./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.15.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_label46+token_ring.15.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 5a40438206222cb8b2973fadc665b92d328ce78e3a9921112a2f9717aab2538e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:16:22,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:16:22,163 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:16:22,169 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:16:22,170 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:16:22,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:16:22,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:16:22,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:16:22,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:16:22,205 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:16:22,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:16:22,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:16:22,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:16:22,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:16:22,207 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:16:22,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:16:22,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:16:22,213 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:16:22,213 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:16:22,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:16:22,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:16:22,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:16:22,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:16:22,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:16:22,215 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:16:22,215 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:16:22,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:16:22,216 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:16:22,216 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:16:22,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:16:22,217 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:16:22,217 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:16:22,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:16:22,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:16:22,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:16:22,218 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:16:22,218 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:16:22,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:16:22,219 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:16:22,219 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:16:22,219 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:16:22,221 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:16:22,221 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a40438206222cb8b2973fadc665b92d328ce78e3a9921112a2f9717aab2538e [2024-11-16 09:16:22,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:16:22,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:16:22,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:16:22,520 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:16:22,520 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:16:22,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.15.cil.c [2024-11-16 09:16:23,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:16:24,485 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:16:24,486 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.15.cil.c [2024-11-16 09:16:24,526 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/698838fcb/c55dffcf133049e7835c31d320011ed6/FLAG7fac9df82 [2024-11-16 09:16:24,970 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/698838fcb/c55dffcf133049e7835c31d320011ed6 [2024-11-16 09:16:24,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:16:24,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:16:24,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:16:24,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:16:24,980 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:16:24,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:16:24" (1/1) ... [2024-11-16 09:16:24,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@300bb043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:24, skipping insertion in model container [2024-11-16 09:16:24,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:16:24" (1/1) ... [2024-11-16 09:16:25,155 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:16:26,616 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_label46+token_ring.15.cil.c[382357,382370] [2024-11-16 09:16:26,665 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_label46+token_ring.15.cil.c[383339,383352] [2024-11-16 09:16:26,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:16:26,980 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:16:27,810 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_label46+token_ring.15.cil.c[382357,382370] [2024-11-16 09:16:27,815 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_label46+token_ring.15.cil.c[383339,383352] [2024-11-16 09:16:27,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:16:27,902 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:16:27,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:27 WrapperNode [2024-11-16 09:16:27,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:16:27,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:16:27,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:16:27,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:16:27,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:27" (1/1) ... [2024-11-16 09:16:28,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:27" (1/1) ... [2024-11-16 09:16:28,379 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13280 [2024-11-16 09:16:28,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:16:28,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:16:28,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:16:28,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:16:28,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:27" (1/1) ... [2024-11-16 09:16:28,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:27" (1/1) ... [2024-11-16 09:16:28,444 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:27" (1/1) ... [2024-11-16 09:16:28,698 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 09:16:28,698 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:27" (1/1) ... [2024-11-16 09:16:28,699 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:27" (1/1) ... [2024-11-16 09:16:28,899 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:27" (1/1) ... [2024-11-16 09:16:28,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:27" (1/1) ... [2024-11-16 09:16:28,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:27" (1/1) ... [2024-11-16 09:16:28,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:27" (1/1) ... [2024-11-16 09:16:29,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:16:29,036 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:16:29,036 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:16:29,036 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:16:29,037 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:27" (1/1) ... [2024-11-16 09:16:29,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:16:29,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:16:29,072 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 09:16:29,079 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 09:16:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:16:29,121 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:16:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:16:29,121 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:16:29,122 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:16:29,123 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:16:29,123 