./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.04.cil-1.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_label42+token_ring.04.cil-1.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 9e8eec1743df688e821561fda517f1945d9b8e3e5029879578d4191f60280f1b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:18:42,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:18:42,846 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:18:42,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:18:42,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:18:42,889 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:18:42,890 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:18:42,890 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:18:42,891 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:18:42,892 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:18:42,892 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:18:42,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:18:42,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:18:42,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:18:42,896 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:18:42,897 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:18:42,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:18:42,897 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:18:42,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:18:42,898 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:18:42,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:18:42,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:18:42,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:18:42,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:18:42,903 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:18:42,904 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:18:42,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:18:42,904 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:18:42,904 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:18:42,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:18:42,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:18:42,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:18:42,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:18:42,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:18:42,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:18:42,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:18:42,907 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:18:42,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:18:42,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:18:42,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:18:42,908 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:18:42,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:18:42,910 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e8eec1743df688e821561fda517f1945d9b8e3e5029879578d4191f60280f1b [2024-11-22 03:18:43,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:18:43,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:18:43,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:18:43,213 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:18:43,214 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:18:43,215 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.04.cil-1.c [2024-11-22 03:18:44,740 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:18:45,368 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:18:45,369 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.04.cil-1.c [2024-11-22 03:18:45,437 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7915eb971/36698481bf3b4eceabf4e1b4a07026c1/FLAG7a049327c [2024-11-22 03:18:45,455 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7915eb971/36698481bf3b4eceabf4e1b4a07026c1 [2024-11-22 03:18:45,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:18:45,459 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:18:45,462 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:18:45,462 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:18:45,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:18:45,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:18:45" (1/1) ... [2024-11-22 03:18:45,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64711974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:45, skipping insertion in model container [2024-11-22 03:18:45,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:18:45" (1/1) ... [2024-11-22 03:18:45,755 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:18:47,508 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_label42+token_ring.04.cil-1.c[378560,378573] [2024-11-22 03:18:47,544 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_label42+token_ring.04.cil-1.c[383339,383352] [2024-11-22 03:18:47,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:18:47,846 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:18:48,643 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_label42+token_ring.04.cil-1.c[378560,378573] [2024-11-22 03:18:48,655 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_label42+token_ring.04.cil-1.c[383339,383352] [2024-11-22 03:18:48,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:18:48,735 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:18:48,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:48 WrapperNode [2024-11-22 03:18:48,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:18:48,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:18:48,738 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:18:48,738 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:18:48,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:48" (1/1) ... [2024-11-22 03:18:48,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:48" (1/1) ... [2024-11-22 03:18:49,206 INFO L138 Inliner]: procedures = 52, calls = 53, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 12753 [2024-11-22 03:18:49,207 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:18:49,208 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:18:49,208 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:18:49,208 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:18:49,220 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:48" (1/1) ... [2024-11-22 03:18:49,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:48" (1/1) ... [2024-11-22 03:18:49,290 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:48" (1/1) ... [2024-11-22 03:18:49,504 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 03:18:49,504 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:48" (1/1) ... [2024-11-22 03:18:49,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:48" (1/1) ... [2024-11-22 03:18:49,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:48" (1/1) ... [2024-11-22 03:18:49,783 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:48" (1/1) ... [2024-11-22 03:18:49,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:48" (1/1) ... [2024-11-22 03:18:49,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:48" (1/1) ... [2024-11-22 03:18:49,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:18:49,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:18:49,937 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:18:49,937 