./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_label49+token_ring.11.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 5d96188e8fe998bfd3065ae27ea6234f9d513096a1254a43c8a37ba002e37de6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:30:28,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:30:28,352 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:30:28,358 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:30:28,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:30:28,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:30:28,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:30:28,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:30:28,392 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:30:28,393 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:30:28,394 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:30:28,395 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:30:28,395 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:30:28,396 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:30:28,398 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:30:28,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:30:28,399 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:30:28,399 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:30:28,399 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:30:28,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:30:28,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:30:28,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:30:28,401 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:30:28,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:30:28,402 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:30:28,402 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:30:28,403 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:30:28,403 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:30:28,403 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:30:28,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:30:28,404 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:30:28,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:30:28,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:30:28,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:30:28,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:30:28,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:30:28,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:30:28,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:30:28,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:30:28,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:30:28,407 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:30:28,408 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:30:28,409 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d96188e8fe998bfd3065ae27ea6234f9d513096a1254a43c8a37ba002e37de6 [2024-11-22 03:30:28,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:30:28,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:30:28,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:30:28,787 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:30:28,787 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:30:28,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-2.c [2024-11-22 03:30:30,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:30:30,913 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:30:30,914 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-2.c [2024-11-22 03:30:30,971 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33c56853d/420834bb146c490f9526a4addc34b6e7/FLAGd2cf27a8f [2024-11-22 03:30:30,986 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33c56853d/420834bb146c490f9526a4addc34b6e7 [2024-11-22 03:30:30,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:30:30,991 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:30:30,992 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:30:30,992 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:30:30,997 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:30:30,998 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:30:30" (1/1) ... [2024-11-22 03:30:30,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d195db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:30, skipping insertion in model container [2024-11-22 03:30:30,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:30:30" (1/1) ... [2024-11-22 03:30:31,183 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:30:32,946 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_label49+token_ring.11.cil-2.c[380593,380606] [2024-11-22 03:30:32,974 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_label49+token_ring.11.cil-2.c[383339,383352] [2024-11-22 03:30:33,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:30:33,309 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:30:34,132 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_label49+token_ring.11.cil-2.c[380593,380606] [2024-11-22 03:30:34,138 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_label49+token_ring.11.cil-2.c[383339,383352] [2024-11-22 03:30:34,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:30:34,232 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:30:34,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:34 WrapperNode [2024-11-22 03:30:34,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:30:34,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:30:34,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:30:34,234 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:30:34,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:34" (1/1) ... [2024-11-22 03:30:34,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:34" (1/1) ... [2024-11-22 03:30:34,853 INFO L138 Inliner]: procedures = 66, calls = 74, calls flagged for inlining = 44, calls inlined = 44, statements flattened = 13173 [2024-11-22 03:30:34,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:30:34,855 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:30:34,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:30:34,855 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:30:34,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:34" (1/1) ... [2024-11-22 03:30:34,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:34" (1/1) ... [2024-11-22 03:30:34,992 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:34" (1/1) ... [2024-11-22 03:30:35,187 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]. [2024-11-22 03:30:35,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:34" (1/1) ... [2024-11-22 03:30:35,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:34" (1/1) ... [2024-11-22 03:30:35,507 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:34" (1/1) ... [2024-11-22 03:30:35,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:34" (1/1) ... [2024-11-22 03:30:35,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:34" (1/1) ... [2024-11-22 03:30:35,658 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:34" (1/1) ... [2024-11-22 03:30:35,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:30:35,724 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:30:35,724 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:30:35,724 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:30:35,725 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:34" (1/1) ... [2024-11-22 03:30:35,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:30:35,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:30:35,761 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) [2024-11-22 03:30:35,765 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 [2024-11-22 03:30:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:30:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-22 03:30:35,817 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-22 03:30:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 03:30:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 03:30:35,819 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-22 03:30:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-22 03:30:35,819 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-22 03:30:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-22 03:30:35,819 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-22 03:30:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-22 03:30:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-22 03:30:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-22 03:30:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:30:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:30:35,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:30:35,971 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:30:35,974 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:30:44,371 INFO L? ?]: Removed 1749 outVars from TransFormulas that were not future-live. [2024-11-22 03:30:44,371 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:30:44,447 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:30:44,447 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-22 03:30:44,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:30:44 BoogieIcfgContainer [2024-11-22 03:30:44,448 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:30:44,450 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:30:44,450 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:30:44,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:30:44,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:30:30" (1/3) ... [2024-11-22 03:30:44,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623e27dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:30:44, skipping insertion in model container [2024-11-22 03:30:44,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:34" (2/3) ... [2024-11-22 03:30:44,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623e27dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:30:44, skipping insertion in model container [2024-11-22 03:30:44,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:30:44" (3/3) ... [2024-11-22 03:30:44,456 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.11.cil-2.c [2024-11-22 03:30:44,473 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:30:44,473 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 03:30:44,589 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:30:44,596 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;@2a37a417, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:30:44,596 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 03:30:44,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 2552 states, 2518 states have (on average 1.8403494837172358) internal successors, (4634), 2521 states have internal predecessors, (4634), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-22 03:30:44,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 03:30:44,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:44,629 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:44,629 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:44,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:44,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1612781040, now seen corresponding path program 1 times [2024-11-22 03:30:44,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:44,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410182904] [2024-11-22 03:30:44,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:44,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:45,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:45,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:45,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410182904] [2024-11-22 03:30:45,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410182904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:45,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:45,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:30:45,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746531239] [2024-11-22 03:30:45,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:45,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:30:45,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:45,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:30:45,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:30:45,182 INFO L87 Difference]: Start difference. First operand has 2552 states, 2518 states have (on average 1.8403494837172358) internal successors, (4634), 2521 states have internal predecessors, (4634), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:45,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:45,420 INFO L93 Difference]: Finished difference Result 5092 states and 9345 transitions. [2024-11-22 03:30:45,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:30:45,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-22 03:30:45,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:45,453 INFO L225 Difference]: With dead ends: 5092 [2024-11-22 03:30:45,454 INFO L226 Difference]: Without dead ends: 2485 [2024-11-22 03:30:45,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:30:45,471 INFO L432 NwaCegarLoop]: 4591 mSDtfsCounter, 558 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 8613 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:45,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 8613 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:30:45,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2024-11-22 03:30:45,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 2485. [2024-11-22 03:30:45,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 2452 states have (on average 1.8242251223491028) internal successors, (4473), 2454 states have internal predecessors, (4473), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-22 03:30:45,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 4523 transitions. [2024-11-22 03:30:45,629 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 4523 transitions. Word has length 167 [2024-11-22 03:30:45,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:45,632 INFO L471 AbstractCegarLoop]: Abstraction has 2485 states and 4523 transitions. [2024-11-22 03:30:45,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:45,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 4523 transitions. [2024-11-22 03:30:45,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 03:30:45,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:45,641 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:45,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 03:30:45,642 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:45,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:45,644 INFO L85 PathProgramCache]: Analyzing trace with hash 787852370, now seen corresponding path program 1 times [2024-11-22 03:30:45,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:45,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585222704] [2024-11-22 03:30:45,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:45,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:45,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:45,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:45,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585222704] [2024-11-22 