./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.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 db9df7d135a21d792e3a2ca832f85f7c7fc22de6655b2cb0ba03be5cd467b7e3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:35:02,581 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:35:02,661 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:35:02,669 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:35:02,670 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:35:02,699 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:35:02,700 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:35:02,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:35:02,701 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:35:02,703 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:35:02,703 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:35:02,703 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:35:02,704 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:35:02,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:35:02,705 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:35:02,705 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:35:02,705 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:35:02,706 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:35:02,708 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:35:02,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:35:02,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:35:02,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:35:02,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:35:02,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:35:02,714 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:35:02,714 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:35:02,714 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:35:02,715 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:35:02,715 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:35:02,715 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:35:02,716 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:35:02,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:35:02,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:35:02,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:35:02,717 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:35:02,717 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:35:02,717 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:35:02,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:35:02,718 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:35:02,718 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:35:02,718 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:35:02,720 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:35:02,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db9df7d135a21d792e3a2ca832f85f7c7fc22de6655b2cb0ba03be5cd467b7e3 [2024-11-18 15:35:02,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:35:03,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:35:03,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:35:03,019 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:35:03,020 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:35:03,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.c [2024-11-18 15:35:04,456 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:35:05,168 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:35:05,168 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.c [2024-11-18 15:35:05,216 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8dd9d577/d3a962694db140b5b9a56aa5a86dc456/FLAG5ed211a30 [2024-11-18 15:35:05,232 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8dd9d577/d3a962694db140b5b9a56aa5a86dc456 [2024-11-18 15:35:05,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:35:05,237 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:35:05,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:35:05,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:35:05,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:35:05,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:35:05" (1/1) ... [2024-11-18 15:35:05,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51010ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:05, skipping insertion in model container [2024-11-18 15:35:05,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:35:05" (1/1) ... [2024-11-18 15:35:05,419 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:35:07,544 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_label43+token_ring.08.cil-1.c[381679,381692] [2024-11-18 15:35:07,574 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_label43+token_ring.08.cil-1.c[383339,383352] [2024-11-18 15:35:07,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:35:07,852 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:35:08,690 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_label43+token_ring.08.cil-1.c[381679,381692] [2024-11-18 15:35:08,695 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_label43+token_ring.08.cil-1.c[383339,383352] [2024-11-18 15:35:08,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:35:08,780 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:35:08,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:08 WrapperNode [2024-11-18 15:35:08,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:35:08,783 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:35:08,784 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:35:08,784 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:35:08,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:08" (1/1) ... [2024-11-18 15:35:08,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:08" (1/1) ... [2024-11-18 15:35:09,365 INFO L138 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12993 [2024-11-18 15:35:09,366 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:35:09,367 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:35:09,367 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:35:09,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:35:09,379 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:08" (1/1) ... [2024-11-18 15:35:09,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:08" (1/1) ... [2024-11-18 15:35:09,471 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:08" (1/1) ... [2024-11-18 15:35:09,600 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]. [2024-11-18 15:35:09,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:08" (1/1) ... [2024-11-18 15:35:09,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:08" (1/1) ... [2024-11-18 15:35:09,794 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:08" (1/1) ... [2024-11-18 15:35:09,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:08" (1/1) ... [2024-11-18 15:35:09,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:08" (1/1) ... [2024-11-18 15:35:09,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:08" (1/1) ... [2024-11-18 15:35:09,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:35:09,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:35:09,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:35:09,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:35:09,984 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:08" (1/1) ... [2024-11-18 15:35:09,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:35:10,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:35:10,023 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) [2024-11-18 15:35:10,025 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 [2024-11-18 15:35:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:35:10,081 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-18 15:35:10,081 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-18 15:35:10,081 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 15:35:10,083 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 15:35:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-18 15:35:10,083 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-18 15:35:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-18 15:35:10,083 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-18 15:35:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-18 15:35:10,084 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-18 15:35:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-18 15:35:10,084 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-18 15:35:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:35:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:35:10,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:35:10,361 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:35:10,372 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:35:20,104 INFO L? ?]: Removed 1731 outVars from TransFormulas that were not future-live. [2024-11-18 15:35:20,104 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:35:20,177 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:35:20,178 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-18 15:35:20,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:35:20 BoogieIcfgContainer [2024-11-18 15:35:20,178 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:35:20,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:35:20,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:35:20,185 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:35:20,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:35:05" (1/3) ... [2024-11-18 15:35:20,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69aa4523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:35:20, skipping insertion in model container [2024-11-18 15:35:20,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:08" (2/3) ... [2024-11-18 15:35:20,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69aa4523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:35:20, skipping insertion in model container [2024-11-18 15:35:20,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:35:20" (3/3) ... [2024-11-18 15:35:20,188 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.08.cil-1.c [2024-11-18 15:35:20,207 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:35:20,207 