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:16:29,123 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 09:16:29,123 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 09:16:29,123 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:16:29,123 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:16:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:16:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:16:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:16:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:16:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:16:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:16:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:16:29,252 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:16:29,254 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:16:37,168 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:16:37,169 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:16:37,169 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:16:37,170 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:16:37,170 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:16:37,170 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:16:37,170 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:16:37,601 INFO L? ?]: Removed 1765 outVars from TransFormulas that were not future-live. [2024-11-16 09:16:37,602 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:16:37,658 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:16:37,658 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:16:37,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:16:37 BoogieIcfgContainer [2024-11-16 09:16:37,659 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:16:37,661 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:16:37,661 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:16:37,665 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:16:37,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:16:24" (1/3) ... [2024-11-16 09:16:37,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed0874e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:16:37, skipping insertion in model container [2024-11-16 09:16:37,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:27" (2/3) ... [2024-11-16 09:16:37,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed0874e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:16:37, skipping insertion in model container [2024-11-16 09:16:37,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:16:37" (3/3) ... [2024-11-16 09:16:37,668 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.15.cil.c [2024-11-16 09:16:37,684 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:16:37,685 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:16:37,801 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:16:37,808 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;@6d9e9978, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:16:37,809 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:16:37,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 2677 states, 2638 states have (on average 1.8161485974222895) internal successors, (4791), 2643 states have internal predecessors, (4791), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-16 09:16:37,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:16:37,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:37,854 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:16:37,855 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:37,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:37,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1438548068, now seen corresponding path program 1 times [2024-11-16 09:16:37,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:37,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261413435] [2024-11-16 09:16:37,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:37,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:38,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:38,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:16:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:38,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:16:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:38,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:16:38,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:38,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:16:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:38,794 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 09:16:38,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:38,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261413435] [2024-11-16 09:16:38,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261413435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:38,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:38,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:16:38,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305399502] [2024-11-16 09:16:38,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:38,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:16:38,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:38,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:16:38,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:16:38,837 INFO L87 Difference]: Start difference. First operand has 2677 states, 2638 states have (on average 1.8161485974222895) internal successors, (4791), 2643 states have internal predecessors, (4791), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 4 states have internal predecessors, (184), 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 09:16:42,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:16:42,708 INFO L93 Difference]: Finished difference Result 6094 states and 10921 transitions. [2024-11-16 09:16:42,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:16:42,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 4 states have internal predecessors, (184), 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 195 [2024-11-16 09:16:42,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:16:42,754 INFO L225 Difference]: With dead ends: 6094 [2024-11-16 09:16:42,754 INFO L226 Difference]: Without dead ends: 3366 [2024-11-16 09:16:42,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:16:42,771 INFO L432 NwaCegarLoop]: 4434 mSDtfsCounter, 5788 mSDsluCounter, 13377 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5808 SdHoareTripleChecker+Valid, 17811 SdHoareTripleChecker+Invalid, 2557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:16:42,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5808 Valid, 17811 Invalid, 2557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 09:16:42,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2024-11-16 09:16:42,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 3058. [2024-11-16 09:16:42,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3058 states, 2992 states have (on average 1.7627005347593583) internal successors, (5274), 2996 states have internal predecessors, (5274), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2024-11-16 09:16:42,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3058 states to 3058 states and 5377 transitions. [2024-11-16 09:16:42,977 INFO L78 Accepts]: Start accepts. Automaton has 3058 states and 5377 transitions. Word has length 195 [2024-11-16 09:16:42,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:16:42,978 INFO L471 AbstractCegarLoop]: Abstraction has 3058 states and 5377 transitions. [2024-11-16 09:16:42,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 4 states have internal predecessors, (184), 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 09:16:42,979 INFO L276 IsEmpty]: Start isEmpty. Operand 3058 states and 5377 transitions. [2024-11-16 09:16:42,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:16:42,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:42,986 