./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.14.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 5c885e36ce67f972719c7330e2fdf8e1794f0d30dd144b261109fa7b0892a972 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:13:50,065 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:13:50,123 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:13:50,129 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:13:50,130 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:13:50,163 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:13:50,164 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:13:50,164 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:13:50,165 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:13:50,167 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:13:50,168 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:13:50,168 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:13:50,169 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:13:50,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:13:50,171 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:13:50,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:13:50,171 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:13:50,172 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:13:50,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:13:50,172 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:13:50,176 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:13:50,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:13:50,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:13:50,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:13:50,177 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:13:50,177 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:13:50,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:13:50,178 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:13:50,178 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:13:50,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:13:50,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:13:50,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:13:50,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:13:50,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:13:50,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:13:50,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:13:50,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:13:50,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:13:50,181 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:13:50,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:13:50,181 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:13:50,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:13:50,183 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c885e36ce67f972719c7330e2fdf8e1794f0d30dd144b261109fa7b0892a972 [2024-11-16 09:13:50,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:13:50,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:13:50,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:13:50,483 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:13:50,483 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:13:50,484 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label45+token_ring.14.cil.c [2024-11-16 09:13:51,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:13:52,495 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:13:52,496 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.14.cil.c [2024-11-16 09:13:52,545 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e6533bb5/0a4fbe62a288439d91ba2369f0cf95db/FLAG8b0b59c3c [2024-11-16 09:13:52,953 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e6533bb5/0a4fbe62a288439d91ba2369f0cf95db [2024-11-16 09:13:52,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:13:52,957 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:13:52,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:13:52,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:13:52,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:13:52,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:13:52" (1/1) ... [2024-11-16 09:13:52,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2457efe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:52, skipping insertion in model container [2024-11-16 09:13:52,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:13:52" (1/1) ... [2024-11-16 09:13:53,172 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:13:54,778 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.14.cil.c[380323,380336] [2024-11-16 09:13:54,848 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.14.cil.c[383339,383352] [2024-11-16 09:13:55,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:13:55,255 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:13:56,061 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.14.cil.c[380323,380336] [2024-11-16 09:13:56,072 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.14.cil.c[383339,383352] [2024-11-16 09:13:56,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:13:56,205 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:13:56,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:56 WrapperNode [2024-11-16 09:13:56,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:13:56,206 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:13:56,206 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:13:56,207 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:13:56,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:56" (1/1) ... [2024-11-16 09:13:56,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:56" (1/1) ... [2024-11-16 09:13:56,787 INFO L138 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 13221 [2024-11-16 09:13:56,787 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:13:56,788 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:13:56,788 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:13:56,788 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:13:56,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:56" (1/1) ... [2024-11-16 09:13:56,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:56" (1/1) ... [2024-11-16 09:13:56,909 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:56" (1/1) ... [2024-11-16 09:13:56,986 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]. [2024-11-16 09:13:56,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:56" (1/1) ... [2024-11-16 09:13:56,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:56" (1/1) ... [2024-11-16 09:13:57,168 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:56" (1/1) ... [2024-11-16 09:13:57,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:56" (1/1) ... [2024-11-16 09:13:57,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:56" (1/1) ... [2024-11-16 09:13:57,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:56" (1/1) ... [2024-11-16 09:13:57,348 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:13:57,357 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:13:57,358 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:13:57,358 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:13:57,359 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:56" (1/1) ... [2024-11-16 09:13:57,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:13:57,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:13:57,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:13:57,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:13:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:13:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:13:57,494 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:13:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:13:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:13:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:13:57,497 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:13:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 09:13:57,497 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 09:13:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:13:57,498 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:13:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:13:57,498 