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:18:49,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:48" (1/1) ... [2024-11-22 03:18:49,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:18:49,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:18:49,974 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 03:18:49,977 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 03:18:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:18:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-22 03:18:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-22 03:18:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 03:18:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 03:18:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-22 03:18:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-22 03:18:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-22 03:18:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-22 03:18:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-22 03:18:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-22 03:18:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-22 03:18:50,029 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-22 03:18:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:18:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:18:50,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:18:50,158 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:18:50,160 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:18:58,389 INFO L? ?]: Removed 1707 outVars from TransFormulas that were not future-live. [2024-11-22 03:18:58,390 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:18:58,466 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:18:58,466 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-22 03:18:58,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:18:58 BoogieIcfgContainer [2024-11-22 03:18:58,467 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:18:58,471 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:18:58,471 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:18:58,474 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:18:58,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:18:45" (1/3) ... [2024-11-22 03:18:58,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b101493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:18:58, skipping insertion in model container [2024-11-22 03:18:58,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:48" (2/3) ... [2024-11-22 03:18:58,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b101493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:18:58, skipping insertion in model container [2024-11-22 03:18:58,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:18:58" (3/3) ... [2024-11-22 03:18:58,480 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.04.cil-1.c [2024-11-22 03:18:58,499 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:18:58,499 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 03:18:58,636 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:18:58,646 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;@e6812d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:18:58,647 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 03:18:58,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 2370 states, 2343 states have (on average 1.8523260776781905) internal successors, (4340), 2346 states have internal predecessors, (4340), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 03:18:58,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:18:58,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:18:58,683 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] [2024-11-22 03:18:58,684 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:18:58,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:18:58,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1995785756, now seen corresponding path program 1 times [2024-11-22 03:18:58,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:18:58,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680903491] [2024-11-22 03:18:58,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:18:58,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:18:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:18:59,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:18:59,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:18:59,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680903491] [2024-11-22 03:18:59,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680903491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:18:59,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:18:59,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:18:59,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130478925] [2024-11-22 03:18:59,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:18:59,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:18:59,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:18:59,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:18:59,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:18:59,105 INFO L87 Difference]: Start difference. First operand has 2370 states, 2343 states have (on average 1.8523260776781905) internal successors, (4340), 2346 states have internal predecessors, (4340), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 03:18:59,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:18:59,418 INFO L93 Difference]: Finished difference Result 4734 states and 8741 transitions. [2024-11-22 03:18:59,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:18:59,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 90 [2024-11-22 03:18:59,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:18:59,456 INFO L225 Difference]: With dead ends: 4734 [2024-11-22 03:18:59,456 INFO L226 Difference]: Without dead ends: 2303 [2024-11-22 03:18:59,464 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 03:18:59,468 INFO L432 NwaCegarLoop]: 4297 mSDtfsCounter, 270 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 8319 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 03:18:59,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 8319 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:18:59,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2303 states. [2024-11-22 03:18:59,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2303 to 2303. [2024-11-22 03:18:59,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2303 states, 2277 states have (on average 1.8414580588493632) internal successors, (4193), 2279 states have internal predecessors, (4193), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 03:18:59,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 4229 transitions. [2024-11-22 03:18:59,644 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 4229 transitions. Word has length 90 [2024-11-22 03:18:59,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:18:59,645 INFO L471 AbstractCegarLoop]: Abstraction has 2303 states and 4229 transitions. [2024-11-22 03:18:59,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 03:18:59,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 4229 transitions. [2024-11-22 03:18:59,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:18:59,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:18:59,656 