./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.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 ea2a15ada4a316287b701d4046ee75147e37e2af1b0a94d8406d231cafa83990 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:12:43,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:12:43,102 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:12:43,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:12:43,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:12:43,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:12:43,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:12:43,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:12:43,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:12:43,131 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:12:43,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:12:43,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:12:43,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:12:43,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:12:43,133 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:12:43,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:12:43,133 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:12:43,134 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:12:43,134 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:12:43,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:12:43,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:12:43,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:12:43,135 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:12:43,135 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:12:43,135 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:12:43,135 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:12:43,136 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:12:43,136 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:12:43,136 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:12:43,136 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:12:43,136 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:12:43,137 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:12:43,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:12:43,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:12:43,137 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:12:43,137 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:12:43,137 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:12:43,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:12:43,138 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:12:43,138 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:12:43,138 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:12:43,138 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:12:43,138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea2a15ada4a316287b701d4046ee75147e37e2af1b0a94d8406d231cafa83990 [2024-11-16 09:12:43,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:12:43,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:12:43,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:12:43,358 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:12:43,358 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:12:43,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.c [2024-11-16 09:12:44,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:12:45,057 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:12:45,058 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.c [2024-11-16 09:12:45,101 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e57e8cf7/f24a354f9bd743a9b54d47cde795ae7b/FLAGa28b4aeca [2024-11-16 09:12:45,199 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e57e8cf7/f24a354f9bd743a9b54d47cde795ae7b [2024-11-16 09:12:45,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:12:45,203 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:12:45,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:12:45,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:12:45,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:12:45,211 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:12:45" (1/1) ... [2024-11-16 09:12:45,211 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f84397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:45, skipping insertion in model container [2024-11-16 09:12:45,212 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:12:45" (1/1) ... [2024-11-16 09:12:45,368 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:12:46,495 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.c[380323,380336] [2024-11-16 09:12:46,525 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.c[383339,383352] [2024-11-16 09:12:46,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:12:46,674 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:12:47,265 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.c[380323,380336] [2024-11-16 09:12:47,270 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-2.c[383339,383352] [2024-11-16 09:12:47,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:12:47,330 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:12:47,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:47 WrapperNode [2024-11-16 09:12:47,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:12:47,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:12:47,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:12:47,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:12:47,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:47" (1/1) ... [2024-11-16 09:12:47,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:47" (1/1) ... [2024-11-16 09:12:47,688 INFO L138 Inliner]: procedures = 58, calls = 63, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 12928 [2024-11-16 09:12:47,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:12:47,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:12:47,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:12:47,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:12:47,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:47" (1/1) ... [2024-11-16 09:12:47,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:47" (1/1) ... [2024-11-16 09:12:47,749 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:47" (1/1) ... [2024-11-16 09:12:47,903 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 09:12:47,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:47" (1/1) ... [2024-11-16 09:12:47,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:47" (1/1) ... [2024-11-16 09:12:47,990 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:47" (1/1) ... [2024-11-16 09:12:48,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:47" (1/1) ... [2024-11-16 09:12:48,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:47" (1/1) ... [2024-11-16 09:12:48,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:47" (1/1) ... [2024-11-16 09:12:48,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:12:48,085 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:12:48,085 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:12:48,085 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:12:48,086 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:47" (1/1) ... [2024-11-16 09:12:48,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:12:48,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:12:48,112 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 09:12:48,114 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 09:12:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:12:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:12:48,195 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:12:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:12:48,195 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:12:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:12:48,195 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:12:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 09:12:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 09:12:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:12:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:12:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:12:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:12:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:12:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:12:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:12:48,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:12:48,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:12:48,287 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:12:48,288 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:12:53,970 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:12:53,971 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:12:53,971 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:12:53,971 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:12:53,971 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:12:53,971 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:12:53,971 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:12:54,208 