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:13:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:13:57,498 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:13:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:13:57,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:13:57,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:13:57,755 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:13:57,759 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:14:05,213 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:14:05,214 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:14:05,214 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:14:05,214 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:14:05,215 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:14:05,215 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:14:05,215 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:14:05,657 INFO L? ?]: Removed 1759 outVars from TransFormulas that were not future-live. [2024-11-16 09:14:05,658 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:14:05,721 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:14:05,721 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:14:05,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:14:05 BoogieIcfgContainer [2024-11-16 09:14:05,722 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:14:05,725 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:14:05,725 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:14:05,729 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:14:05,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:13:52" (1/3) ... [2024-11-16 09:14:05,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1358ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:14:05, skipping insertion in model container [2024-11-16 09:14:05,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:13:56" (2/3) ... [2024-11-16 09:14:05,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1358ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:14:05, skipping insertion in model container [2024-11-16 09:14:05,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:14:05" (3/3) ... [2024-11-16 09:14:05,733 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.14.cil.c [2024-11-16 09:14:05,752 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:14:05,752 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:14:05,871 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:14:05,878 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;@65bc52ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:14:05,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:14:05,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 2647 states, 2609 states have (on average 1.818704484476811) internal successors, (4745), 2614 states have internal predecessors, (4745), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-16 09:14:05,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:14:05,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:14:05,925 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:14:05,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:14:05,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:14:05,930 INFO L85 PathProgramCache]: Analyzing trace with hash 514020499, now seen corresponding path program 1 times [2024-11-16 09:14:05,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:14:05,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510242803] [2024-11-16 09:14:05,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:14:05,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:14:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:06,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:14:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:06,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 09:14:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:06,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:14:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:06,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:14:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:06,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 09:14:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:06,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:14:06,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:14:06,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510242803] [2024-11-16 09:14:06,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510242803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:14:06,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:14:06,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:14:06,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693617201] [2024-11-16 09:14:06,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:14:06,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:14:06,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:14:06,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:14:06,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:14:06,876 INFO L87 Difference]: Start difference. First operand has 2647 states, 2609 states have (on average 1.818704484476811) internal successors, (4745), 2614 states have internal predecessors, (4745), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:10,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:14:10,788 INFO L93 Difference]: Finished difference Result 5984 states and 10741 transitions. [2024-11-16 09:14:10,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:14:10,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2024-11-16 09:14:10,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:14:10,836 INFO L225 Difference]: With dead ends: 5984 [2024-11-16 09:14:10,836 INFO L226 Difference]: Without dead ends: 3285 [2024-11-16 09:14:10,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:14:10,856 INFO L432 NwaCegarLoop]: 4461 mSDtfsCounter, 5663 mSDsluCounter, 13401 mSDsCounter, 0 mSdLazyCounter, 2324 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5682 SdHoareTripleChecker+Valid, 17862 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:14:10,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5682 Valid, 17862 Invalid, 2440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [116 Valid, 2324 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 09:14:10,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3285 states. [2024-11-16 09:14:11,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3285 to 2999. [2024-11-16 09:14:11,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2999 states, 2935 states have (on average 1.7669505962521295) internal successors, (5186), 2939 states have internal predecessors, (5186), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-11-16 09:14:11,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2999 states to 2999 states and 5285 transitions. [2024-11-16 09:14:11,090 INFO L78 Accepts]: Start accepts. Automaton has 2999 states and 5285 transitions. Word has length 184 [2024-11-16 09:14:11,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:14:11,091 INFO L471 AbstractCegarLoop]: Abstraction has 2999 states and 5285 transitions. [2024-11-16 09:14:11,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:11,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2999 states and 5285 transitions. [2024-11-16 09:14:11,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:14:11,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:14:11,101 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:14:11,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:14:11,102 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:14:11,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:14:11,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1945821611, now seen corresponding path program 1 times [2024-11-16 09:14:11,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:14:11,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58400521] [2024-11-16 09:14:11,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:14:11,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:14:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:11,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:14:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:11,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 