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] [2024-11-22 03:18:59,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 03:18:59,657 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:18:59,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:18:59,657 INFO L85 PathProgramCache]: Analyzing trace with hash -937947678, now seen corresponding path program 1 times [2024-11-22 03:18:59,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:18:59,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634086756] [2024-11-22 03:18:59,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:18:59,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:18:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:18:59,941 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 03:18:59,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:18:59,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634086756] [2024-11-22 03:18:59,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634086756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:18:59,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:18:59,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:18:59,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948297105] [2024-11-22 03:18:59,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:18:59,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:18:59,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:18:59,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:18:59,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:18:59,948 INFO L87 Difference]: Start difference. First operand 2303 states and 4229 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 03:19:00,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:00,390 INFO L93 Difference]: Finished difference Result 2659 states and 4769 transitions. [2024-11-22 03:19:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:19:00,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 90 [2024-11-22 03:19:00,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:00,407 INFO L225 Difference]: With dead ends: 2659 [2024-11-22 03:19:00,408 INFO L226 Difference]: Without dead ends: 2489 [2024-11-22 03:19:00,411 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 03:19:00,413 INFO L432 NwaCegarLoop]: 4168 mSDtfsCounter, 4433 mSDsluCounter, 8437 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4445 SdHoareTripleChecker+Valid, 12605 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:00,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4445 Valid, 12605 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 03:19:00,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2489 states. [2024-11-22 03:19:00,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2489 to 2476. [2024-11-22 03:19:00,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2430 states have (on average 1.8213991769547324) internal successors, (4426), 2433 states have internal predecessors, (4426), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-22 03:19:00,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 4489 transitions. [2024-11-22 03:19:00,490 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 4489 transitions. Word has length 90 [2024-11-22 03:19:00,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:00,491 INFO L471 AbstractCegarLoop]: Abstraction has 2476 states and 4489 transitions. [2024-11-22 03:19:00,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 03:19:00,491 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 4489 transitions. [2024-11-22 03:19:00,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:19:00,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:00,494 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] [2024-11-22 03:19:00,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 03:19:00,495 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:00,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:00,496 INFO L85 PathProgramCache]: Analyzing trace with hash -2112607130, now seen corresponding path program 1 times [2024-11-22 03:19:00,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:00,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941741513] [2024-11-22 03:19:00,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:00,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:00,720 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 03:19:00,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:00,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941741513] [2024-11-22 03:19:00,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941741513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:00,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:00,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:00,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055944036] [2024-11-22 03:19:00,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:00,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:00,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:00,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:00,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:00,727 INFO L87 Difference]: Start difference. First operand 2476 states and 4489 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:01,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:01,326 INFO L93 Difference]: Finished difference Result 3034 states and 5338 transitions. [2024-11-22 03:19:01,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:01,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 03:19:01,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:01,343 INFO L225 Difference]: With dead ends: 3034 [2024-11-22 03:19:01,343 INFO L226 Difference]: Without dead ends: 2691 [2024-11-22 03:19:01,347 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 03:19:01,349 INFO L432 NwaCegarLoop]: 4306 mSDtfsCounter, 4427 mSDsluCounter, 12907 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4439 SdHoareTripleChecker+Valid, 17213 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:01,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4439 Valid, 17213 Invalid, 578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:19:01,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2024-11-22 03:19:01,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2638. [2024-11-22 03:19:01,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2638 states, 2572 states have (on average 1.802877138413686) internal successors, (4637), 2576 states have internal predecessors, (4637), 44 states have call successors, (44), 18 states have call predecessors, (44), 20 states have return successors, (48), 45 states have call predecessors, (48), 44 states have call successors, (48) [2024-11-22 03:19:01,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2638 states to 2638 states and 4729 transitions. [2024-11-22 03:19:01,442 INFO L78 Accepts]: Start accepts. Automaton has 2638 states and 4729 transitions. Word has length 90 [2024-11-22 03:19:01,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:01,445 INFO L471 AbstractCegarLoop]: Abstraction has 2638 states and 4729 transitions. [2024-11-22 03:19:01,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:01,445 INFO L276 IsEmpty]: Start isEmpty. Operand 