03:30:45,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585222704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:45,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:45,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:30:45,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841132539] [2024-11-22 03:30:45,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:45,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:30:45,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:45,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:30:45,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:30:45,991 INFO L87 Difference]: Start difference. First operand 2485 states and 4523 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:46,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:46,833 INFO L93 Difference]: Finished difference Result 3219 states and 5679 transitions. [2024-11-22 03:30:46,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:30:46,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-22 03:30:46,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:46,854 INFO L225 Difference]: With dead ends: 3219 [2024-11-22 03:30:46,855 INFO L226 Difference]: Without dead ends: 2874 [2024-11-22 03:30:46,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:46,861 INFO L432 NwaCegarLoop]: 4446 mSDtfsCounter, 5035 mSDsluCounter, 9140 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5054 SdHoareTripleChecker+Valid, 13586 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:46,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5054 Valid, 13586 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 03:30:46,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2024-11-22 03:30:46,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2847. [2024-11-22 03:30:46,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2847 states, 2787 states have (on average 1.794043774668102) internal successors, (5000), 2790 states have internal predecessors, (5000), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2024-11-22 03:30:46,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2847 states to 2847 states and 5091 transitions. [2024-11-22 03:30:46,959 INFO L78 Accepts]: Start accepts. Automaton has 2847 states and 5091 transitions. Word has length 167 [2024-11-22 03:30:46,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:46,961 INFO L471 AbstractCegarLoop]: Abstraction has 2847 states and 5091 transitions. [2024-11-22 03:30:46,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:46,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2847 states and 5091 transitions. [2024-11-22 03:30:46,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 03:30:46,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:46,965 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:46,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 03:30:46,967 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:46,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:46,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1787438550, now seen corresponding path program 1 times [2024-11-22 03:30:46,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:46,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653220349] [2024-11-22 03:30:46,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:46,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:47,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:47,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:47,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653220349] [2024-11-22 03:30:47,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653220349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:47,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:47,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:47,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354799310] [2024-11-22 03:30:47,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:47,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:47,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:47,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:47,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:47,245 INFO L87 Difference]: Start difference. First operand 2847 states and 5091 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:48,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:48,179 INFO L93 Difference]: Finished difference Result 4014 states and 6948 transitions. [2024-11-22 03:30:48,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:48,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-22 03:30:48,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:48,202 INFO L225 Difference]: With dead ends: 4014 [2024-11-22 03:30:48,202 INFO L226 Difference]: Without dead ends: 3307 [2024-11-22 03:30:48,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:30:48,210 INFO L432 NwaCegarLoop]: 4705 mSDtfsCounter, 5043 mSDsluCounter, 14174 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 18879 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:48,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5062 Valid, 18879 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 03:30:48,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2024-11-22 03:30:48,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 3184. [2024-11-22 03:30:48,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 3097 states have (on average 1.7684856312560542) internal successors, (5477), 3101 states have internal predecessors, (5477), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (69), 66 states have call predecessors, (69), 65 states have call successors, (69) [2024-11-22 03:30:48,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 5611 transitions. [2024-11-22 03:30:48,330 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 5611 transitions. Word has length 167 [2024-11-22 03:30:48,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:48,331 INFO L471 AbstractCegarLoop]: Abstraction has 3184 states and 5611 transitions. [2024-11-22 03:30:48,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:48,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 5611 transitions. [2024-11-22 03:30:48,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 03:30:48,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:48,335 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:48,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 03:30:48,335 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:48,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:48,338 INFO L85 PathProgramCache]: Analyzing trace with hash 2125726100, now seen corresponding path program 1 times [2024-11-22 03:30:48,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:48,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237792386] [2024-11-22 03:30:48,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:48,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:48,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:48,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:48,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237792386] [2024-11-22 03:30:48,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237792386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:48,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:48,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:48,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306044238] [2024-11-22 03:30:48,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:48,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:48,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:48,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:48,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:48,710 