09:14:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:11,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:14:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:11,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:14:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:11,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 09:14:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:11,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:14:11,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:14:11,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58400521] [2024-11-16 09:14:11,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58400521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:14:11,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:14:11,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:14:11,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328550584] [2024-11-16 09:14:11,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:14:11,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:14:11,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:14:11,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:14:11,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:14:11,559 INFO L87 Difference]: Start difference. First operand 2999 states and 5285 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:13,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:14:13,973 INFO L93 Difference]: Finished difference Result 4160 states and 7105 transitions. [2024-11-16 09:14:13,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:14:13,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2024-11-16 09:14:13,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:14:13,989 INFO L225 Difference]: With dead ends: 4160 [2024-11-16 09:14:13,989 INFO L226 Difference]: Without dead ends: 3304 [2024-11-16 09:14:13,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:14:13,993 INFO L432 NwaCegarLoop]: 4324 mSDtfsCounter, 5160 mSDsluCounter, 17022 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5180 SdHoareTripleChecker+Valid, 21346 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:14:13,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5180 Valid, 21346 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 09:14:13,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3304 states. [2024-11-16 09:14:14,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3304 to 2999. [2024-11-16 09:14:14,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2999 states, 2935 states have (on average 1.7662691652470188) internal successors, (5184), 2939 states have internal predecessors, (5184), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-11-16 09:14:14,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2999 states to 2999 states and 5283 transitions. [2024-11-16 09:14:14,076 INFO L78 Accepts]: Start accepts. Automaton has 2999 states and 5283 transitions. Word has length 184 [2024-11-16 09:14:14,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:14:14,078 INFO L471 AbstractCegarLoop]: Abstraction has 2999 states and 5283 transitions. [2024-11-16 09:14:14,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:14,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2999 states and 5283 transitions. [2024-11-16 09:14:14,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:14:14,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:14:14,082 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:14:14,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:14:14,082 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:14:14,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:14:14,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1956146740, now seen corresponding path program 1 times [2024-11-16 09:14:14,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:14:14,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722187478] [2024-11-16 09:14:14,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:14:14,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:14:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:14,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:14:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:14,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 09:14:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:14,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:14:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:14,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:14:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:14,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 09:14:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:14,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:14:14,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:14:14,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722187478] [2024-11-16 09:14:14,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722187478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:14:14,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:14:14,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:14:14,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529677089] [2024-11-16 09:14:14,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:14:14,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:14:14,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:14:14,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:14:14,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:14:14,462 INFO L87 Difference]: Start difference. First operand 2999 states and 5283 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:17,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:14:17,992 INFO L93 Difference]: Finished difference Result 4734 states and 7986 transitions. [2024-11-16 09:14:17,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:14:17,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2024-11-16 09:14:17,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:14:18,009 INFO L225 Difference]: With dead ends: 4734 [2024-11-16 09:14:18,010 INFO L226 Difference]: Without dead ends: 3878 [2024-11-16 09:14:18,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:14:18,014 INFO L432 NwaCegarLoop]: 4395 mSDtfsCounter, 5724 mSDsluCounter, 17439 mSDsCounter, 0 mSdLazyCounter, 3201 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5743 SdHoareTripleChecker+Valid, 21834 SdHoareTripleChecker+Invalid, 3302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 3201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:14:18,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5743 Valid, 21834 Invalid, 3302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 3201 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 09:14:18,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3878 states. [2024-11-16 09:14:18,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3878 to 3408. [2024-11-16 09:14:18,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3408 states, 3316 states have (on average 1.7334137515078407) internal successors, (5748), 3321 states have internal predecessors, (5748), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-16 09:14:18,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3408 states to 3408 states and 5891 transitions. [2024-11-16 09:14:18,123 INFO L78 Accepts]: Start accepts. Automaton has 3408 states and 5891 transitions. Word has length 184 [2024-11-16 09:14:18,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:14:18,123 INFO L471 AbstractCegarLoop]: Abstraction has 3408 states and 5891 transitions. [2024-11-16 09:14:18,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:18,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3408 states and 5891 transitions. [2024-11-16 09:14:18,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:14:18,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:14:18,126 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:14:18,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:14:18,127 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:14:18,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:14:18,127 INFO L85 