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:16:42,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:16:42,986 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:42,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:42,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1984794790, now seen corresponding path program 1 times [2024-11-16 09:16:42,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:42,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259830657] [2024-11-16 09:16:42,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:42,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:43,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:43,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:16:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:43,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:16:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:43,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:16:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:43,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:16:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:43,404 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 09:16:43,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:43,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259830657] [2024-11-16 09:16:43,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259830657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:43,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:43,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:16:43,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929348935] [2024-11-16 09:16:43,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:43,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:16:43,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:43,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:16:43,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:16:43,408 INFO L87 Difference]: Start difference. First operand 3058 states and 5377 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:16:48,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:16:48,481 INFO L93 Difference]: Finished difference Result 4922 states and 8296 transitions. [2024-11-16 09:16:48,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:16:48,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 09:16:48,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:16:48,501 INFO L225 Difference]: With dead ends: 4922 [2024-11-16 09:16:48,501 INFO L226 Difference]: Without dead ends: 4008 [2024-11-16 09:16:48,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:16:48,509 INFO L432 NwaCegarLoop]: 4684 mSDtfsCounter, 5761 mSDsluCounter, 18439 mSDsCounter, 0 mSdLazyCounter, 3868 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5781 SdHoareTripleChecker+Valid, 23123 SdHoareTripleChecker+Invalid, 3936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:16:48,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5781 Valid, 23123 Invalid, 3936 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3868 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-16 09:16:48,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4008 states. [2024-11-16 09:16:48,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4008 to 3496. [2024-11-16 09:16:48,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3496 states, 3401 states have (on average 1.7294913260805644) internal successors, (5882), 3406 states have internal predecessors, (5882), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-11-16 09:16:48,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3496 states to 3496 states and 6031 transitions. [2024-11-16 09:16:48,642 INFO L78 Accepts]: Start accepts. Automaton has 3496 states and 6031 transitions. Word has length 195 [2024-11-16 09:16:48,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:16:48,643 INFO L471 AbstractCegarLoop]: Abstraction has 3496 states and 6031 transitions. [2024-11-16 09:16:48,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:16:48,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3496 states and 6031 transitions. [2024-11-16 09:16:48,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:16:48,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:48,649 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:16:48,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:16:48,649 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:48,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:48,650 INFO L85 PathProgramCache]: Analyzing trace with hash -117658713, now seen corresponding path program 1 times [2024-11-16 09:16:48,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:48,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920993500] [2024-11-16 09:16:48,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:48,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:48,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:48,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:16:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:49,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:16:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:49,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:16:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:49,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:16:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:49,116 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 09:16:49,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:49,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920993500] [2024-11-16 09:16:49,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920993500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:49,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:49,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:16:49,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194475854] [2024-11-16 09:16:49,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:49,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:16:49,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:49,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:16:49,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:16:49,119 INFO L87 Difference]: Start difference. First operand 3496 states and 6031 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:16:53,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:16:53,382 INFO L93 Difference]: Finished difference Result 6557 states and 10812 transitions. [2024-11-16 09:16:53,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:16:53,383 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 09:16:53,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:16:53,406 INFO L225 Difference]: With dead ends: 6557 [2024-11-16 09:16:53,407 INFO L226 Difference]: Without dead ends: 5205 [2024-11-16 09:16:53,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:16:53,416 INFO L432 NwaCegarLoop]: 4682 mSDtfsCounter, 5756 mSDsluCounter, 18439 mSDsCounter, 0 mSdLazyCounter, 3843 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5776 SdHoareTripleChecker+Valid, 23121 SdHoareTripleChecker+Invalid, 3913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:16:53,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5776 Valid, 23121 Invalid, 3913 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 3843 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-16 09:16:53,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5205 states. [2024-11-16 09:16:53,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5205 to 4375. [2024-11-16 09:16:53,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4375 states, 4222 states have (on average 1.682378019895784) internal successors, (7103), 4229 states have internal predecessors, (7103), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2024-11-16 09:16:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 7348 transitions. [2024-11-16 09:16:53,612 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 