INFO L87 Difference]: Start difference. First operand 3184 states and 5611 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:49,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:49,610 INFO L93 Difference]: Finished difference Result 5089 states and 8635 transitions. [2024-11-22 03:30:49,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:49,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-22 03:30:49,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:49,635 INFO L225 Difference]: With dead ends: 5089 [2024-11-22 03:30:49,636 INFO L226 Difference]: Without dead ends: 4045 [2024-11-22 03:30:49,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:30:49,643 INFO L432 NwaCegarLoop]: 4701 mSDtfsCounter, 5038 mSDsluCounter, 14162 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5057 SdHoareTripleChecker+Valid, 18863 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:49,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5057 Valid, 18863 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 03:30:49,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4045 states. [2024-11-22 03:30:49,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4045 to 3903. [2024-11-22 03:30:49,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3903 states, 3760 states have (on average 1.7324468085106384) internal successors, (6514), 3768 states have internal predecessors, (6514), 105 states have call successors, (105), 30 states have call predecessors, (105), 36 states have return successors, (121), 108 states have call predecessors, (121), 105 states have call successors, (121) [2024-11-22 03:30:49,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3903 states to 3903 states and 6740 transitions. [2024-11-22 03:30:49,783 INFO L78 Accepts]: Start accepts. Automaton has 3903 states and 6740 transitions. Word has length 167 [2024-11-22 03:30:49,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:49,784 INFO L471 AbstractCegarLoop]: Abstraction has 3903 states and 6740 transitions. [2024-11-22 03:30:49,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:49,784 INFO L276 IsEmpty]: Start isEmpty. Operand 3903 states and 6740 transitions. [2024-11-22 03:30:49,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 03:30:49,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:49,787 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:49,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 03:30:49,788 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:49,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:49,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1742686698, now seen corresponding path program 1 times [2024-11-22 03:30:49,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:49,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452898568] [2024-11-22 03:30:49,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:49,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:49,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:49,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:49,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452898568] [2024-11-22 03:30:49,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452898568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:49,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:49,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:49,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832866926] [2024-11-22 03:30:49,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:49,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:49,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:49,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:49,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:49,995 INFO L87 Difference]: Start difference. First operand 3903 states and 6740 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:50,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:50,916 INFO L93 Difference]: Finished difference Result 7414 states and 12362 transitions. [2024-11-22 03:30:50,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:50,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-22 03:30:50,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:50,945 INFO L225 Difference]: With dead ends: 7414 [2024-11-22 03:30:50,945 INFO L226 Difference]: Without dead ends: 5651 [2024-11-22 03:30:50,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:30:50,955 INFO L432 NwaCegarLoop]: 4698 mSDtfsCounter, 5033 mSDsluCounter, 14153 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5052 SdHoareTripleChecker+Valid, 18851 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:50,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5052 Valid, 18851 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 03:30:50,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2024-11-22 03:30:51,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 5470. [2024-11-22 03:30:51,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5470 states, 5209 states have (on average 1.694375119984642) internal successors, (8826), 5231 states have internal predecessors, (8826), 185 states have call successors, (185), 54 states have call predecessors, (185), 74 states have return successors, (249), 192 states have call predecessors, (249), 185 states have call successors, (249) [2024-11-22 03:30:51,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 9260 transitions. [2024-11-22 03:30:51,148 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 9260 transitions. Word has length 167 [2024-11-22 03:30:51,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:51,149 INFO L471 AbstractCegarLoop]: Abstraction has 5470 states and 9260 transitions. [2024-11-22 03:30:51,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:51,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 9260 transitions. [2024-11-22 03:30:51,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 03:30:51,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:51,153 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:51,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 03:30:51,154 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:51,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:51,154 INFO L85 PathProgramCache]: Analyzing trace with hash 2011851092, now seen corresponding path program 1 times [2024-11-22 03:30:51,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:51,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674218005] [2024-11-22 03:30:51,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:51,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:51,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:51,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:51,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674218005] [2024-11-22 03:30:51,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674218005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:51,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:51,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:51,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953263075] [2024-11-22 03:30:51,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:51,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:51,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:51,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:51,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:51,326 INFO L87 Difference]: Start difference. First operand 5470 states and 9260 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:52,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:52,448 