 states to 8735 states and 14838 transitions. [2024-12-01 23:01:50,616 INFO L78 Accepts]: Start accepts. Automaton has 8735 states and 14838 transitions. Word has length 165 [2024-12-01 23:01:50,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:01:50,617 INFO L471 AbstractCegarLoop]: Abstraction has 8735 states and 14838 transitions. [2024-12-01 23:01:50,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:50,617 INFO L276 IsEmpty]: Start isEmpty. Operand 8735 states and 14838 transitions. [2024-12-01 23:01:50,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-01 23:01:50,620 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:01:50,621 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:01:50,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 23:01:50,621 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:01:50,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:01:50,621 INFO L85 PathProgramCache]: Analyzing trace with hash -321452435, now seen corresponding path program 1 times [2024-12-01 23:01:50,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:01:50,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740397552] [2024-12-01 23:01:50,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:01:50,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:01:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:01:50,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:01:50,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:01:50,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740397552] [2024-12-01 23:01:50,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740397552] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:01:50,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:01:50,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:01:50,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463879430] [2024-12-01 23:01:50,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:01:50,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:01:50,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:01:50,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:01:50,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:01:50,738 INFO L87 Difference]: Start difference. First operand 8735 states and 14838 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:51,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:01:51,733 INFO L93 Difference]: Finished difference Result 23572 states and 40218 transitions. [2024-12-01 23:01:51,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:01:51,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 165 [2024-12-01 23:01:51,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:01:51,786 INFO L225 Difference]: With dead ends: 23572 [2024-12-01 23:01:51,786 INFO L226 Difference]: Without dead ends: 16977 [2024-12-01 23:01:51,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:01:51,805 INFO L435 NwaCegarLoop]: 4664 mSDtfsCounter, 5009 mSDsluCounter, 14037 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5028 SdHoareTripleChecker+Valid, 18701 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:01:51,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5028 Valid, 18701 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 23:01:51,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16977 states. [2024-12-01 23:01:52,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16977 to 16570. [2024-12-01 23:01:52,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16570 states, 15493 states have (on average 1.6918608403795263) internal successors, (26212), 15707 states have internal predecessors, (26212), 665 states have call successors, (665), 198 states have call predecessors, (665), 410 states have return successors, (1689), 696 states have call predecessors, (1689), 665 states have call successors, (1689) [2024-12-01 23:01:52,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16570 states to 16570 states and 28566 transitions. [2024-12-01 23:01:52,352 INFO L78 Accepts]: Start accepts. Automaton has 16570 states and 28566 transitions. Word has length 165 [2024-12-01 23:01:52,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:01:52,352 INFO L471 AbstractCegarLoop]: Abstraction has 16570 states and 28566 transitions. [2024-12-01 23:01:52,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:52,352 INFO L276 IsEmpty]: Start isEmpty. Operand 16570 states and 28566 transitions. [2024-12-01 23:01:52,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-01 23:01:52,360 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:01:52,360 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:01:52,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 23:01:52,360 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:01:52,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:01:52,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1837631659, now seen corresponding path program 1 times [2024-12-01 23:01:52,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:01:52,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333356284] [2024-12-01 23:01:52,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:01:52,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:01:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:01:52,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:01:52,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:01:52,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333356284] [2024-12-01 23:01:52,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333356284] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:01:52,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:01:52,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:01:52,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283172741] [2024-12-01 23:01:52,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:01:52,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:01:52,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:01:52,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:01:52,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:01:52,501 INFO L87 Difference]: Start difference. First operand 16570 states and 28566 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:53,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:01:53,427 INFO L93 Difference]: Finished difference Result 35410 states and 62319 transitions. [2024-12-01 23:01:53,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:01:53,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 165 [2024-12-01 23:01:53,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:01:53,508 INFO L225 Difference]: With dead ends: 35410 [2024-12-01 23:01:53,508 INFO L226 Difference]: Without dead ends: 20980 [2024-12-01 23:01:53,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:01:53,559 INFO L435 NwaCegarLoop]: 4362 mSDtfsCounter, 4703 mSDsluCounter, 8579 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4722 SdHoareTripleChecker+Valid, 12941 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:01:53,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4722 Valid, 12941 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:01:53,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20980 states. [2024-12-01 23:01:54,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20980 to 16570. [2024-12-01 23:01:54,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16570 states, 15493 states have (on average 1.6897308461886014) internal