2638 states and 4729 transitions. [2024-11-22 03:19:01,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:19:01,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:01,447 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:19:01,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 03:19:01,448 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:01,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:01,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1225384284, now seen corresponding path program 1 times [2024-11-22 03:19:01,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:01,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077014870] [2024-11-22 03:19:01,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:01,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:01,644 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 03:19:01,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:01,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077014870] [2024-11-22 03:19:01,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077014870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:01,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:01,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:01,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539548624] [2024-11-22 03:19:01,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:01,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:01,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:01,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:01,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:01,699 INFO L87 Difference]: Start difference. First operand 2638 states and 4729 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:02,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:02,210 INFO L93 Difference]: Finished difference Result 3542 states and 6101 transitions. [2024-11-22 03:19:02,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:02,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 03:19:02,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:02,226 INFO L225 Difference]: With dead ends: 3542 [2024-11-22 03:19:02,227 INFO L226 Difference]: Without dead ends: 3037 [2024-11-22 03:19:02,230 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 03:19:02,231 INFO L432 NwaCegarLoop]: 4178 mSDtfsCounter, 4438 mSDsluCounter, 12608 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4450 SdHoareTripleChecker+Valid, 16786 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:02,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4450 Valid, 16786 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:19:02,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2024-11-22 03:19:02,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 2979. [2024-11-22 03:19:02,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2871 states have (on average 1.7715081853012888) internal successors, (5086), 2879 states have internal predecessors, (5086), 70 states have call successors, (70), 30 states have call predecessors, (70), 36 states have return successors, (86), 73 states have call predecessors, (86), 70 states have call successors, (86) [2024-11-22 03:19:02,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 5242 transitions. [2024-11-22 03:19:02,330 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 5242 transitions. Word has length 90 [2024-11-22 03:19:02,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:02,330 INFO L471 AbstractCegarLoop]: Abstraction has 2979 states and 5242 transitions. [2024-11-22 03:19:02,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:02,331 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 5242 transitions. [2024-11-22 03:19:02,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:19:02,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:02,333 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] [2024-11-22 03:19:02,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 03:19:02,333 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:02,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:02,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1158540454, now seen corresponding path program 1 times [2024-11-22 03:19:02,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:02,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128925667] [2024-11-22 03:19:02,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:02,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:02,474 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 03:19:02,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:02,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128925667] [2024-11-22 03:19:02,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128925667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:02,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:02,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:02,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486664314] [2024-11-22 03:19:02,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:02,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:02,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:02,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:02,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:02,478 INFO L87 Difference]: Start difference. First operand 2979 states and 5242 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:03,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:03,041 INFO L93 Difference]: Finished difference Result 4621 states and 7756 transitions. [2024-11-22 03:19:03,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:03,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 03:19:03,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:03,061 INFO L225 Difference]: With dead ends: 4621 [2024-11-22 03:19:03,062 INFO L226 Difference]: Without dead ends: 3775 [2024-11-22 03:19:03,067 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 03:19:03,068 INFO L432 NwaCegarLoop]: 4299 mSDtfsCounter, 4417 mSDsluCounter, 12886 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4429 SdHoareTripleChecker+Valid, 17185 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:03,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4429 Valid, 17185 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:19:03,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3775 states. [2024-11-22 03:19:03,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3775 to 3706. [2024-11-22 03:19:03,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3706 states, 3508 states have (on average 1.725769669327252) internal successors, (6054), 3530 states have internal predecessors, (6054), 122 states have call successors, (122), 54 states have call predecessors, (122), 74 states have return successors, (186), 129 states have call predecessors, (186), 122 states have call successors, (186) [2024-11-22 03:19:03,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 6362 transitions. [2024-11-22 03:19:03,204 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 6362 transitions. Word has length 90 [2024-11-22 03:19:03,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:03,205 INFO L471 AbstractCegarLoop]: Abstraction has 3706 states and 6362 transitions. [2024-11-22 