INFO L93 Difference]: Finished difference Result 12561 states and 20852 transitions. [2024-11-22 03:30:52,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:52,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-22 03:30:52,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:52,502 INFO L225 Difference]: With dead ends: 12561 [2024-11-22 03:30:52,503 INFO L226 Difference]: Without dead ends: 9231 [2024-11-22 03:30:52,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:30:52,520 INFO L432 NwaCegarLoop]: 4695 mSDtfsCounter, 5028 mSDsluCounter, 14144 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5047 SdHoareTripleChecker+Valid, 18839 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:52,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5047 Valid, 18839 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 03:30:52,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9231 states. [2024-11-22 03:30:52,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9231 to 8973. [2024-11-22 03:30:52,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8973 states, 8458 states have (on average 1.6706077086781745) internal successors, (14130), 8526 states have internal predecessors, (14130), 345 states have call successors, (345), 102 states have call predecessors, (345), 168 states have return successors, (601), 360 states have call predecessors, (601), 345 states have call successors, (601) [2024-11-22 03:30:52,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8973 states to 8973 states and 15076 transitions. [2024-11-22 03:30:52,867 INFO L78 Accepts]: Start accepts. Automaton has 8973 states and 15076 transitions. Word has length 167 [2024-11-22 03:30:52,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:52,868 INFO L471 AbstractCegarLoop]: Abstraction has 8973 states and 15076 transitions. [2024-11-22 03:30:52,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:52,869 INFO L276 IsEmpty]: Start isEmpty. Operand 8973 states and 15076 transitions. [2024-11-22 03:30:52,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 03:30:52,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:52,875 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:52,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 03:30:52,875 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:52,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:52,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1855870550, now seen corresponding path program 1 times [2024-11-22 03:30:52,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:52,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060933667] [2024-11-22 03:30:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:52,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:53,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:53,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060933667] [2024-11-22 03:30:53,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060933667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:53,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:53,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:53,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046519405] [2024-11-22 03:30:53,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:53,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:53,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:53,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:53,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:53,073 INFO L87 Difference]: Start difference. First operand 8973 states and 15076 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:54,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:54,326 INFO L93 Difference]: Finished difference Result 24272 states and 40918 transitions. [2024-11-22 03:30:54,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:54,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-22 03:30:54,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:54,418 INFO L225 Difference]: With dead ends: 24272 [2024-11-22 03:30:54,419 INFO L226 Difference]: Without dead ends: 17439 [2024-11-22 03:30:54,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:30:54,452 INFO L432 NwaCegarLoop]: 4692 mSDtfsCounter, 5023 mSDsluCounter, 14135 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5042 SdHoareTripleChecker+Valid, 18827 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:54,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5042 Valid, 18827 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 03:30:54,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17439 states. [2024-11-22 03:30:55,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17439 to 17032. [2024-11-22 03:30:55,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17032 states, 15955 states have (on average 1.6718270134753996) internal successors, (26674), 16169 states have internal predecessors, (26674), 665 states have call successors, (665), 198 states have call predecessors, (665), 410 states have return successors, (1689), 696 states have call predecessors, (1689), 665 states have call successors, (1689) [2024-11-22 03:30:55,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17032 states to 17032 states and 29028 transitions. [2024-11-22 03:30:55,272 INFO L78 Accepts]: Start accepts. Automaton has 17032 states and 29028 transitions. Word has length 167 [2024-11-22 03:30:55,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:55,273 INFO L471 AbstractCegarLoop]: Abstraction has 17032 states and 29028 transitions. [2024-11-22 03:30:55,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:55,273 INFO L276 IsEmpty]: Start isEmpty. Operand 17032 states and 29028 transitions. [2024-11-22 03:30:55,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 03:30:55,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:55,284 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:55,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 03:30:55,285 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:55,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:55,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2028486380, now seen corresponding path program 1 times [2024-11-22 03:30:55,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:55,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703605445] [2024-11-22 03:30:55,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:55,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:55,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:55,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:55,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703605445] [2024-11-22 03:30:55,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703605445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:55,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:55,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:30:55,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399922755] [2024-11-22 03:30:55,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:55,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:30:55,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:55,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:30:55,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:30:55,473 INFO L87 Difference]: Start difference. First operand 17032 states and 29028 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:56,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:56,571 INFO L93 Difference]: Finished difference Result 36334 states and 63243 transitions. [2024-11-22 03:30:56,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 