successors, (26179), 15707 states have internal predecessors, (26179), 665 states have call successors, (665), 198 states have call predecessors, (665), 410 states have return successors, (1689), 696 states have call predecessors, (1689), 665 states have call successors, (1689) [2024-12-01 23:01:54,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16570 states to 16570 states and 28533 transitions. [2024-12-01 23:01:54,295 INFO L78 Accepts]: Start accepts. Automaton has 16570 states and 28533 transitions. Word has length 165 [2024-12-01 23:01:54,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:01:54,296 INFO L471 AbstractCegarLoop]: Abstraction has 16570 states and 28533 transitions. [2024-12-01 23:01:54,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:54,296 INFO L276 IsEmpty]: Start isEmpty. Operand 16570 states and 28533 transitions. [2024-12-01 23:01:54,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-01 23:01:54,303 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:01:54,303 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:01:54,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 23:01:54,304 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:01:54,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:01:54,304 INFO L85 PathProgramCache]: Analyzing trace with hash -2039446935, now seen corresponding path program 1 times [2024-12-01 23:01:54,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:01:54,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895910032] [2024-12-01 23:01:54,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:01:54,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:01:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:01:54,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:01:54,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:01:54,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895910032] [2024-12-01 23:01:54,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895910032] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:01:54,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:01:54,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:01:54,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657335103] [2024-12-01 23:01:54,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:01:54,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:01:54,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:01:54,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:01:54,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:01:54,456 INFO L87 Difference]: Start difference. First operand 16570 states and 28533 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:55,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:01:55,727 INFO L93 Difference]: Finished difference Result 49803 states and 87789 transitions. [2024-12-01 23:01:55,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:01:55,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 165 [2024-12-01 23:01:55,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:01:55,849 INFO L225 Difference]: With dead ends: 49803 [2024-12-01 23:01:55,849 INFO L226 Difference]: Without dead ends: 35373 [2024-12-01 23:01:55,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:01:55,898 INFO L435 NwaCegarLoop]: 4652 mSDtfsCounter, 4993 mSDsluCounter, 14004 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5012 SdHoareTripleChecker+Valid, 18656 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:01:55,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5012 Valid, 18656 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 23:01:55,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35373 states. [2024-12-01 23:01:56,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35373 to 34751. [2024-12-01 23:01:56,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34751 states, 32388 states have (on average 1.7076386315919476) internal successors, (55307), 33056 states have internal predecessors, (55307), 1305 states have call successors, (1305), 390 states have call predecessors, (1305), 1056 states have return successors, (5401), 1368 states have call predecessors, (5401), 1305 states have call successors, (5401) [2024-12-01 23:01:56,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34751 states to 34751 states and 62013 transitions. [2024-12-01 23:01:57,000 INFO L78 Accepts]: Start accepts. Automaton has 34751 states and 62013 transitions. Word has length 165 [2024-12-01 23:01:57,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:01:57,000 INFO L471 AbstractCegarLoop]: Abstraction has 34751 states and 62013 transitions. [2024-12-01 23:01:57,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:57,000 INFO L276 IsEmpty]: Start isEmpty. Operand 34751 states and 62013 transitions. [2024-12-01 23:01:57,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-01 23:01:57,013 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:01:57,013 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:01:57,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 23:01:57,013 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:01:57,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:01:57,014 INFO L85 PathProgramCache]: Analyzing trace with hash -640493333, now seen corresponding path program 1 times [2024-12-01 23:01:57,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:01:57,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824923124] [2024-12-01 23:01:57,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:01:57,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:01:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:01:57,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:01:57,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:01:57,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824923124] [2024-12-01 23:01:57,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824923124] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:01:57,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:01:57,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:01:57,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543131320] [2024-12-01 23:01:57,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:01:57,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:01:57,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:01:57,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:01:57,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:01:57,232 INFO L87 Difference]: Start difference. First operand 34751 states and 62013 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:01:59,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:01:59,657 INFO L93 Difference]: Finished difference Result 112356 states and 208903 transitions. [2024-12-01 23:01:59,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:01:59,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 165 [2024-12-01 23:01:59,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:01:59,897 INFO L225 Difference]: With dead ends: 112356 [2024-12-01 23:01:59,897 INFO L226 Difference]: Without dead ends: 79745 [2024-12-01 23:01:59,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:01:59,990 INFO L435 NwaCegarLoop]: 4649 mSDtfsCounter, 4988 mSDsluCounter, 13995 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5007 SdHoareTripleChecker+Valid, 18644 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:01:59,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5007 Valid, 