INFO L? ?]: Removed 1729 outVars from TransFormulas that were not future-live. [2024-11-16 09:12:54,208 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:12:54,255 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:12:54,255 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:12:54,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:12:54 BoogieIcfgContainer [2024-11-16 09:12:54,256 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:12:54,258 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:12:54,258 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:12:54,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:12:54,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:12:45" (1/3) ... [2024-11-16 09:12:54,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473a777d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:12:54, skipping insertion in model container [2024-11-16 09:12:54,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:47" (2/3) ... [2024-11-16 09:12:54,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473a777d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:12:54, skipping insertion in model container [2024-11-16 09:12:54,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:12:54" (3/3) ... [2024-11-16 09:12:54,262 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.07.cil-2.c [2024-11-16 09:12:54,275 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:12:54,275 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:12:54,363 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:12:54,370 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;@43317f4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:12:54,370 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:12:54,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 2499 states, 2466 states have (on average 1.832522303325223) internal successors, (4519), 2471 states have internal predecessors, (4519), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-16 09:12:54,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:12:54,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:12:54,397 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] [2024-11-16 09:12:54,397 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:12:54,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:12:54,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1274993052, now seen corresponding path program 1 times [2024-11-16 09:12:54,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:12:54,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586997389] [2024-11-16 09:12:54,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:12:54,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:12:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:54,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:12:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:54,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:12:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:54,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:12:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:55,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:12:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:55,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:12:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:55,022 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 09:12:55,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:12:55,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586997389] [2024-11-16 09:12:55,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586997389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:12:55,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:12:55,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:12:55,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397330927] [2024-11-16 09:12:55,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:12:55,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:12:55,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:12:55,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:12:55,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:12:55,060 INFO L87 Difference]: Start difference. First operand has 2499 states, 2466 states have (on average 1.832522303325223) internal successors, (4519), 2471 states have internal predecessors, (4519), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:12:56,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:12:56,419 INFO L93 Difference]: Finished difference Result 5073 states and 9275 transitions. [2024-11-16 09:12:56,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:12:56,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 129 [2024-11-16 09:12:56,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:12:56,444 INFO L225 Difference]: With dead ends: 5073 [2024-11-16 09:12:56,444 INFO L226 Difference]: Without dead ends: 2523 [2024-11-16 09:12:56,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:12:56,453 INFO L432 NwaCegarLoop]: 4276 mSDtfsCounter, 4797 mSDsluCounter, 16910 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4812 SdHoareTripleChecker+Valid, 21186 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:12:56,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4812 Valid, 21186 Invalid, 1264 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:12:56,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2024-11-16 09:12:56,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2420. [2024-11-16 09:12:56,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 2389 states have (on average 1.8229384679782337) internal successors, (4355), 2392 states have internal predecessors, (4355), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-16 09:12:56,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 4399 transitions. [2024-11-16 09:12:56,570 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 4399 transitions. Word has length 129 [2024-11-16 09:12:56,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:12:56,570 INFO L471 AbstractCegarLoop]: Abstraction has 2420 states and 4399 transitions. [2024-11-16 09:12:56,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:12:56,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 4399 transitions. [2024-11-16 09:12:56,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:12:56,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:12:56,574 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] [2024-11-16 09:12:56,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:12:56,575 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:12:56,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:12:56,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1938165957, now seen corresponding path program 1 times [2024-11-16 09:12:56,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:12:56,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975980017] [2024-11-16 09:12:56,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:12:56,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:12:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:56,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:12:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:56,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:12:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:56,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:12:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:56,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:12:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:56,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:12:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:56,824 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 09:12:56,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:12:56,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975980017] [2024-11-16 09:12:56,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975980017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:12:56,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:12:56,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:12:56,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031008937] [2024-11-16 09:12:56,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:12:56,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:12:56,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:12:56,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:12:56,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:12:56,831 INFO L87 Difference]: Start difference. First operand 2420 states and 4399 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:12:58,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:12:58,859 INFO L93 Difference]: Finished difference Result 3179 states and 5572 transitions. [2024-11-16 09:12:58,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:12:58,860 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 129 [2024-11-16 09:12:58,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:12:58,869 INFO L225 Difference]: With dead ends: 3179 [2024-11-16 09:12:58,869 