03:30:56,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-22 03:30:56,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:56,668 INFO L225 Difference]: With dead ends: 36334 [2024-11-22 03:30:56,668 INFO L226 Difference]: Without dead ends: 21442 [2024-11-22 03:30:56,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:56,727 INFO L432 NwaCegarLoop]: 4376 mSDtfsCounter, 4717 mSDsluCounter, 8607 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4736 SdHoareTripleChecker+Valid, 12983 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:56,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4736 Valid, 12983 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:30:56,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21442 states. [2024-11-22 03:30:57,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21442 to 17032. [2024-11-22 03:30:57,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17032 states, 15955 states have (on average 1.6697586963334379) internal successors, (26641), 16169 states have internal predecessors, (26641), 665 states have call successors, (665), 198 states have call predecessors, (665), 410 states have return successors, (1689), 696 states have call predecessors, (1689), 665 states have call successors, (1689) [2024-11-22 03:30:57,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17032 states to 17032 states and 28995 transitions. [2024-11-22 03:30:57,535 INFO L78 Accepts]: Start accepts. Automaton has 17032 states and 28995 transitions. Word has length 167 [2024-11-22 03:30:57,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:57,536 INFO L471 AbstractCegarLoop]: Abstraction has 17032 states and 28995 transitions. [2024-11-22 03:30:57,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:57,536 INFO L276 IsEmpty]: Start isEmpty. Operand 17032 states and 28995 transitions. [2024-11-22 03:30:57,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 03:30:57,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:57,546 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:57,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 03:30:57,546 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:57,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:57,547 INFO L85 PathProgramCache]: Analyzing trace with hash 130597714, now seen corresponding path program 1 times [2024-11-22 03:30:57,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:57,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066247822] [2024-11-22 03:30:57,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:57,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:57,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:57,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:57,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066247822] [2024-11-22 03:30:57,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066247822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:57,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:57,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:57,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459364296] [2024-11-22 03:30:57,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:57,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:57,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:57,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:57,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:57,722 INFO L87 Difference]: Start difference. First operand 17032 states and 28995 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:59,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:59,418 INFO L93 Difference]: Finished difference Result 51175 states and 89161 transitions. [2024-11-22 03:30:59,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:59,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-22 03:30:59,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:59,759 INFO L225 Difference]: With dead ends: 51175 [2024-11-22 03:30:59,760 INFO L226 Difference]: Without dead ends: 36283 [2024-11-22 03:30:59,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:30:59,804 INFO L432 NwaCegarLoop]: 4680 mSDtfsCounter, 5007 mSDsluCounter, 14102 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5026 SdHoareTripleChecker+Valid, 18782 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:59,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5026 Valid, 18782 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 03:30:59,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36283 states. [2024-11-22 03:31:01,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36283 to 35661. [2024-11-22 03:31:01,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35661 states, 33298 states have (on average 1.6882995975734278) internal successors, (56217), 33966 states have internal predecessors, (56217), 1305 states have call successors, (1305), 390 states have call predecessors, (1305), 1056 states have return successors, (5401), 1368 states have call predecessors, (5401), 1305 states have call successors, (5401) [2024-11-22 03:31:01,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35661 states to 35661 states and 62923 transitions. [2024-11-22 03:31:01,462 INFO L78 Accepts]: Start accepts. Automaton has 35661 states and 62923 transitions. Word has length 167 [2024-11-22 03:31:01,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:31:01,464 INFO L471 AbstractCegarLoop]: Abstraction has 35661 states and 62923 transitions. [2024-11-22 03:31:01,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:31:01,465 INFO L276 IsEmpty]: Start isEmpty. Operand 35661 states and 62923 transitions. [2024-11-22 03:31:01,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 03:31:01,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:31:01,479 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:31:01,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 03:31:01,480 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:31:01,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:31:01,480 INFO L85 PathProgramCache]: Analyzing trace with hash 200245588, now seen corresponding path program 1 times [2024-11-22 03:31:01,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:31:01,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214795737] [2024-11-22 03:31:01,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:31:01,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:31:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:31:01,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:31:01,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:31:01,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214795737] [2024-11-22 03:31:01,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214795737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:31:01,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:31:01,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:31:01,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827054381] [2024-11-22 03:31:01,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:31:01,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:31:01,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:31:01,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:31:01,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:31:01,637 INFO L87 Difference]: Start difference. First operand 35661 states and 62923 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:31:04,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:31:04,816 INFO L93 Difference]: Finished difference Result 115072 states and 211619 transitions. [2024-11-22 