PathProgramCache]: Analyzing trace with hash 142354037, now seen corresponding path program 1 times [2024-11-16 09:14:18,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:14:18,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58947711] [2024-11-16 09:14:18,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:14:18,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:14:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:18,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:14:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:18,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 09:14:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:18,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:14:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:18,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:14:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:18,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 09:14:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:18,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:14:18,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:14:18,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58947711] [2024-11-16 09:14:18,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58947711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:14:18,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:14:18,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:14:18,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799269048] [2024-11-16 09:14:18,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:14:18,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:14:18,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:14:18,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:14:18,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:14:18,435 INFO L87 Difference]: Start difference. First operand 3408 states and 5891 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:21,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:14:21,897 INFO L93 Difference]: Finished difference Result 6257 states and 10320 transitions. [2024-11-16 09:14:21,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:14:21,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2024-11-16 09:14:21,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:14:21,920 INFO L225 Difference]: With dead ends: 6257 [2024-11-16 09:14:21,920 INFO L226 Difference]: Without dead ends: 4992 [2024-11-16 09:14:21,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:14:21,931 INFO L432 NwaCegarLoop]: 4638 mSDtfsCounter, 5620 mSDsluCounter, 18275 mSDsCounter, 0 mSdLazyCounter, 3576 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5639 SdHoareTripleChecker+Valid, 22913 SdHoareTripleChecker+Invalid, 3643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:14:21,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5639 Valid, 22913 Invalid, 3643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3576 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 09:14:21,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4992 states. [2024-11-16 09:14:22,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4992 to 4228. [2024-11-16 09:14:22,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4228 states, 4080 states have (on average 1.6860294117647059) internal successors, (6879), 4087 states have internal predecessors, (6879), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-16 09:14:22,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4228 states to 4228 states and 7114 transitions. [2024-11-16 09:14:22,192 INFO L78 Accepts]: Start accepts. Automaton has 4228 states and 7114 transitions. Word has length 184 [2024-11-16 09:14:22,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:14:22,193 INFO L471 AbstractCegarLoop]: Abstraction has 4228 states and 7114 transitions. [2024-11-16 09:14:22,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:22,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4228 states and 7114 transitions. [2024-11-16 09:14:22,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:14:22,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:14:22,197 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:14:22,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:14:22,198 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:14:22,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:14:22,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1192223252, now seen corresponding path program 1 times [2024-11-16 09:14:22,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:14:22,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200790392] [2024-11-16 09:14:22,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:14:22,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:14:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:22,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:14:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:22,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 09:14:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:22,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:14:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:22,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:14:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:22,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 09:14:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:22,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:14:22,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:14:22,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200790392] [2024-11-16 09:14:22,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200790392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:14:22,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:14:22,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:14:22,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164729212] [2024-11-16 09:14:22,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:14:22,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:14:22,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:14:22,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:14:22,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:14:22,595 INFO L87 Difference]: Start difference. First operand 4228 states and 7114 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:26,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:14:26,892 INFO L93 Difference]: Finished difference Result 9203 states and 14803 transitions. [2024-11-16 09:14:26,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:14:26,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2024-11-16 09:14:26,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:14:26,919 INFO L225 Difference]: With dead ends: 9203 [2024-11-16 09:14:26,920 INFO L226 Difference]: Without dead ends: 7118 [2024-11-16 09:14:26,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:14:26,926 INFO L432 NwaCegarLoop]: 4638 mSDtfsCounter, 5613 mSDsluCounter, 18275 mSDsCounter, 0 mSdLazyCounter, 3566 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5632 SdHoareTripleChecker+Valid, 22913 SdHoareTripleChecker+Invalid, 3633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:14:26,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5632 Valid, 22913 Invalid, 3633 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3566 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-16 09:14:26,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7118 states. [2024-11-16 09:14:27,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7118 to 5870. [2024-11-16 09:14:27,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5870 states, 5610 states have (on average 1.6297682709447416) internal successors, (9143), 5621 states have internal predecessors, (9143), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-16 09:14:27,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5870 states to 5870 states and 9568 transitions. [2024-11-16 09:14:27,148 INFO L78 Accepts]: Start accepts. Automaton has 5870 states and 9568 transitions. Word has length 184 [2024-11-16 09:14:27,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:14:27,149 INFO L471 AbstractCegarLoop]: Abstraction has 5870 states and 