INFO L226 Difference]: Without dead ends: 2897 [2024-11-16 09:12:58,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:12:58,872 INFO L432 NwaCegarLoop]: 4429 mSDtfsCounter, 4951 mSDsluCounter, 17493 mSDsCounter, 0 mSdLazyCounter, 2362 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4965 SdHoareTripleChecker+Valid, 21922 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:12:58,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4965 Valid, 21922 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2362 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 09:12:58,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2024-11-16 09:12:58,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2711. [2024-11-16 09:12:58,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2654 states have (on average 1.790504898266767) internal successors, (4752), 2659 states have internal predecessors, (4752), 41 states have call successors, (41), 13 states have call predecessors, (41), 14 states have return successors, (46), 40 states have call predecessors, (46), 39 states have call successors, (46) [2024-11-16 09:12:58,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 4839 transitions. [2024-11-16 09:12:58,934 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 4839 transitions. Word has length 129 [2024-11-16 09:12:58,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:12:58,935 INFO L471 AbstractCegarLoop]: Abstraction has 2711 states and 4839 transitions. [2024-11-16 09:12:58,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:12:58,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 4839 transitions. [2024-11-16 09:12:58,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:12:58,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:12:58,938 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] [2024-11-16 09:12:58,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:12:58,938 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:12:58,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:12:58,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1837509052, now seen corresponding path program 1 times [2024-11-16 09:12:58,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:12:58,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585292609] [2024-11-16 09:12:58,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:12:58,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:12:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:59,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:12:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:59,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:12:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:59,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:12:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:59,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:12:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:59,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:12:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:59,115 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 09:12:59,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:12:59,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585292609] [2024-11-16 09:12:59,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585292609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:12:59,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:12:59,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:12:59,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104827866] [2024-11-16 09:12:59,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:12:59,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:12:59,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:12:59,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:12:59,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:12:59,118 INFO L87 Difference]: Start difference. First operand 2711 states and 4839 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:00,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:00,783 INFO L93 Difference]: Finished difference Result 4157 states and 7054 transitions. [2024-11-16 09:13:00,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:13:00,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 129 [2024-11-16 09:13:00,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:00,797 INFO L225 Difference]: With dead ends: 4157 [2024-11-16 09:13:00,797 INFO L226 Difference]: Without dead ends: 3586 [2024-11-16 09:13:00,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:13:00,801 INFO L432 NwaCegarLoop]: 4384 mSDtfsCounter, 4955 mSDsluCounter, 17423 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4969 SdHoareTripleChecker+Valid, 21807 SdHoareTripleChecker+Invalid, 2303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:00,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4969 Valid, 21807 Invalid, 2303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:13:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3586 states. [2024-11-16 09:13:00,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3586 to 3254. [2024-11-16 09:13:00,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3254 states, 3151 states have (on average 1.7400825134877818) internal successors, (5483), 3158 states have internal predecessors, (5483), 73 states have call successors, (73), 25 states have call predecessors, (73), 28 states have return successors, (88), 74 states have call predecessors, (88), 71 states have call successors, (88) [2024-11-16 09:13:00,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 5644 transitions. [2024-11-16 09:13:00,885 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 5644 transitions. Word has length 129 [2024-11-16 09:13:00,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:00,886 INFO L471 AbstractCegarLoop]: Abstraction has 3254 states and 5644 transitions. [2024-11-16 09:13:00,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:00,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 5644 transitions. [2024-11-16 09:13:00,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:13:00,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:00,889 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] [2024-11-16 09:13:00,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:13:00,889 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:00,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:00,890 INFO L85 PathProgramCache]: Analyzing trace with hash 850926363, now seen corresponding path program 1 times [2024-11-16 09:13:00,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:00,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763019979] [2024-11-16 09:13:00,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:00,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:00,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:00,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:01,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:01,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:01,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:01,049 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 09:13:01,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:01,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763019979] [2024-11-16 09:13:01,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763019979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:01,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:01,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:01,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741169976] [2024-11-16 09:13:01,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:01,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:01,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:01,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:01,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:01,052 INFO L87 Difference]: Start difference. First operand 3254 states and 5644 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:02,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:02,699 INFO L93 Difference]: Finished difference Result 6076 states and 9955 transitions. [2024-11-16 09:13:02,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:13:02,699 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 129 [2024-11-16 09:13:02,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:02,714 INFO L225 Difference]: With dead ends: 6076 [2024-11-16 09:13:02,714 INFO L226 Difference]: Without dead ends: 4962 [2024-11-16 09:13:02,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:13:02,718 INFO L432 NwaCegarLoop]: 4387 mSDtfsCounter, 4955 mSDsluCounter, 17423 mSDsCounter, 0 mSdLazyCounter, 2241 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4969 SdHoareTripleChecker+Valid, 21810 SdHoareTripleChecker+Invalid, 2309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:02,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4969 Valid, 21810 Invalid, 2309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2241 