03:19:03,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:03,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 6362 transitions. [2024-11-22 03:19:03,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:19:03,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:03,208 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] [2024-11-22 03:19:03,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 03:19:03,208 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:03,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:03,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1235441252, now seen corresponding path program 1 times [2024-11-22 03:19:03,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:03,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575697185] [2024-11-22 03:19:03,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:03,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:03,346 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 03:19:03,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:03,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575697185] [2024-11-22 03:19:03,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575697185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:03,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:03,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:03,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437955191] [2024-11-22 03:19:03,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:03,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:03,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:03,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:03,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:03,350 INFO L87 Difference]: Start difference. First operand 3706 states and 6362 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:04,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:04,087 INFO L93 Difference]: Finished difference Result 7166 states and 11747 transitions. [2024-11-22 03:19:04,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:04,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 03:19:04,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:04,121 INFO L225 Difference]: With dead ends: 7166 [2024-11-22 03:19:04,121 INFO L226 Difference]: Without dead ends: 5593 [2024-11-22 03:19:04,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:04,133 INFO L432 NwaCegarLoop]: 4290 mSDtfsCounter, 4543 mSDsluCounter, 12856 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4560 SdHoareTripleChecker+Valid, 17146 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:04,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4560 Valid, 17146 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:19:04,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5593 states. [2024-11-22 03:19:04,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5593 to 5226. [2024-11-22 03:19:04,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5226 states, 4838 states have (on average 1.673418768085986) internal successors, (8096), 4906 states have internal predecessors, (8096), 218 states have call successors, (218), 102 states have call predecessors, (218), 168 states have return successors, (474), 233 states have call predecessors, (474), 218 states have call successors, (474) [2024-11-22 03:19:04,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5226 states to 5226 states and 8788 transitions. [2024-11-22 03:19:04,453 INFO L78 Accepts]: Start accepts. Automaton has 5226 states and 8788 transitions. Word has length 90 [2024-11-22 03:19:04,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:04,453 INFO L471 AbstractCegarLoop]: Abstraction has 5226 states and 8788 transitions. [2024-11-22 03:19:04,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:04,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5226 states and 8788 transitions. [2024-11-22 03:19:04,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:19:04,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:04,458 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] [2024-11-22 03:19:04,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 03:19:04,458 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:04,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:04,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1151068254, now seen corresponding path program 1 times [2024-11-22 03:19:04,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:04,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847450360] [2024-11-22 03:19:04,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:04,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:04,584 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 03:19:04,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:04,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847450360] [2024-11-22 03:19:04,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847450360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:04,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:04,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:04,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980711972] [2024-11-22 03:19:04,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:04,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:04,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:04,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:04,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:04,587 INFO L87 Difference]: Start difference. First operand 5226 states and 8788 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:05,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:05,346 INFO L93 Difference]: Finished difference Result 12134 states and 19991 transitions. [2024-11-22 03:19:05,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:05,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 03:19:05,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:05,403 INFO L225 Difference]: With dead ends: 12134 [2024-11-22 03:19:05,403 INFO L226 Difference]: Without dead ends: 9041 [2024-11-22 03:19:05,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:05,422 INFO L432 NwaCegarLoop]: 4286 mSDtfsCounter, 4436 mSDsluCounter, 12844 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4447 SdHoareTripleChecker+Valid, 17130 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:05,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4447 Valid, 17130 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:19:05,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9041 states. [2024-11-22 03:19:05,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9041 to 8405. [2024-11-22 03:19:05,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8405 states, 7591 states have (on average 1.627190093531814) internal successors, (12352), 7805 states have internal predecessors, (12352), 402 states have call successors, (402), 198 states have call predecessors, (402), 410 states have return successors, (1426), 433 states have call predecessors, (1426), 402 states have call successors, (1426) [2024-11-22 03:19:05,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8405 states to 8405 states and 14180 transitions. [2024-11-22 03:19:05,896 INFO L78 Accepts]: Start accepts. Automaton has 8405 states and 14180 