7348 transitions. Word has length 195 [2024-11-16 09:16:53,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:16:53,613 INFO L471 AbstractCegarLoop]: Abstraction has 4375 states and 7348 transitions. [2024-11-16 09:16:53,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:16:53,614 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 7348 transitions. [2024-11-16 09:16:53,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:16:53,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:53,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:16:53,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:16:53,618 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:53,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:53,618 INFO L85 PathProgramCache]: Analyzing trace with hash -462574458, now seen corresponding path program 1 times [2024-11-16 09:16:53,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:53,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815983657] [2024-11-16 09:16:53,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:53,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:53,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:53,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:16:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:53,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:16:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:53,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:16:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:53,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:16:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:53,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:16:53,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:53,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815983657] [2024-11-16 09:16:53,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815983657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:53,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:53,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:16:53,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613746462] [2024-11-16 09:16:53,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:53,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:16:53,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:53,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:16:53,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:16:53,971 INFO L87 Difference]: Start difference. First operand 4375 states and 7348 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:16:57,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:16:57,964 INFO L93 Difference]: Finished difference Result 9722 states and 15649 transitions. [2024-11-16 09:16:57,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:16:57,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 09:16:57,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:16:57,997 INFO L225 Difference]: With dead ends: 9722 [2024-11-16 09:16:57,997 INFO L226 Difference]: Without dead ends: 7491 [2024-11-16 09:16:58,008 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 09:16:58,009 INFO L432 NwaCegarLoop]: 4682 mSDtfsCounter, 5755 mSDsluCounter, 18439 mSDsCounter, 0 mSdLazyCounter, 3830 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5775 SdHoareTripleChecker+Valid, 23121 SdHoareTripleChecker+Invalid, 3900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:16:58,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5775 Valid, 23121 Invalid, 3900 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 3830 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 09:16:58,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7491 states. [2024-11-16 09:16:58,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7491 to 6136. [2024-11-16 09:16:58,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6136 states, 5867 states have (on average 1.6275779785239475) internal successors, (9549), 5878 states have internal predecessors, (9549), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2024-11-16 09:16:58,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6136 states to 6136 states and 9992 transitions. [2024-11-16 09:16:58,246 INFO L78 Accepts]: Start accepts. Automaton has 6136 states and 9992 transitions. Word has length 195 [2024-11-16 09:16:58,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:16:58,246 INFO L471 AbstractCegarLoop]: Abstraction has 6136 states and 9992 transitions. [2024-11-16 09:16:58,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:16:58,247 INFO L276 IsEmpty]: Start isEmpty. Operand 6136 states and 9992 transitions. [2024-11-16 09:16:58,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:16:58,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:58,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:16:58,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:16:58,252 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:58,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:58,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1166437433, now seen corresponding path program 1 times [2024-11-16 09:16:58,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:58,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629928162] [2024-11-16 09:16:58,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:58,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:58,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:58,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:16:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:58,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:16:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:58,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:16:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:58,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:16:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:58,619 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 09:16:58,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:58,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629928162] [2024-11-16 09:16:58,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629928162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:58,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:58,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:16:58,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463251710] [2024-11-16 09:16:58,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:58,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:16:58,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:58,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:16:58,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:16:58,622 INFO L87 Difference]: Start difference. First operand 6136 states and 9992 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:02,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:02,956 INFO L93 Difference]: Finished difference Result 16053 states and 25343 transitions. [2024-11-16 09:17:02,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:17:02,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 09:17:02,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:03,015 INFO L225 Difference]: With dead ends: 16053 [2024-11-16 09:17:03,016 INFO L226 Difference]: Without dead ends: 12061 [2024-11-16 09:17:03,033 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 09:17:03,034 INFO L432 NwaCegarLoop]: 4682 mSDtfsCounter, 5754 mSDsluCounter, 18439 mSDsCounter, 0 mSdLazyCounter, 3817 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5774 SdHoareTripleChecker+Valid, 23121 SdHoareTripleChecker+Invalid, 3887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:03,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5774 Valid, 23121 Invalid, 3887 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 3817 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 09:17:03,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12061 