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:13:02,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4962 states. [2024-11-16 09:13:02,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4962 to 4343. [2024-11-16 09:13:02,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4343 states, 4148 states have (on average 1.67526518804243) internal successors, (6949), 4159 states have internal predecessors, (6949), 137 states have call successors, (137), 49 states have call predecessors, (137), 56 states have return successors, (178), 142 states have call predecessors, (178), 135 states have call successors, (178) [2024-11-16 09:13:02,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4343 states to 4343 states and 7264 transitions. [2024-11-16 09:13:02,834 INFO L78 Accepts]: Start accepts. Automaton has 4343 states and 7264 transitions. Word has length 129 [2024-11-16 09:13:02,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:02,835 INFO L471 AbstractCegarLoop]: Abstraction has 4343 states and 7264 transitions. [2024-11-16 09:13:02,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:02,836 INFO L276 IsEmpty]: Start isEmpty. Operand 4343 states and 7264 transitions. [2024-11-16 09:13:02,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:13:02,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:02,838 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] [2024-11-16 09:13:02,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:13:02,839 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:02,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:02,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1927479772, now seen corresponding path program 1 times [2024-11-16 09:13:02,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:02,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576187924] [2024-11-16 09:13:02,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:02,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:02,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:02,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:02,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:02,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:02,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:03,001 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 09:13:03,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:03,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576187924] [2024-11-16 09:13:03,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576187924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:03,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:03,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:03,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331371483] [2024-11-16 09:13:03,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:03,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:03,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:03,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:03,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:03,004 INFO L87 Difference]: Start difference. First operand 4343 states and 7264 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:04,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:04,862 INFO L93 Difference]: Finished difference Result 9913 states and 15773 transitions. [2024-11-16 09:13:04,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:13:04,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 129 [2024-11-16 09:13:04,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:04,891 INFO L225 Difference]: With dead ends: 9913 [2024-11-16 09:13:04,891 INFO L226 Difference]: Without dead ends: 7710 [2024-11-16 09:13:04,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:13:04,902 INFO L432 NwaCegarLoop]: 4384 mSDtfsCounter, 4955 mSDsluCounter, 17423 mSDsCounter, 0 mSdLazyCounter, 2217 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4969 SdHoareTripleChecker+Valid, 21807 SdHoareTripleChecker+Invalid, 2285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:04,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4969 Valid, 21807 Invalid, 2285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2217 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:13:04,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7710 states. [2024-11-16 09:13:05,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7710 to 6528. [2024-11-16 09:13:05,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6528 states, 6149 states have (on average 1.6085542364612133) internal successors, (9891), 6168 states have internal predecessors, (9891), 265 states have call successors, (265), 97 states have call predecessors, (265), 112 states have return successors, (376), 278 states have call predecessors, (376), 263 states have call successors, (376) [2024-11-16 09:13:05,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6528 states to 6528 states and 10532 transitions. [2024-11-16 09:13:05,188 INFO L78 Accepts]: Start accepts. Automaton has 6528 states and 10532 transitions. Word has length 129 [2024-11-16 09:13:05,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:05,189 INFO L471 AbstractCegarLoop]: Abstraction has 6528 states and 10532 transitions. [2024-11-16 09:13:05,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:05,189 INFO L276 IsEmpty]: Start isEmpty. Operand 6528 states and 10532 transitions. [2024-11-16 09:13:05,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:13:05,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:05,194 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] [2024-11-16 09:13:05,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:13:05,194 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:05,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:05,195 INFO L85 PathProgramCache]: Analyzing trace with hash -531644677, now seen corresponding path program 1 times [2024-11-16 09:13:05,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:05,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506713349] [2024-11-16 09:13:05,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:05,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:05,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:05,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:05,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:05,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:05,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:05,341 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 09:13:05,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:05,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506713349] [2024-11-16 09:13:05,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506713349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:05,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:05,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:05,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054726569] [2024-11-16 09:13:05,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:05,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:05,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:05,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:05,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:05,344 INFO L87 Difference]: Start difference. First operand 6528 states and 10532 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:07,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:07,157 INFO L93 Difference]: Finished difference Result 17586 states and 27467 transitions. [2024-11-16 09:13:07,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:13:07,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 129 [2024-11-16 09:13:07,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:07,198 INFO L225 Difference]: With dead ends: 17586 [2024-11-16 09:13:07,198 INFO L226 Difference]: Without dead ends: 13198 [2024-11-16 09:13:07,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:13:07,214 INFO L432 NwaCegarLoop]: 4386 mSDtfsCounter, 4955 mSDsluCounter, 17423 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4969 SdHoareTripleChecker+Valid, 21809 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:07,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4969 Valid, 21809 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:13:07,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13198 states. [2024-11-16 09:13:07,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13198 to 10913. [2024-11-16 09:13:07,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10913 states, 10166 states have (on average 1.5539051741097778) internal successors, (15797), 10201 states have internal predecessors, (15797), 521 states have call successors, (521), 193 states have call predecessors, (521), 224 states have return successors, (826), 550 states have call predecessors, (826), 519 states have call successors, (826) [2024-11-16 09:13:07,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10913 states to 10913 states and 17144 transitions. [2024-11-16 09:13:07,576 INFO L78 Accepts]: Start accepts. Automaton has 10913 states and 17144 transitions. Word has