9568 transitions. [2024-11-16 09:14:27,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:27,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5870 states and 9568 transitions. [2024-11-16 09:14:27,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:14:27,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:14:27,153 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:14:27,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:14:27,154 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:14:27,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:14:27,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1364637333, now seen corresponding path program 1 times [2024-11-16 09:14:27,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:14:27,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873146830] [2024-11-16 09:14:27,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:14:27,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:14:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:27,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:14:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:27,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 09:14:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:27,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:14:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:27,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:14:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:27,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 09:14:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:14:27,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:14:27,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873146830] [2024-11-16 09:14:27,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873146830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:14:27,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:14:27,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:14:27,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217163180] [2024-11-16 09:14:27,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:14:27,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:14:27,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:14:27,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:14:27,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:14:27,462 INFO L87 Difference]: Start difference. First operand 5870 states and 9568 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:31,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:14:31,146 INFO L93 Difference]: Finished difference Result 15095 states and 23787 transitions. [2024-11-16 09:14:31,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:14:31,147 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2024-11-16 09:14:31,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:14:31,181 INFO L225 Difference]: With dead ends: 15095 [2024-11-16 09:14:31,181 INFO L226 Difference]: Without dead ends: 11368 [2024-11-16 09:14:31,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:14:31,192 INFO L432 NwaCegarLoop]: 4638 mSDtfsCounter, 5609 mSDsluCounter, 18275 mSDsCounter, 0 mSdLazyCounter, 3557 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5628 SdHoareTripleChecker+Valid, 22913 SdHoareTripleChecker+Invalid, 3624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:14:31,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5628 Valid, 22913 Invalid, 3624 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3557 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 09:14:31,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11368 states. [2024-11-16 09:14:31,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11368 to 9160. [2024-11-16 09:14:31,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9160 states, 8676 states have (on average 1.576648224988474) internal successors, (13679), 8695 states have internal predecessors, (13679), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-16 09:14:31,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9160 states to 9160 states and 14502 transitions. [2024-11-16 09:14:31,566 INFO L78 Accepts]: Start accepts. Automaton has 9160 states and 14502 transitions. Word has length 184 [2024-11-16 09:14:31,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:14:31,567 INFO L471 AbstractCegarLoop]: Abstraction has 9160 states and 14502 transitions. [2024-11-16 09:14:31,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:31,568 INFO L276 IsEmpty]: Start isEmpty. Operand 9160 states and 14502 transitions. [2024-11-16 09:14:31,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:14:31,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:14:31,575 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:14:31,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:14:31,576 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:14:31,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:14:31,576 INFO L85 PathProgramCache]: Analyzing trace with hash -292368908, now seen corresponding path program 1 times [2024-11-16 09:14:31,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:14:31,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623464914] [2024-11-16 09:14:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:14:31,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:14:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:31,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:14:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:31,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 09:14:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:31,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:14:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:31,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:14:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:31,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 09:14:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:31,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:14:31,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:14:31,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623464914] [2024-11-16 09:14:31,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623464914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:14:31,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:14:31,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:14:31,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409747046] [2024-11-16 09:14:31,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:14:31,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:14:31,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:14:31,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:14:31,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:14:31,880 INFO L87 Difference]: Start difference. First operand 9160 states and 14502 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:35,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:14:35,706 INFO L93 Difference]: Finished difference Result 26879 states and 41815 transitions. [2024-11-16 09:14:35,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:14:35,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2024-11-16 09:14:35,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:14:35,769 INFO L225 Difference]: With dead ends: 26879 [2024-11-16 09:14:35,769 INFO L226 Difference]: Without dead ends: 19862 [2024-11-16 09:14:35,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:14:35,796 INFO L432 NwaCegarLoop]: 4638 mSDtfsCounter, 5605 mSDsluCounter, 18275 mSDsCounter, 0 mSdLazyCounter, 3548 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5624 SdHoareTripleChecker+Valid, 22913 SdHoareTripleChecker+Invalid, 3615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:14:35,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5624 Valid, 22913 Invalid, 3615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3548 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 09:14:35,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19862 states. [2024-11-16 09:14:36,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19862 to 15754. [2024-11-16 09:14:36,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15754 states, 14822 states have (on