states. [2024-11-16 09:17:03,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12061 to 9665. [2024-11-16 09:17:03,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9665 states, 9164 states have (on average 1.5769314709733742) internal successors, (14451), 9183 states have internal predecessors, (14451), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-11-16 09:17:03,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9665 states to 9665 states and 15308 transitions. [2024-11-16 09:17:03,416 INFO L78 Accepts]: Start accepts. Automaton has 9665 states and 15308 transitions. Word has length 195 [2024-11-16 09:17:03,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:03,417 INFO L471 AbstractCegarLoop]: Abstraction has 9665 states and 15308 transitions. [2024-11-16 09:17:03,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:03,418 INFO L276 IsEmpty]: Start isEmpty. Operand 9665 states and 15308 transitions. [2024-11-16 09:17:03,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:17:03,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:03,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:03,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:17:03,424 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:03,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:03,425 INFO L85 PathProgramCache]: Analyzing trace with hash -912048026, now seen corresponding path program 1 times [2024-11-16 09:17:03,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:03,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988472383] [2024-11-16 09:17:03,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:03,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:17:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:17:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:17:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:17:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,739 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 09:17:03,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:03,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988472383] [2024-11-16 09:17:03,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988472383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:03,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:03,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:03,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790945313] [2024-11-16 09:17:03,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:03,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:03,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:03,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:03,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:03,743 INFO L87 Difference]: Start difference. First operand 9665 states and 15308 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:07,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:07,915 INFO L93 Difference]: Finished difference Result 28716 states and 44793 transitions. [2024-11-16 09:17:07,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:17:07,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 09:17:07,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:07,995 INFO L225 Difference]: With dead ends: 28716 [2024-11-16 09:17:07,995 INFO L226 Difference]: Without dead ends: 21195 [2024-11-16 09:17:08,035 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 09:17:08,036 INFO L432 NwaCegarLoop]: 4682 mSDtfsCounter, 5753 mSDsluCounter, 18439 mSDsCounter, 0 mSdLazyCounter, 3804 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5773 SdHoareTripleChecker+Valid, 23121 SdHoareTripleChecker+Invalid, 3874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:08,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5773 Valid, 23121 Invalid, 3874 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 3804 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 09:17:08,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21195 states. [2024-11-16 09:17:08,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21195 to 16738. [2024-11-16 09:17:08,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16738 states, 15773 states have (on average 1.5391491789767324) internal successors, (24277), 15808 states have internal predecessors, (24277), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-11-16 09:17:08,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16738 states to 16738 states and 26016 transitions. [2024-11-16 09:17:08,824 INFO L78 Accepts]: Start accepts. Automaton has 16738 states and 26016 transitions. Word has length 195 [2024-11-16 09:17:08,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:08,825 INFO L471 AbstractCegarLoop]: Abstraction has 16738 states and 26016 transitions. [2024-11-16 09:17:08,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:08,825 INFO L276 IsEmpty]: Start isEmpty. Operand 16738 states and 26016 transitions. [2024-11-16 09:17:08,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:17:08,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:08,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:08,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:17:08,837 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:08,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:08,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1873673241, now seen corresponding path program 1 times [2024-11-16 09:17:08,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:08,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767339369] [2024-11-16 09:17:08,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:08,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:08,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:09,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:17:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:09,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:17:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:09,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:17:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:09,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:17:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:09,163 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 09:17:09,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:09,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767339369] [2024-11-16 09:17:09,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767339369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:09,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:09,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:09,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667104157] [2024-11-16 09:17:09,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:09,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:09,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:09,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:09,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:09,167 INFO L87 Difference]: Start difference. First operand 16738 states and 26016 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:11,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:11,879 INFO L93 Difference]: Finished difference Result 36067 states and 56263 transitions. [2024-11-16 09:17:11,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:17:11,880 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 09:17:11,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:11,951 INFO L225 Difference]: With dead ends: 36067 [2024-11-16 09:17:11,951 INFO L226 Difference]: Without dead ends: 21473 [2024-11-16 09:17:11,991 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 09:17:11,992 INFO L432 NwaCegarLoop]: 4347 mSDtfsCounter, 5255 mSDsluCounter, 17102 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5276 SdHoareTripleChecker+Valid, 21449 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:11,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5276 Valid, 21449 