length 129 [2024-11-16 09:13:07,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:07,577 INFO L471 AbstractCegarLoop]: Abstraction has 10913 states and 17144 transitions. [2024-11-16 09:13:07,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:07,578 INFO L276 IsEmpty]: Start isEmpty. Operand 10913 states and 17144 transitions. [2024-11-16 09:13:07,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:13:07,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:07,585 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] [2024-11-16 09:13:07,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:13:07,585 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:07,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:07,586 INFO L85 PathProgramCache]: Analyzing trace with hash -472423940, now seen corresponding path program 1 times [2024-11-16 09:13:07,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:07,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323148886] [2024-11-16 09:13:07,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:07,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:07,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:07,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:07,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:07,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:07,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:07,735 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 09:13:07,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:07,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323148886] [2024-11-16 09:13:07,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323148886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:07,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:07,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:07,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731157265] [2024-11-16 09:13:07,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:07,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:07,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:07,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:07,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:07,739 INFO L87 Difference]: Start difference. First operand 10913 states and 17144 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:08,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:08,790 INFO L93 Difference]: Finished difference Result 22096 states and 34535 transitions. [2024-11-16 09:13:08,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:13:08,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 129 [2024-11-16 09:13:08,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:08,826 INFO L225 Difference]: With dead ends: 22096 [2024-11-16 09:13:08,827 INFO L226 Difference]: Without dead ends: 13321 [2024-11-16 09:13:08,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:13:08,849 INFO L432 NwaCegarLoop]: 4207 mSDtfsCounter, 4845 mSDsluCounter, 12502 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4860 SdHoareTripleChecker+Valid, 16709 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:08,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4860 Valid, 16709 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:13:08,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13321 states. [2024-11-16 09:13:09,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13321 to 10913. [2024-11-16 09:13:09,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10913 states, 10166 states have (on average 1.5506590596104664) internal successors, (15764), 10201 states have internal predecessors, (15764), 521 states have call successors, (521), 193 states have call predecessors, (521), 224 states have return successors, (826), 550 states have call predecessors, (826), 519 states have call successors, (826) [2024-11-16 09:13:09,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10913 states to 10913 states and 17111 transitions. [2024-11-16 09:13:09,181 INFO L78 Accepts]: Start accepts. Automaton has 10913 states and 17111 transitions. Word has length 129 [2024-11-16 09:13:09,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:09,181 INFO L471 AbstractCegarLoop]: Abstraction has 10913 states and 17111 transitions. [2024-11-16 09:13:09,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:09,182 INFO L276 IsEmpty]: Start isEmpty. Operand 10913 states and 17111 transitions. [2024-11-16 09:13:09,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:13:09,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:09,190 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] [2024-11-16 09:13:09,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:13:09,190 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:09,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:09,191 INFO L85 PathProgramCache]: Analyzing trace with hash 222223067, now seen corresponding path program 1 times [2024-11-16 09:13:09,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:09,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070496145] [2024-11-16 09:13:09,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:09,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:09,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:09,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:09,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:09,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:09,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:09,325 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 09:13:09,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:09,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070496145] [2024-11-16 09:13:09,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070496145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:09,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:09,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:09,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128819117] [2024-11-16 09:13:09,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:09,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:09,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:09,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:09,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:09,327 INFO L87 Difference]: Start difference. First operand 10913 states and 17111 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:10,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:10,539 INFO L93 Difference]: Finished difference Result 22032 states and 34310 transitions. [2024-11-16 09:13:10,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:13:10,540 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 129 [2024-11-16 09:13:10,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:10,571 INFO L225 Difference]: With dead ends: 22032 [2024-11-16 09:13:10,572 INFO L226 Difference]: Without dead ends: 13257 [2024-11-16 09:13:10,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:13:10,593 INFO L432 NwaCegarLoop]: 4207 mSDtfsCounter, 4732 mSDsluCounter, 16636 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4747 SdHoareTripleChecker+Valid, 20843 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:10,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4747 Valid, 20843 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:13:10,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13257 states. [2024-11-16 09:13:10,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13257 to 10913. [2024-11-16 09:13:10,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10913 states, 10166 states have (on average 1.547412945111155) internal successors, (15731), 10201 states have internal predecessors, (15731), 521 states have call successors, (521), 193 states have call predecessors, (521), 224 states have return successors, (826), 550 states have call predecessors, (826), 519 states have call successors, (826) [2024-11-16 09:13:10,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10913 states to 10913 states and 17078 transitions. [2024-11-16 09:13:10,927 INFO L78 Accepts]: Start accepts. Automaton has 10913 states and 17078 transitions. Word has length 129 [2024-11-16 09:13:10,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:10,929 INFO L471 AbstractCegarLoop]: Abstraction has 10913 states and 17078 transitions. [2024-11-16 09:13:10,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:10,929 INFO L276 IsEmpty]: Start isEmpty. Operand 10913 states and 17078 transitions. [2024-11-16 09:13:10,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:13:10,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:10,936 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] [2024-11-16 09:13:10,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:13:10,936 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:10,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:10,937 INFO L85 PathProgramCache]: Analyzing trace with hash -711131270, now seen corresponding path program 1 times [2024-11-16 09:13:10,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:10,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197245560] [2024-11-16 