18644 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 23:02:00,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79745 states. [2024-12-01 23:02:01,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79745 to 78646. [2024-12-01 23:02:01,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78646 states, 73225 states have (on average 1.736278593376579) internal successors, (127139), 75287 states have internal predecessors, (127139), 2585 states have call successors, (2585), 774 states have call predecessors, (2585), 2834 states have return successors, (18969), 2712 states have call predecessors, (18969), 2585 states have call successors, (18969) [2024-12-01 23:02:02,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78646 states to 78646 states and 148693 transitions. [2024-12-01 23:02:02,067 INFO L78 Accepts]: Start accepts. Automaton has 78646 states and 148693 transitions. Word has length 165 [2024-12-01 23:02:02,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:02:02,067 INFO L471 AbstractCegarLoop]: Abstraction has 78646 states and 148693 transitions. [2024-12-01 23:02:02,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:02:02,067 INFO L276 IsEmpty]: Start isEmpty. Operand 78646 states and 148693 transitions. [2024-12-01 23:02:02,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-01 23:02:02,080 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:02:02,080 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:02:02,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-01 23:02:02,080 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:02:02,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:02:02,081 INFO L85 PathProgramCache]: Analyzing trace with hash 2037033513, now seen corresponding path program 1 times [2024-12-01 23:02:02,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:02:02,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085564131] [2024-12-01 23:02:02,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:02:02,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:02:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:02:02,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:02:02,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:02:02,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085564131] [2024-12-01 23:02:02,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085564131] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:02:02,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:02:02,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:02:02,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805313928] [2024-12-01 23:02:02,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:02:02,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:02:02,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:02:02,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:02:02,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:02:02,178 INFO L87 Difference]: Start difference. First operand 78646 states and 148693 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:02:06,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:02:06,812 INFO L93 Difference]: Finished difference Result 266075 states and 533149 transitions. [2024-12-01 23:02:06,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:02:06,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 165 [2024-12-01 23:02:06,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:02:07,490 INFO L225 Difference]: With dead ends: 266075 [2024-12-01 23:02:07,490 INFO L226 Difference]: Without dead ends: 189569 [2024-12-01 23:02:07,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:02:07,723 INFO L435 NwaCegarLoop]: 4646 mSDtfsCounter, 4983 mSDsluCounter, 13986 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5002 SdHoareTripleChecker+Valid, 18632 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:02:07,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5002 Valid, 18632 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 23:02:07,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189569 states. [2024-12-01 23:02:14,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189569 to 187577. [2024-12-01 23:02:14,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187577 states, 174582 states have (on average 1.767919945927988) internal successors, (308647), 180890 states have internal predecessors, (308647), 5145 states have call successors, (5145), 1542 states have call predecessors, (5145), 7848 states have return successors, (70681), 5400 states have call predecessors, (70681), 5145 states have call successors, (70681) [2024-12-01 23:02:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187577 states to 187577 states and 384473 transitions. [2024-12-01 23:02:15,114 INFO L78 Accepts]: Start accepts. Automaton has 187577 states and 384473 transitions. Word has length 165 [2024-12-01 23:02:15,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:02:15,114 INFO L471 AbstractCegarLoop]: Abstraction has 187577 states and 384473 transitions. [2024-12-01 23:02:15,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:02:15,114 INFO L276 IsEmpty]: Start isEmpty. Operand 187577 states and 384473 transitions. [2024-12-01 23:02:15,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-01 23:02:15,141 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:02:15,141 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:02:15,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-01 23:02:15,141 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:02:15,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:02:15,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1894467285, now seen corresponding path program 1 times [2024-12-01 23:02:15,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:02:15,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821129497] [2024-12-01 23:02:15,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:02:15,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:02:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:02:15,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:02:15,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:02:15,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821129497] [2024-12-01 23:02:15,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821129497] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:02:15,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:02:15,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:02:15,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455560037] [2024-12-01 23:02:15,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:02:15,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:02:15,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:02:15,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:02:15,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:02:15,249 INFO L87 Difference]: Start difference. First operand 187577 states and 384473 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:02:23,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:02:23,982 INFO L93 Difference]: Finished difference Result 464896 states and 995083 transitions. [2024-12-01 23:02:23,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:02:23,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 165 [2024-12-01 23:02:23,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:02:24,986 INFO L225 Difference]: With dead ends: 464896 [2024-12-01 23:02:24,986 