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:17:12,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21473 states. [2024-11-16 09:17:12,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21473 to 16738. [2024-11-16 09:17:12,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16738 states, 15773 states have (on average 1.5370569961326317) internal successors, (24244), 15808 states have internal predecessors, (24244), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-11-16 09:17:12,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16738 states to 16738 states and 25983 transitions. [2024-11-16 09:17:12,719 INFO L78 Accepts]: Start accepts. Automaton has 16738 states and 25983 transitions. Word has length 195 [2024-11-16 09:17:12,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:12,720 INFO L471 AbstractCegarLoop]: Abstraction has 16738 states and 25983 transitions. [2024-11-16 09:17:12,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:12,720 INFO L276 IsEmpty]: Start isEmpty. Operand 16738 states and 25983 transitions. [2024-11-16 09:17:12,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:17:12,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:12,739 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:12,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:17:12,742 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:12,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:12,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1558989894, now seen corresponding path program 1 times [2024-11-16 09:17:12,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:12,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116013519] [2024-11-16 09:17:12,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:12,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:12,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:12,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:17:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:12,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:17:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:13,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:17:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:13,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:17:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:13,017 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 09:17:13,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:13,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116013519] [2024-11-16 09:17:13,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116013519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:13,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:13,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:13,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538310192] [2024-11-16 09:17:13,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:13,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:13,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:13,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:13,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:13,020 INFO L87 Difference]: Start difference. First operand 16738 states and 25983 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:15,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:15,592 INFO L93 Difference]: Finished difference Result 36033 states and 56096 transitions. [2024-11-16 09:17:15,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:17:15,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 09:17:15,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:15,675 INFO L225 Difference]: With dead ends: 36033 [2024-11-16 09:17:15,676 INFO L226 Difference]: Without dead ends: 21439 [2024-11-16 09:17:15,720 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 09:17:15,721 INFO L432 NwaCegarLoop]: 4347 mSDtfsCounter, 5439 mSDsluCounter, 12868 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5460 SdHoareTripleChecker+Valid, 17215 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:15,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5460 Valid, 17215 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:17:15,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21439 states. [2024-11-16 09:17:16,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21439 to 16738. [2024-11-16 09:17:16,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16738 states, 15773 states have (on average 1.534964813288531) internal successors, (24211), 15808 states have internal predecessors, (24211), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-11-16 09:17:16,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16738 states to 16738 states and 25950 transitions. [2024-11-16 09:17:16,389 INFO L78 Accepts]: Start accepts. Automaton has 16738 states and 25950 transitions. Word has length 195 [2024-11-16 09:17:16,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:16,390 INFO L471 AbstractCegarLoop]: Abstraction has 16738 states and 25950 transitions. [2024-11-16 09:17:16,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:16,390 INFO L276 IsEmpty]: Start isEmpty. Operand 16738 states and 25950 transitions. [2024-11-16 09:17:16,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:17:16,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:16,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:16,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:17:16,403 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:16,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:16,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1808268295, now seen corresponding path program 1 times [2024-11-16 09:17:16,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:16,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645834721] [2024-11-16 09:17:16,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:16,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:16,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:16,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:17:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:16,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:17:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:16,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:17:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:16,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:17:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:16,675 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 09:17:16,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:16,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645834721] [2024-11-16 09:17:16,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645834721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:16,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:16,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:16,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343043692] [2024-11-16 09:17:16,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:16,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:16,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:16,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:16,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:16,678 INFO L87 Difference]: Start difference. First operand 16738 states and 25950 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:19,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:19,159 INFO L93 Difference]: Finished difference Result 35965 states and 55861 transitions. [2024-11-16 09:17:19,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:17:19,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 09:17:19,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:19,247 INFO L225 Difference]: With dead ends: 35965 [2024-11-16 09:17:19,247 INFO L226 Difference]: Without dead ends: 21371 [2024-11-16 09:17:19,290 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 09:17:19,291 INFO L432 NwaCegarLoop]: 4347 