03:31:04,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:31:04,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-22 03:31:04,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:31:05,308 INFO L225 Difference]: With dead ends: 115072 [2024-11-22 03:31:05,308 INFO L226 Difference]: Without dead ends: 81551 [2024-11-22 03:31:05,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:31:05,405 INFO L432 NwaCegarLoop]: 4677 mSDtfsCounter, 5002 mSDsluCounter, 14093 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5021 SdHoareTripleChecker+Valid, 18770 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 03:31:05,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5021 Valid, 18770 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 03:31:05,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81551 states. [2024-11-22 03:31:08,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81551 to 80452. [2024-11-22 03:31:08,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80452 states, 75031 states have (on average 1.718556330050246) internal successors, (128945), 77093 states have internal predecessors, (128945), 2585 states have call successors, (2585), 774 states have call predecessors, (2585), 2834 states have return successors, (18969), 2712 states have call predecessors, (18969), 2585 states have call successors, (18969) [2024-11-22 03:31:09,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80452 states to 80452 states and 150499 transitions. [2024-11-22 03:31:09,536 INFO L78 Accepts]: Start accepts. Automaton has 80452 states and 150499 transitions. Word has length 167 [2024-11-22 03:31:09,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:31:09,537 INFO L471 AbstractCegarLoop]: Abstraction has 80452 states and 150499 transitions. [2024-11-22 03:31:09,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:31:09,538 INFO L276 IsEmpty]: Start isEmpty. Operand 80452 states and 150499 transitions. [2024-11-22 03:31:09,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 03:31:09,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:31:09,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:31:09,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 03:31:09,564 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:31:09,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:31:09,565 INFO L85 PathProgramCache]: Analyzing trace with hash 618134290, now seen corresponding path program 1 times [2024-11-22 03:31:09,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:31:09,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999274935] [2024-11-22 03:31:09,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:31:09,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:31:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:31:09,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:31:09,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:31:09,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999274935] [2024-11-22 03:31:09,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999274935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:31:09,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:31:09,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:31:09,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482762813] [2024-11-22 03:31:09,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:31:09,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:31:09,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:31:09,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:31:09,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:31:09,713 INFO L87 Difference]: Start difference. First operand 80452 states and 150499 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:31:15,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:31:15,568 INFO L93 Difference]: Finished difference Result 271479 states and 538553 transitions. [2024-11-22 03:31:15,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:31:15,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-22 03:31:15,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:31:17,035 INFO L225 Difference]: With dead ends: 271479 [2024-11-22 03:31:17,035 INFO L226 Difference]: Without dead ends: 193167 [2024-11-22 03:31:17,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:31:17,266 INFO L432 NwaCegarLoop]: 4674 mSDtfsCounter, 4997 mSDsluCounter, 14084 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5016 SdHoareTripleChecker+Valid, 18758 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:31:17,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5016 Valid, 18758 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:31:17,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193167 states. [2024-11-22 03:31:25,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193167 to 191175. [2024-11-22 03:31:25,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191175 states, 178180 states have (on average 1.75241328993153) internal successors, (312245), 184488 states have internal predecessors, (312245), 5145 states have call successors, (5145), 1542 states have call predecessors, (5145), 7848 states have return successors, (70681), 5400 states have call predecessors, (70681), 5145 states have call successors, (70681) [2024-11-22 03:31:27,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191175 states to 191175 states and 388071 transitions. [2024-11-22 03:31:27,530 INFO L78 Accepts]: Start accepts. Automaton has 191175 states and 388071 transitions. Word has length 167 [2024-11-22 03:31:27,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:31:27,531 INFO L471 AbstractCegarLoop]: Abstraction has 191175 states and 388071 transitions. [2024-11-22 03:31:27,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:31:27,532 INFO L276 IsEmpty]: Start isEmpty. Operand 191175 states and 388071 transitions. [2024-11-22 03:31:27,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 03:31:27,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:31:27,589 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:31:27,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 03:31:27,589 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:31:27,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:31:27,590 INFO L85 PathProgramCache]: Analyzing trace with hash 2017087892, now seen corresponding path program 1 times [2024-11-22 03:31:27,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:31:27,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152315675] [2024-11-22 03:31:27,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:31:27,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:31:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:31:27,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:31:27,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:31:27,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152315675] [2024-11-22 03:31:27,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152315675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:31:27,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:31:27,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:31:27,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808959612] [2024-11-22 03:31:27,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:31:27,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:31:27,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:31:27,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:31:27,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:31:27,720 INFO L87 Difference]: Start difference. First operand 191175 states and 388071 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)