transitions. Word has length 90 [2024-11-22 03:19:05,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:05,897 INFO L471 AbstractCegarLoop]: Abstraction has 8405 states and 14180 transitions. [2024-11-22 03:19:05,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:05,897 INFO L276 IsEmpty]: Start isEmpty. Operand 8405 states and 14180 transitions. [2024-11-22 03:19:05,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:19:05,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:05,904 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] [2024-11-22 03:19:05,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 03:19:05,904 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:05,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:05,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1643694428, now seen corresponding path program 1 times [2024-11-22 03:19:05,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:05,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777450779] [2024-11-22 03:19:05,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:05,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:06,018 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 03:19:06,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:06,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777450779] [2024-11-22 03:19:06,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777450779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:06,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:06,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:06,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803810272] [2024-11-22 03:19:06,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:06,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:06,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:06,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:06,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:06,021 INFO L87 Difference]: Start difference. First operand 8405 states and 14180 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:07,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:07,007 INFO L93 Difference]: Finished difference Result 22491 states and 38721 transitions. [2024-11-22 03:19:07,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:07,008 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 03:19:07,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:07,100 INFO L225 Difference]: With dead ends: 22491 [2024-11-22 03:19:07,101 INFO L226 Difference]: Without dead ends: 16219 [2024-11-22 03:19:07,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:07,138 INFO L432 NwaCegarLoop]: 4284 mSDtfsCounter, 4473 mSDsluCounter, 12838 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4490 SdHoareTripleChecker+Valid, 17122 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:07,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4490 Valid, 17122 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:19:07,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16219 states. [2024-11-22 03:19:08,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16219 to 15362. [2024-11-22 03:19:08,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15362 states, 13550 states have (on average 1.5935055350553506) internal successors, (21592), 14218 states have internal predecessors, (21592), 754 states have call successors, (754), 390 states have call predecessors, (754), 1056 states have return successors, (4850), 817 states have call predecessors, (4850), 754 states have call successors, (4850) [2024-11-22 03:19:08,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15362 states to 15362 states and 27196 transitions. [2024-11-22 03:19:08,696 INFO L78 Accepts]: Start accepts. Automaton has 15362 states and 27196 transitions. Word has length 90 [2024-11-22 03:19:08,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:08,697 INFO L471 AbstractCegarLoop]: Abstraction has 15362 states and 27196 transitions. [2024-11-22 03:19:08,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:08,698 INFO L276 IsEmpty]: Start isEmpty. Operand 15362 states and 27196 transitions. [2024-11-22 03:19:08,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:19:08,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:08,712 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] [2024-11-22 03:19:08,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 03:19:08,712 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:08,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:08,713 INFO L85 PathProgramCache]: Analyzing trace with hash -689754270, now seen corresponding path program 1 times [2024-11-22 03:19:08,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:08,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817306566] [2024-11-22 03:19:08,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:08,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:08,840 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 03:19:08,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:08,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817306566] [2024-11-22 03:19:08,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817306566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:08,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:08,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:08,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074005789] [2024-11-22 03:19:08,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:08,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:08,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:08,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:08,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:08,844 INFO L87 Difference]: Start difference. First operand 15362 states and 27196 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:10,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:10,981 INFO L93 Difference]: Finished difference Result 44798 states and 85199 transitions. [2024-11-22 03:19:10,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:10,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 03:19:10,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:11,225 INFO L225 Difference]: With dead ends: 44798 [2024-11-22 03:19:11,226 INFO L226 Difference]: Without dead ends: 31569 [2024-11-22 03:19:11,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:11,294 INFO L432 NwaCegarLoop]: 4281 mSDtfsCounter, 4438 mSDsluCounter, 12829 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4455 SdHoareTripleChecker+Valid, 17110 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:11,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4455 Valid, 17110 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:19:11,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31569 states. [2024-11-22 03:19:13,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31569 to 30395. [2024-11-22 03:19:13,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30395 states, 26133 states have (on average 1.566907741170168) internal successors, (40948), 28195 states have internal predecessors, (40948), 1426 states have call successors, (1426), 774 states have call predecessors, (1426), 2834 states have return successors, (17810), 1553 states have call