09:13:10,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:10,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:10,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:11,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:11,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:11,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:11,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:11,078 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 09:13:11,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:11,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197245560] [2024-11-16 09:13:11,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197245560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:11,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:11,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:11,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48093192] [2024-11-16 09:13:11,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:11,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:11,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:11,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:11,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:11,081 INFO L87 Difference]: Start difference. First operand 10913 states and 17078 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:13,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:13,766 INFO L93 Difference]: Finished difference Result 35459 states and 54567 transitions. [2024-11-16 09:13:13,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:13:13,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 129 [2024-11-16 09:13:13,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:13,824 INFO L225 Difference]: With dead ends: 35459 [2024-11-16 09:13:13,824 INFO L226 Difference]: Without dead ends: 26686 [2024-11-16 09:13:13,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:13:13,841 INFO L432 NwaCegarLoop]: 4410 mSDtfsCounter, 5182 mSDsluCounter, 17446 mSDsCounter, 0 mSdLazyCounter, 2176 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5204 SdHoareTripleChecker+Valid, 21856 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:13,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5204 Valid, 21856 Invalid, 2245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2176 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:13:13,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26686 states. [2024-11-16 09:13:14,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26686 to 19713. [2024-11-16 09:13:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19713 states, 18262 states have (on average 1.5106779104150696) internal successors, (27588), 18329 states have internal predecessors, (27588), 1001 states have call successors, (1001), 385 states have call predecessors, (1001), 448 states have return successors, (1856), 1062 states have call predecessors, (1856), 999 states have call successors, (1856) [2024-11-16 09:13:14,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19713 states to 19713 states and 30445 transitions. [2024-11-16 09:13:14,496 INFO L78 Accepts]: Start accepts. Automaton has 19713 states and 30445 transitions. Word has length 129 [2024-11-16 09:13:14,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:14,497 INFO L471 AbstractCegarLoop]: Abstraction has 19713 states and 30445 transitions. [2024-11-16 09:13:14,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:14,497 INFO L276 IsEmpty]: Start isEmpty. Operand 19713 states and 30445 transitions. [2024-11-16 09:13:14,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:13:14,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:14,508 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] [2024-11-16 09:13:14,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:13:14,509 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:14,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:14,509 INFO L85 PathProgramCache]: Analyzing trace with hash 782781179, now seen corresponding path program 1 times [2024-11-16 09:13:14,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:14,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060576932] [2024-11-16 09:13:14,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:14,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:14,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:14,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:14,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:14,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:14,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:14,631 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 09:13:14,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:14,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060576932] [2024-11-16 09:13:14,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060576932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:14,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:14,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:14,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21648795] [2024-11-16 09:13:14,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:14,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:14,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:14,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:14,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:14,632 INFO L87 Difference]: Start difference. First operand 19713 states and 30445 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:16,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:16,117 INFO L93 Difference]: Finished difference Result 41680 states and 64664 transitions. [2024-11-16 09:13:16,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:13:16,117 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 129 [2024-11-16 09:13:16,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:16,183 INFO L225 Difference]: With dead ends: 41680 [2024-11-16 09:13:16,183 INFO L226 Difference]: Without dead ends: 24105 [2024-11-16 09:13:16,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:13:16,219 INFO L432 NwaCegarLoop]: 4207 mSDtfsCounter, 4838 mSDsluCounter, 12500 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4853 SdHoareTripleChecker+Valid, 16707 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:16,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4853 Valid, 16707 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:13:16,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24105 states. [2024-11-16 09:13:16,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24105 to 19713. [2024-11-16 09:13:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19713 states, 18262 states have (on average 1.5071186069433797) internal successors, (27523), 18329 states have internal predecessors, (27523), 1001 states have call successors, (1001), 385 states have call predecessors, (1001), 448 states have return successors, (1856), 1062 states have call predecessors, (1856), 999 states have call successors, (1856) [2024-11-16 09:13:17,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19713 states to 19713 states and 30380 transitions. [2024-11-16 09:13:17,012 INFO L78 Accepts]: Start accepts. Automaton has 19713 states and 30380 transitions. Word has length 129 [2024-11-16 09:13:17,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:17,012 INFO L471 AbstractCegarLoop]: Abstraction has 19713 states and 30380 transitions. [2024-11-16 09:13:17,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:17,013 INFO L276 IsEmpty]: Start isEmpty. Operand 19713 states and 30380 transitions. [2024-11-16 09:13:17,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:13:17,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:17,025 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] [2024-11-16 09:13:17,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:13:17,025 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:17,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:17,026 INFO L85 PathProgramCache]: Analyzing trace with hash -415954086, now seen corresponding path program 1 times [2024-11-16 09:13:17,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:17,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695072036] [2024-11-16 09:13:17,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:17,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:17,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:17,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:17,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:17,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:17,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:17,149 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 09:13:17,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:17,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695072036] [2024-11-16 