mSDtfsCounter, 5255 mSDsluCounter, 17102 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5276 SdHoareTripleChecker+Valid, 21449 SdHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:19,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5276 Valid, 21449 Invalid, 1980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 09:17:19,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21371 states. [2024-11-16 09:17:19,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21371 to 16738. [2024-11-16 09:17:19,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16738 states, 15773 states have (on average 1.5328726304444305) internal successors, (24178), 15808 states have internal predecessors, (24178), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-11-16 09:17:19,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16738 states to 16738 states and 25917 transitions. [2024-11-16 09:17:19,953 INFO L78 Accepts]: Start accepts. Automaton has 16738 states and 25917 transitions. Word has length 195 [2024-11-16 09:17:19,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:19,954 INFO L471 AbstractCegarLoop]: Abstraction has 16738 states and 25917 transitions. [2024-11-16 09:17:19,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:19,954 INFO L276 IsEmpty]: Start isEmpty. Operand 16738 states and 25917 transitions. [2024-11-16 09:17:19,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:17:19,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:19,966 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:19,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:17:19,967 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:19,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:19,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1784764408, now seen corresponding path program 1 times [2024-11-16 09:17:19,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:19,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389228288] [2024-11-16 09:17:19,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:19,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:20,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:20,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:17:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:20,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:17:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:20,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:17:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:20,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:17:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:20,245 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 09:17:20,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:20,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389228288] [2024-11-16 09:17:20,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389228288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:20,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:20,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:20,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133655100] [2024-11-16 09:17:20,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:20,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:20,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:20,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:20,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:20,247 INFO L87 Difference]: Start difference. First operand 16738 states and 25917 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:22,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:22,455 INFO L93 Difference]: Finished difference Result 35931 states and 55694 transitions. [2024-11-16 09:17:22,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:17:22,456 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 09:17:22,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:22,527 INFO L225 Difference]: With dead ends: 35931 [2024-11-16 09:17:22,528 INFO L226 Difference]: Without dead ends: 21337 [2024-11-16 09:17:22,572 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 09:17:22,573 INFO L432 NwaCegarLoop]: 4347 mSDtfsCounter, 5433 mSDsluCounter, 12868 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5454 SdHoareTripleChecker+Valid, 17215 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:22,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5454 Valid, 17215 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:17:22,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21337 states. [2024-11-16 09:17:23,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21337 to 16738. [2024-11-16 09:17:23,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16738 states, 15773 states have (on average 1.5307804476003297) internal successors, (24145), 15808 states have internal predecessors, (24145), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-11-16 09:17:23,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16738 states to 16738 states and 25884 transitions. [2024-11-16 09:17:23,385 INFO L78 Accepts]: Start accepts. Automaton has 16738 states and 25884 transitions. Word has length 195 [2024-11-16 09:17:23,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:23,386 INFO L471 AbstractCegarLoop]: Abstraction has 16738 states and 25884 transitions. [2024-11-16 09:17:23,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:23,386 INFO L276 IsEmpty]: Start isEmpty. Operand 16738 states and 25884 transitions. [2024-11-16 09:17:23,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:17:23,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:23,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:23,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:17:23,399 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:23,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:23,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2117203943, now seen corresponding path program 1 times [2024-11-16 09:17:23,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:23,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933468535] [2024-11-16 09:17:23,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:23,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:23,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:23,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:17:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:23,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:17:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:23,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:17:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:23,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:17:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:23,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:23,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:23,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933468535] [2024-11-16 09:17:23,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933468535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:23,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:23,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:23,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537592502] [2024-11-16 09:17:23,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:23,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:23,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:23,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:23,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:23,656 INFO L87 Difference]: Start difference. First operand 16738 states and 25884 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:25,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:25,735 INFO L93 Difference]: Finished difference Result 35897 states and 55527 transitions. [2024-11-16 09:17:25,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:17:25,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 09:17:25,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:25,808 