average 1.536297395763055) internal successors, (22771), 14857 states have internal predecessors, (22771), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-16 09:14:36,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15754 states to 15754 states and 24444 transitions. [2024-11-16 09:14:36,474 INFO L78 Accepts]: Start accepts. Automaton has 15754 states and 24444 transitions. Word has length 184 [2024-11-16 09:14:36,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:14:36,475 INFO L471 AbstractCegarLoop]: Abstraction has 15754 states and 24444 transitions. [2024-11-16 09:14:36,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:36,475 INFO L276 IsEmpty]: Start isEmpty. Operand 15754 states and 24444 transitions. [2024-11-16 09:14:36,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:14:36,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:14:36,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:14:36,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:14:36,485 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:14:36,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:14:36,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1177104715, now seen corresponding path program 1 times [2024-11-16 09:14:36,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:14:36,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740467345] [2024-11-16 09:14:36,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:14:36,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:14:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:36,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:14:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:36,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 09:14:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:36,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:14:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:36,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:14:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:36,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 09:14:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:14:36,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:14:36,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740467345] [2024-11-16 09:14:36,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740467345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:14:36,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:14:36,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:14:36,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691540029] [2024-11-16 09:14:36,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:14:36,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:14:36,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:14:36,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:14:36,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:14:36,780 INFO L87 Difference]: Start difference. First operand 15754 states and 24444 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:39,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:14:39,168 INFO L93 Difference]: Finished difference Result 33724 states and 52467 transitions. [2024-11-16 09:14:39,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:14:39,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2024-11-16 09:14:39,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:14:39,236 INFO L225 Difference]: With dead ends: 33724 [2024-11-16 09:14:39,237 INFO L226 Difference]: Without dead ends: 20113 [2024-11-16 09:14:39,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:14:39,287 INFO L432 NwaCegarLoop]: 4323 mSDtfsCounter, 5169 mSDsluCounter, 17022 mSDsCounter, 0 mSdLazyCounter, 1811 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5189 SdHoareTripleChecker+Valid, 21345 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:14:39,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5189 Valid, 21345 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1811 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:14:39,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20113 states. [2024-11-16 09:14:40,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20113 to 15754. [2024-11-16 09:14:40,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15754 states, 14822 states have (on average 1.5340709755768451) internal successors, (22738), 14857 states have internal predecessors, (22738), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-16 09:14:40,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15754 states to 15754 states and 24411 transitions. [2024-11-16 09:14:40,078 INFO L78 Accepts]: Start accepts. Automaton has 15754 states and 24411 transitions. Word has length 184 [2024-11-16 09:14:40,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:14:40,078 INFO L471 AbstractCegarLoop]: Abstraction has 15754 states and 24411 transitions. [2024-11-16 09:14:40,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:40,079 INFO L276 IsEmpty]: Start isEmpty. Operand 15754 states and 24411 transitions. [2024-11-16 09:14:40,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:14:40,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:14:40,091 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:14:40,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:14:40,091 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:14:40,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:14:40,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1482739244, now seen corresponding path program 1 times [2024-11-16 09:14:40,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:14:40,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964074270] [2024-11-16 09:14:40,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:14:40,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:14:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:40,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:14:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:40,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 09:14:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:40,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:14:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:40,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:14:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:40,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 09:14:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:40,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:14:40,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:14:40,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964074270] [2024-11-16 09:14:40,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964074270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:14:40,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:14:40,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:14:40,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088934821] [2024-11-16 09:14:40,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:14:40,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:14:40,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:14:40,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:14:40,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:14:40,363 INFO L87 Difference]: Start difference. First operand 15754 states and 24411 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:42,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:14:42,699 INFO L93 Difference]: Finished difference Result 33689 states and 52299 transitions. [2024-11-16 09:14:42,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:14:42,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2024-11-16 09:14:42,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:14:42,773 INFO L225 Difference]: With dead ends: 33689 [2024-11-16 09:14:42,773 INFO L226 Difference]: Without dead ends: 20078 [2024-11-16 09:14:42,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:14:42,811 INFO L432 NwaCegarLoop]: 4323 mSDtfsCounter, 5167 mSDsluCounter, 17022 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5187 SdHoareTripleChecker+Valid, 21345 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:14:42,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5187 