09:13:17,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695072036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:17,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:17,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:17,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467205191] [2024-11-16 09:13:17,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:17,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:17,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:17,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:17,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:17,151 INFO L87 Difference]: Start difference. First operand 19713 states and 30380 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:18,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:18,975 INFO L93 Difference]: Finished difference Result 41616 states and 64342 transitions. [2024-11-16 09:13:18,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:13:18,976 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 129 [2024-11-16 09:13:18,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:19,030 INFO L225 Difference]: With dead ends: 41616 [2024-11-16 09:13:19,031 INFO L226 Difference]: Without dead ends: 24041 [2024-11-16 09:13:19,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:13:19,063 INFO L432 NwaCegarLoop]: 4207 mSDtfsCounter, 4836 mSDsluCounter, 12500 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4851 SdHoareTripleChecker+Valid, 16707 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:19,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4851 Valid, 16707 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:13:19,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24041 states. [2024-11-16 09:13:19,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24041 to 19713. [2024-11-16 09:13:19,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19713 states, 18262 states have (on average 1.5035593034716899) internal successors, (27458), 18329 states have internal predecessors, (27458), 1001 states have call successors, (1001), 385 states have call predecessors, (1001), 448 states have return successors, (1856), 1062 states have call predecessors, (1856), 999 states have call successors, (1856) [2024-11-16 09:13:19,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19713 states to 19713 states and 30315 transitions. [2024-11-16 09:13:19,865 INFO L78 Accepts]: Start accepts. Automaton has 19713 states and 30315 transitions. Word has length 129 [2024-11-16 09:13:19,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:19,865 INFO L471 AbstractCegarLoop]: Abstraction has 19713 states and 30315 transitions. [2024-11-16 09:13:19,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:19,865 INFO L276 IsEmpty]: Start isEmpty. Operand 19713 states and 30315 transitions. [2024-11-16 09:13:19,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:13:19,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:19,876 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] [2024-11-16 09:13:19,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:13:19,877 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:19,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:19,877 INFO L85 PathProgramCache]: Analyzing trace with hash 99566363, now seen corresponding path program 1 times [2024-11-16 09:13:19,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:19,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169750476] [2024-11-16 09:13:19,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:19,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:19,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:19,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:19,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:20,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:20,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:20,011 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 09:13:20,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:20,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169750476] [2024-11-16 09:13:20,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169750476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:20,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:20,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:20,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86899377] [2024-11-16 09:13:20,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:20,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:20,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:20,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:20,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:20,013 INFO L87 Difference]: Start difference. First operand 19713 states and 30315 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:23,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:23,081 INFO L93 Difference]: Finished difference Result 65667 states and 100718 transitions. [2024-11-16 09:13:23,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:13:23,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 129 [2024-11-16 09:13:23,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:23,200 INFO L225 Difference]: With dead ends: 65667 [2024-11-16 09:13:23,200 INFO L226 Difference]: Without dead ends: 48094 [2024-11-16 09:13:23,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:13:23,241 INFO L432 NwaCegarLoop]: 4388 mSDtfsCounter, 5062 mSDsluCounter, 17418 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5084 SdHoareTripleChecker+Valid, 21806 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:23,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5084 Valid, 21806 Invalid, 2111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:13:23,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48094 states. [2024-11-16 09:13:24,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48094 to 37409. [2024-11-16 09:13:24,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37409 states, 34582 states have (on average 1.480654675842924) internal successors, (51204), 34713 states have internal predecessors, (51204), 1929 states have call successors, (1929), 769 states have call predecessors, (1929), 896 states have return successors, (4370), 2054 states have call predecessors, (4370), 1927 states have call successors, (4370) [2024-11-16 09:13:24,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37409 states to 37409 states and 57503 transitions. [2024-11-16 09:13:24,785 INFO L78 Accepts]: Start accepts. Automaton has 37409 states and 57503 transitions. Word has length 129 [2024-11-16 09:13:24,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:24,786 INFO L471 AbstractCegarLoop]: Abstraction has 37409 states and 57503 transitions. [2024-11-16 09:13:24,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:24,787 INFO L276 IsEmpty]: Start isEmpty. Operand 37409 states and 57503 transitions. [2024-11-16 09:13:24,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:13:24,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:24,810 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] [2024-11-16 09:13:24,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:13:24,810 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:24,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:24,811 INFO L85 PathProgramCache]: Analyzing trace with hash -853635270, now seen corresponding path program 1 times [2024-11-16 09:13:24,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:24,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71136039] [2024-11-16 09:13:24,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:24,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:24,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:24,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:24,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:24,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:24,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:24,931 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 09:13:24,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:24,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71136039] [2024-11-16 09:13:24,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71136039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:24,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:24,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:24,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853953612] [2024-11-16 09:13:24,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:24,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:24,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:24,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:24,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:24,933 INFO L87 Difference]: Start difference. First operand 37409 states and 57503 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:27,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:27,937 INFO L93 Difference]: Finished difference Result 80720 states and 125646 transitions. [2024-11-16 09:13:27,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:13:27,937 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 129 [2024-11-16 