INFO L226 Difference]: Without dead ends: 279459 [2024-12-01 23:02:25,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:02:25,580 INFO L435 NwaCegarLoop]: 4353 mSDtfsCounter, 4697 mSDsluCounter, 8562 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4716 SdHoareTripleChecker+Valid, 12915 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:02:25,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4716 Valid, 12915 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:02:25,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279459 states. [2024-12-01 23:02:46,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279459 to 187577. [2024-12-01 23:02:46,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187577 states, 174582 states have (on average 1.766447858312999) internal successors, (308390), 180890 states have internal predecessors, (308390), 5145 states have call successors, (5145), 1542 states have call predecessors, (5145), 7848 states have return successors, (70681), 5400 states have call predecessors, (70681), 5145 states have call successors, (70681) [2024-12-01 23:02:47,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187577 states to 187577 states and 384216 transitions. [2024-12-01 23:02:47,729 INFO L78 Accepts]: Start accepts. Automaton has 187577 states and 384216 transitions. Word has length 165 [2024-12-01 23:02:47,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:02:47,730 INFO L471 AbstractCegarLoop]: Abstraction has 187577 states and 384216 transitions. [2024-12-01 23:02:47,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:02:47,730 INFO L276 IsEmpty]: Start isEmpty. Operand 187577 states and 384216 transitions. [2024-12-01 23:02:47,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-01 23:02:47,756 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:02:47,756 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:02:47,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-01 23:02:47,757 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:02:47,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:02:47,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1605647895, now seen corresponding path program 1 times [2024-12-01 23:02:47,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:02:47,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90210334] [2024-12-01 23:02:47,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:02:47,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:02:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:02:47,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:02:47,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:02:47,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90210334] [2024-12-01 23:02:47,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90210334] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:02:47,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:02:47,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:02:47,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305125531] [2024-12-01 23:02:47,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:02:47,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:02:47,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:02:47,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:02:47,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:02:47,860 INFO L87 Difference]: Start difference. First operand 187577 states and 384216 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:03:00,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:03:00,612 INFO L93 Difference]: Finished difference Result 667750 states and 1464809 transitions. [2024-12-01 23:03:00,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:03:00,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 165 [2024-12-01 23:03:00,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:03:02,811 INFO L225 Difference]: With dead ends: 667750 [2024-12-01 23:03:02,811 INFO L226 Difference]: Without dead ends: 482313 [2024-12-01 23:03:03,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:03:03,611 INFO L435 NwaCegarLoop]: 4636 mSDtfsCounter, 5314 mSDsluCounter, 13952 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5345 SdHoareTripleChecker+Valid, 18588 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:03:03,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5345 Valid, 18588 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 23:03:03,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482313 states. [2024-12-01 23:03:28,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482313 to 457159. [2024-12-01 23:03:29,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457159 states, 424898 states have (on average 1.7942282618416656) internal successors, (762364), 444072 states have internal predecessors, (762364), 10009 states have call successors, (10009), 3078 states have call predecessors, (10009), 22250 states have return successors, (272153), 10520 states have call predecessors, (272153), 10009 states have call successors, (272153) [2024-12-01 23:03:32,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457159 states to 457159 states and 1044526 transitions. [2024-12-01 23:03:33,035 INFO L78 Accepts]: Start accepts. Automaton has 457159 states and 1044526 transitions. Word has length 165 [2024-12-01 23:03:33,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:03:33,035 INFO L471 AbstractCegarLoop]: Abstraction has 457159 states and 1044526 transitions. [2024-12-01 23:03:33,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-01 23:03:33,035 INFO L276 IsEmpty]: Start isEmpty. Operand 457159 states and 1044526 transitions. [2024-12-01 23:03:33,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-01 23:03:33,089 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:03:33,089 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:03:33,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-01 23:03:33,090 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:03:33,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:03:33,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2144446827, now seen corresponding path program 1 times [2024-12-01 23:03:33,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:03:33,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281796790] [2024-12-01 23:03:33,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:03:33,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:03:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:03:33,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:03:33,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:03:33,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281796790] [2024-12-01 23:03:33,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281796790] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:03:33,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:03:33,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:03:33,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480404064] [2024-12-01 23:03:33,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:03:33,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:03:33,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:03:33,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:03:33,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:03:33,478 INFO L87 Difference]: Start difference. First operand 457159 states and 1044526 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)