Valid, 21345 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:14:42,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20078 states. [2024-11-16 09:14:43,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20078 to 15754. [2024-11-16 09:14:43,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15754 states, 14822 states have (on average 1.5318445553906355) internal successors, (22705), 14857 states have internal predecessors, (22705), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-16 09:14:43,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15754 states to 15754 states and 24378 transitions. [2024-11-16 09:14:43,697 INFO L78 Accepts]: Start accepts. Automaton has 15754 states and 24378 transitions. Word has length 184 [2024-11-16 09:14:43,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:14:43,697 INFO L471 AbstractCegarLoop]: Abstraction has 15754 states and 24378 transitions. [2024-11-16 09:14:43,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:43,697 INFO L276 IsEmpty]: Start isEmpty. Operand 15754 states and 24378 transitions. [2024-11-16 09:14:43,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:14:43,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:14:43,707 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:14:43,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:14:43,707 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:14:43,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:14:43,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2109632213, now seen corresponding path program 1 times [2024-11-16 09:14:43,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:14:43,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889627121] [2024-11-16 09:14:43,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:14:43,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:14:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:43,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:14:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:43,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 09:14:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:43,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:14:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:43,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:14:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:43,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 09:14:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:43,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:14:43,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:14:43,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889627121] [2024-11-16 09:14:43,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889627121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:14:43,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:14:43,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:14:43,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165238944] [2024-11-16 09:14:43,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:14:43,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:14:43,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:14:43,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:14:43,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:14:43,974 INFO L87 Difference]: Start difference. First operand 15754 states and 24378 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:48,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:14:48,345 INFO L93 Difference]: Finished difference Result 50375 states and 77595 transitions. [2024-11-16 09:14:48,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:14:48,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2024-11-16 09:14:48,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:14:48,480 INFO L225 Difference]: With dead ends: 50375 [2024-11-16 09:14:48,480 INFO L226 Difference]: Without dead ends: 36764 [2024-11-16 09:14:48,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:14:48,527 INFO L432 NwaCegarLoop]: 4638 mSDtfsCounter, 5585 mSDsluCounter, 18275 mSDsCounter, 0 mSdLazyCounter, 3491 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5604 SdHoareTripleChecker+Valid, 22913 SdHoareTripleChecker+Invalid, 3558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:14:48,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5604 Valid, 22913 Invalid, 3558 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3491 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 09:14:48,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36764 states. [2024-11-16 09:14:49,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36764 to 29036. [2024-11-16 09:14:49,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29036 states, 27208 states have (on average 1.5045207291972948) internal successors, (40935), 27275 states have internal predecessors, (40935), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-11-16 09:14:49,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29036 states to 29036 states and 44470 transitions. [2024-11-16 09:14:49,950 INFO L78 Accepts]: Start accepts. Automaton has 29036 states and 44470 transitions. Word has length 184 [2024-11-16 09:14:49,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:14:49,950 INFO L471 AbstractCegarLoop]: Abstraction has 29036 states and 44470 transitions. [2024-11-16 09:14:49,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:49,951 INFO L276 IsEmpty]: Start isEmpty. Operand 29036 states and 44470 transitions. [2024-11-16 09:14:49,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:14:49,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:14:49,972 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:14:49,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:14:49,972 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:14:49,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:14:49,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1238168140, now seen corresponding path program 1 times [2024-11-16 09:14:49,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:14:49,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969319811] [2024-11-16 09:14:49,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:14:49,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:14:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:50,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:14:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:50,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 09:14:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:50,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:14:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:50,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:14:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:50,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 09:14:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:50,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:14:50,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:14:50,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969319811] [2024-11-16 09:14:50,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969319811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:14:50,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:14:50,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:14:50,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808470889] [2024-11-16 09:14:50,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:14:50,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:14:50,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:14:50,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:14:50,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:14:50,226 INFO L87 Difference]: Start difference. First operand 29036 states and 44470 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:53,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:14:53,062 INFO L93 Difference]: Finished difference Result 64119 states and 99259 transitions. [2024-11-16 09:14:53,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:14:53,063 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2024-11-16 09:14:53,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:14:53,338 