09:13:27,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:28,038 INFO L225 Difference]: With dead ends: 80720 [2024-11-16 09:13:28,038 INFO L226 Difference]: Without dead ends: 45449 [2024-11-16 09:13:28,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:13:28,091 INFO L432 NwaCegarLoop]: 4207 mSDtfsCounter, 4728 mSDsluCounter, 16636 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4743 SdHoareTripleChecker+Valid, 20843 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:28,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4743 Valid, 20843 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:13:28,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45449 states. [2024-11-16 09:13:29,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45449 to 37409. [2024-11-16 09:13:29,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37409 states, 34582 states have (on average 1.4769244115435776) internal successors, (51075), 34713 states have internal predecessors, (51075), 1929 states have call successors, (1929), 769 states have call predecessors, (1929), 896 states have return successors, (4370), 2054 states have call predecessors, (4370), 1927 states have call successors, (4370) [2024-11-16 09:13:29,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37409 states to 37409 states and 57374 transitions. [2024-11-16 09:13:29,731 INFO L78 Accepts]: Start accepts. Automaton has 37409 states and 57374 transitions. Word has length 129 [2024-11-16 09:13:29,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:29,731 INFO L471 AbstractCegarLoop]: Abstraction has 37409 states and 57374 transitions. [2024-11-16 09:13:29,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:29,731 INFO L276 IsEmpty]: Start isEmpty. Operand 37409 states and 57374 transitions. [2024-11-16 09:13:29,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:13:29,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:29,751 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] [2024-11-16 09:13:29,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:13:29,751 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:29,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:29,752 INFO L85 PathProgramCache]: Analyzing trace with hash -53099717, now seen corresponding path program 1 times [2024-11-16 09:13:29,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:29,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393080812] [2024-11-16 09:13:29,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:29,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:29,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:29,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:29,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:29,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:29,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:29,870 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 09:13:29,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:29,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393080812] [2024-11-16 09:13:29,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393080812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:29,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:29,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:29,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874655870] [2024-11-16 09:13:29,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:29,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:29,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:29,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:29,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:29,872 INFO L87 Difference]: Start difference. First operand 37409 states and 57374 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:35,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:35,721 INFO L93 Difference]: Finished difference Result 125027 states and 193210 transitions. [2024-11-16 09:13:35,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:13:35,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 129 [2024-11-16 09:13:35,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:36,084 INFO L225 Difference]: With dead ends: 125027 [2024-11-16 09:13:36,084 INFO L226 Difference]: Without dead ends: 89758 [2024-11-16 09:13:36,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:13:36,146 INFO L432 NwaCegarLoop]: 4386 mSDtfsCounter, 4978 mSDsluCounter, 17418 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5000 SdHoareTripleChecker+Valid, 21804 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:36,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5000 Valid, 21804 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:13:36,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89758 states. [2024-11-16 09:13:39,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89758 to 72865. [2024-11-16 09:13:39,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72865 states, 67350 states have (on average 1.46445434298441) internal successors, (98631), 67609 states have internal predecessors, (98631), 3721 states have call successors, (3721), 1537 states have call predecessors, (3721), 1792 states have return successors, (10792), 3974 states have call predecessors, (10792), 3719 states have call successors, (10792) [2024-11-16 09:13:39,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72865 states to 72865 states and 113144 transitions. [2024-11-16 09:13:39,656 INFO L78 Accepts]: Start accepts. Automaton has 72865 states and 113144 transitions. Word has length 129 [2024-11-16 09:13:39,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:39,656 INFO L471 AbstractCegarLoop]: Abstraction has 72865 states and 113144 transitions. [2024-11-16 09:13:39,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 09:13:39,656 INFO L276 IsEmpty]: Start isEmpty. Operand 72865 states and 113144 transitions. [2024-11-16 09:13:39,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:13:39,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:39,703 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] [2024-11-16 09:13:39,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:13:39,703 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:39,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:39,703 INFO L85 PathProgramCache]: Analyzing trace with hash -581465318, now seen corresponding path program 1 times [2024-11-16 09:13:39,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:39,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585623320] [2024-11-16 09:13:39,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:39,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:39,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:39,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:39,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:39,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:39,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:39,838 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 09:13:39,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:39,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585623320] [2024-11-16 09:13:39,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585623320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:39,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:39,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:13:39,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527389374] [2024-11-16 09:13:39,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:39,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:13:39,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:39,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:13:39,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:13:39,840 INFO L87 Difference]: Start difference. First operand 72865 states and 113144 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 4 states have internal predecessors, (118), 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 09:13:48,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:48,733 INFO L93 Difference]: Finished difference Result 240884 states and 372571 transitions. [2024-11-16 09:13:48,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:13:48,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 4 states have internal predecessors, (118), 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 129 [2024-11-16 09:13:48,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:49,384 INFO L225 Difference]: With dead ends: 240884 [2024-11-16 09:13:49,384 INFO L226 Difference]: Without dead ends: 170159 [2024-11-16 09:13:49,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:13:49,552 INFO L432 NwaCegarLoop]: 4467 mSDtfsCounter, 5287 mSDsluCounter, 12921 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5322 SdHoareTripleChecker+Valid, 17388 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:49,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5322 Valid, 17388 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:13:49,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170159 states.