predecessors, (17810), 1426 states have call successors, (17810) [2024-11-22 03:19:14,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30395 states to 30395 states and 60184 transitions. [2024-11-22 03:19:14,072 INFO L78 Accepts]: Start accepts. Automaton has 30395 states and 60184 transitions. Word has length 90 [2024-11-22 03:19:14,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:14,073 INFO L471 AbstractCegarLoop]: Abstraction has 30395 states and 60184 transitions. [2024-11-22 03:19:14,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:14,076 INFO L276 IsEmpty]: Start isEmpty. Operand 30395 states and 60184 transitions. [2024-11-22 03:19:14,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:19:14,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:14,097 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] [2024-11-22 03:19:14,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 03:19:14,097 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:14,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:14,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1905907996, now seen corresponding path program 1 times [2024-11-22 03:19:14,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:14,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50629312] [2024-11-22 03:19:14,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:14,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:14,201 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 03:19:14,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:14,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50629312] [2024-11-22 03:19:14,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50629312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:14,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:14,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:14,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13040151] [2024-11-22 03:19:14,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:14,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:14,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:14,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:14,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:14,203 INFO L87 Difference]: Start difference. First operand 30395 states and 60184 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:17,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:17,933 INFO L93 Difference]: Finished difference Result 91977 states and 208533 transitions. [2024-11-22 03:19:17,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:17,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 03:19:17,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:18,693 INFO L225 Difference]: With dead ends: 91977 [2024-11-22 03:19:18,694 INFO L226 Difference]: Without dead ends: 63715 [2024-11-22 03:19:18,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:18,780 INFO L432 NwaCegarLoop]: 4276 mSDtfsCounter, 4392 mSDsluCounter, 12822 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4403 SdHoareTripleChecker+Valid, 17098 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:18,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4403 Valid, 17098 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:19:18,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63715 states. [2024-11-22 03:19:24,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63715 to 62432. [2024-11-22 03:19:24,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62432 states, 51892 states have (on average 1.5312572265474447) internal successors, (79460), 58200 states have internal predecessors, (79460), 2698 states have call successors, (2698), 1534 states have call predecessors, (2698), 7840 states have return successors, (68234), 2953 states have call predecessors, (68234), 2698 states have call successors, (68234) [2024-11-22 03:19:24,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62432 states to 62432 states and 150392 transitions. [2024-11-22 03:19:24,630 INFO L78 Accepts]: Start accepts. Automaton has 62432 states and 150392 transitions. Word has length 90 [2024-11-22 03:19:24,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:24,632 INFO L471 AbstractCegarLoop]: Abstraction has 62432 states and 150392 transitions. [2024-11-22 03:19:24,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 03:19:24,633 INFO L276 IsEmpty]: Start isEmpty. Operand 62432 states and 150392 transitions. [2024-11-22 03:19:24,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 03:19:24,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:24,671 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] [2024-11-22 03:19:24,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 03:19:24,671 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:24,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:24,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1657091874, now seen corresponding path program 1 times [2024-11-22 03:19:24,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:24,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153155096] [2024-11-22 03:19:24,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:24,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:24,734 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 03:19:24,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:24,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153155096] [2024-11-22 03:19:24,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153155096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:24,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:24,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 03:19:24,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603677698] [2024-11-22 03:19:24,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:24,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 03:19:24,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:24,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 03:19:24,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 03:19:24,737 INFO L87 Difference]: Start difference. First operand 62432 states and 150392 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 1 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 03:19:30,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:30,165 INFO L93 Difference]: Finished difference Result 156577 states and 375685 transitions. [2024-11-22 03:19:30,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 03:19:30,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 1 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 90 [2024-11-22 03:19:30,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:31,477 INFO L225 Difference]: With dead ends: 156577 [2024-11-22 03:19:31,477 INFO L226 Difference]: Without dead ends: 96279 [2024-11-22 03:19:31,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 03:19:31,689 INFO L432 NwaCegarLoop]: 4460 mSDtfsCounter, 4420 mSDsluCounter, 4393 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4420 SdHoareTripleChecker+Valid, 8853 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:31,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4420 Valid, 8853 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:19:31,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96279 states.