INFO L225 Difference]: With dead ends: 64119 [2024-11-16 09:14:53,338 INFO L226 Difference]: Without dead ends: 37226 [2024-11-16 09:14:53,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:14:53,384 INFO L432 NwaCegarLoop]: 4322 mSDtfsCounter, 5396 mSDsluCounter, 12805 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5416 SdHoareTripleChecker+Valid, 17127 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:14:53,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5416 Valid, 17127 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:14:53,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37226 states. [2024-11-16 09:14:54,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37226 to 29036. [2024-11-16 09:14:54,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29036 states, 27208 states have (on average 1.502131725962952) internal successors, (40870), 27275 states have internal predecessors, (40870), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-11-16 09:14:54,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29036 states to 29036 states and 44405 transitions. [2024-11-16 09:14:54,580 INFO L78 Accepts]: Start accepts. Automaton has 29036 states and 44405 transitions. Word has length 184 [2024-11-16 09:14:54,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:14:54,580 INFO L471 AbstractCegarLoop]: Abstraction has 29036 states and 44405 transitions. [2024-11-16 09:14:54,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:54,581 INFO L276 IsEmpty]: Start isEmpty. Operand 29036 states and 44405 transitions. [2024-11-16 09:14:54,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:14:54,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:14:54,602 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:14:54,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:14:54,602 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:14:54,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:14:54,603 INFO L85 PathProgramCache]: Analyzing trace with hash -514877707, now seen corresponding path program 1 times [2024-11-16 09:14:54,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:14:54,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801687001] [2024-11-16 09:14:54,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:14:54,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:14:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:54,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:14:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:54,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 09:14:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:54,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:14:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:54,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:14:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:54,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 09:14:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:54,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:14:54,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:14:54,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801687001] [2024-11-16 09:14:54,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801687001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:14:54,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:14:54,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:14:54,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851937630] [2024-11-16 09:14:54,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:14:54,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:14:54,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:14:54,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:14:54,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:14:54,939 INFO L87 Difference]: Start difference. First operand 29036 states and 44405 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:57,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:14:57,569 INFO L93 Difference]: Finished difference Result 64052 states and 98931 transitions. [2024-11-16 09:14:57,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:14:57,569 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2024-11-16 09:14:57,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:14:57,687 INFO L225 Difference]: With dead ends: 64052 [2024-11-16 09:14:57,688 INFO L226 Difference]: Without dead ends: 37159 [2024-11-16 09:14:57,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:14:57,746 INFO L432 NwaCegarLoop]: 4323 mSDtfsCounter, 5332 mSDsluCounter, 12805 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5352 SdHoareTripleChecker+Valid, 17128 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:14:57,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5352 Valid, 17128 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:14:57,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37159 states. [2024-11-16 09:14:59,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37159 to 29036. [2024-11-16 09:14:59,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29036 states, 27208 states have (on average 1.4997427227286093) internal successors, (40805), 27275 states have internal predecessors, (40805), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-11-16 09:14:59,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29036 states to 29036 states and 44340 transitions. [2024-11-16 09:14:59,226 INFO L78 Accepts]: Start accepts. Automaton has 29036 states and 44340 transitions. Word has length 184 [2024-11-16 09:14:59,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:14:59,226 INFO L471 AbstractCegarLoop]: Abstraction has 29036 states and 44340 transitions. [2024-11-16 09:14:59,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:14:59,227 INFO L276 IsEmpty]: Start isEmpty. Operand 29036 states and 44340 transitions. [2024-11-16 09:14:59,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:14:59,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:14:59,252 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:14:59,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:14:59,252 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:14:59,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:14:59,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1171022228, now seen corresponding path program 1 times [2024-11-16 09:14:59,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:14:59,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776676014] [2024-11-16 09:14:59,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:14:59,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:14:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:59,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:14:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:59,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 09:14:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:59,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:14:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:59,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:14:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:59,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 09:14:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:14:59,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:14:59,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:14:59,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776676014] [2024-11-16 09:14:59,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776676014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:14:59,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:14:59,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:14:59,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802681358] [2024-11-16 09:14:59,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:14:59,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:14:59,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:14:59,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:14:59,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:14:59,561 INFO L87 Difference]: Start difference. First operand 29036 states and 44340 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)