INFO L225 Difference]: With dead ends: 35897 [2024-11-16 09:17:25,809 INFO L226 Difference]: Without dead ends: 21303 [2024-11-16 09:17:25,855 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 09:17:25,856 INFO L432 NwaCegarLoop]: 4347 mSDtfsCounter, 5431 mSDsluCounter, 12868 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5452 SdHoareTripleChecker+Valid, 17215 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:25,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5452 Valid, 17215 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1711 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:17:25,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21303 states. [2024-11-16 09:17:26,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21303 to 16738. [2024-11-16 09:17:26,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16738 states, 15773 states have (on average 1.528688264756229) internal successors, (24112), 15808 states have internal predecessors, (24112), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-11-16 09:17:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16738 states to 16738 states and 25851 transitions. [2024-11-16 09:17:26,884 INFO L78 Accepts]: Start accepts. Automaton has 16738 states and 25851 transitions. Word has length 195 [2024-11-16 09:17:26,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:26,884 INFO L471 AbstractCegarLoop]: Abstraction has 16738 states and 25851 transitions. [2024-11-16 09:17:26,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:26,885 INFO L276 IsEmpty]: Start isEmpty. Operand 16738 states and 25851 transitions. [2024-11-16 09:17:26,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:17:26,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:26,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:26,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:17:26,900 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:26,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:26,900 INFO L85 PathProgramCache]: Analyzing trace with hash 303411240, now seen corresponding path program 1 times [2024-11-16 09:17:26,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:26,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75701632] [2024-11-16 09:17:26,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:26,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:27,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:27,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:17:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:27,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:17:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:27,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:17:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:27,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:17:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:27,240 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 09:17:27,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:27,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75701632] [2024-11-16 09:17:27,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75701632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:27,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:27,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:27,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532474488] [2024-11-16 09:17:27,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:27,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:27,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:27,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:27,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:27,243 INFO L87 Difference]: Start difference. First operand 16738 states and 25851 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:31,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:31,874 INFO L93 Difference]: Finished difference Result 53839 states and 82659 transitions. [2024-11-16 09:17:31,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:17:31,875 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 195 [2024-11-16 09:17:31,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:31,981 INFO L225 Difference]: With dead ends: 53839 [2024-11-16 09:17:31,981 INFO L226 Difference]: Without dead ends: 39245 [2024-11-16 09:17:32,047 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 09:17:32,048 INFO L432 NwaCegarLoop]: 4682 mSDtfsCounter, 5719 mSDsluCounter, 18439 mSDsCounter, 0 mSdLazyCounter, 3647 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5739 SdHoareTripleChecker+Valid, 23121 SdHoareTripleChecker+Invalid, 3717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:32,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5739 Valid, 23121 Invalid, 3717 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 3647 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 09:17:32,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39245 states. [2024-11-16 09:17:33,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39245 to 31113. [2024-11-16 09:17:33,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31113 states, 29220 states have (on average 1.5019164955509925) internal successors, (43886), 29287 states have internal predecessors, (43886), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2024-11-16 09:17:33,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31113 states to 31113 states and 47551 transitions. [2024-11-16 09:17:33,428 INFO L78 Accepts]: Start accepts. Automaton has 31113 states and 47551 transitions. Word has length 195 [2024-11-16 09:17:33,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:33,428 INFO L471 AbstractCegarLoop]: Abstraction has 31113 states and 47551 transitions. [2024-11-16 09:17:33,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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 09:17:33,428 INFO L276 IsEmpty]: Start isEmpty. Operand 31113 states and 47551 transitions. [2024-11-16 09:17:33,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 09:17:33,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:33,447 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:33,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:17:33,447 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:33,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:33,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1353280455, now seen corresponding path program 1 times [2024-11-16 09:17:33,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:33,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319255042] [2024-11-16 09:17:33,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:33,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 09:17:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 09:17:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:17:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 09:17:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,720 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 09:17:33,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:33,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319255042] [2024-11-16 09:17:33,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319255042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:33,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:33,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:33,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143907660] [2024-11-16 09:17:33,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:33,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:33,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:33,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:33,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:33,723 INFO L87 Difference]: Start difference. First operand 31113 states and 47551 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 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)