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 15:35:20,365 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:35:20,372 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;@2ce2c84c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:35:20,372 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 15:35:20,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 2474 states, 2443 states have (on average 1.845272206303725) internal successors, (4508), 2446 states have internal predecessors, (4508), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-18 15:35:20,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:35:20,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:35:20,410 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:35:20,410 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:35:20,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:35:20,417 INFO L85 PathProgramCache]: Analyzing trace with hash -372695446, now seen corresponding path program 1 times [2024-11-18 15:35:20,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:35:20,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624981999] [2024-11-18 15:35:20,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:35:20,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:35:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:35:20,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:35:20,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:35:20,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624981999] [2024-11-18 15:35:20,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624981999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:35:20,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:35:20,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:35:20,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359746861] [2024-11-18 15:35:20,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:35:20,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:35:20,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:35:20,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:35:20,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:35:20,962 INFO L87 Difference]: Start difference. First operand has 2474 states, 2443 states have (on average 1.845272206303725) internal successors, (4508), 2446 states have internal predecessors, (4508), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2024-11-18 15:35:21,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:35:21,171 INFO L93 Difference]: Finished difference Result 4942 states and 9093 transitions. [2024-11-18 15:35:21,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:35:21,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 134 [2024-11-18 15:35:21,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:35:21,205 INFO L225 Difference]: With dead ends: 4942 [2024-11-18 15:35:21,205 INFO L226 Difference]: Without dead ends: 2407 [2024-11-18 15:35:21,220 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 [2024-11-18 15:35:21,224 INFO L432 NwaCegarLoop]: 4465 mSDtfsCounter, 438 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 8487 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 [2024-11-18 15:35:21,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 8487 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:35:21,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2407 states. [2024-11-18 15:35:21,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2407 to 2407. [2024-11-18 15:35:21,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2377 states have (on average 1.831299957930164) internal successors, (4353), 2379 states have internal predecessors, (4353), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-18 15:35:21,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 4397 transitions. [2024-11-18 15:35:21,381 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 4397 transitions. Word has length 134 [2024-11-18 15:35:21,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:35:21,383 INFO L471 AbstractCegarLoop]: Abstraction has 2407 states and 4397 transitions. [2024-11-18 15:35:21,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2024-11-18 15:35:21,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 4397 transitions. [2024-11-18 15:35:21,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:35:21,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:35:21,393 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:35:21,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:35:21,397 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:35:21,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:35:21,398 INFO L85 PathProgramCache]: Analyzing trace with hash 333901160, now seen corresponding path program 1 times [2024-11-18 15:35:21,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:35:21,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042823715] [2024-11-18 15:35:21,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:35:21,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:35:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:35:21,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:35:21,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:35:21,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042823715] [2024-11-18 15:35:21,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042823715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:35:21,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:35:21,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:35:21,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759757178] [2024-11-18 15:35:21,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:35:21,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:35:21,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:35:21,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:35:21,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:35:21,814 INFO L87 Difference]: Start difference. First operand 2407 states and 4397 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-11-18 15:35:22,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:35:22,956 INFO L93 Difference]: Finished difference Result 2979 states and 5289 transitions. [2024-11-18 15:35:22,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:35:22,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 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 134 [2024-11-18 15:35:22,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:35:22,975 INFO L225 Difference]: With dead ends: 2979 [2024-11-18 15:35:22,975 INFO L226 Difference]: Without dead ends: 2709 [2024-11-18 15:35:22,979 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 [2024-11-18 15:35:22,980 INFO L432 NwaCegarLoop]: 4300 mSDtfsCounter, 4777 mSDsluCounter, 8785 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4793 SdHoareTripleChecker+Valid, 13085 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:35:22,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4793 Valid, 13085 Invalid, 516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:35:22,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2024-11-18 15:35:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2688. [2024-11-18 15:35:23,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2688 states, 2634 states have (on average 1.8048595292331056) internal successors, (4754), 2637 states have internal predecessors, (4754), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2024-11-18 15:35:23,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2688 states to 2688 states and 4833 transitions. [2024-11-18 15:35:23,149 INFO L78 Accepts]: Start accepts. Automaton has 2688 states and 4833 transitions. Word has length 134 [2024-11-18 15:35:23,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:35:23,151 INFO L471 AbstractCegarLoop]: Abstraction has 2688 states and 4833 transitions. [2024-11-18 15:35:23,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-11-18 15:35:23,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2688 states and 4833 transitions. [2024-11-18 15:35:23,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:35:23,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:35:23,158 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:35:23,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:35:23,159 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:35:23,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:35:23,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1372602388, now seen corresponding path program 1 times [2024-11-18 15:35:23,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:35:23,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500571418] [2024-11-18 15:35:23,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:35:23,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:35:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:35:23,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:35:23,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:35:23,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500571418] [2024-11-18 15:35:23,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500571418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:35:23,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:35:23,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:35:23,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485382245] [2024-11-18 15:35:23,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:35:23,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:35:23,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:35:23,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:35:23,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:35:23,418 INFO L87 Difference]: Start difference. First operand 2688 states and 4833 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:24,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:35:24,224 INFO L93 Difference]: Finished difference Result 3594 states and 6258 transitions. [2024-11-18 15:35:24,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:35:24,227 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-18 15:35:24,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:35:24,248 INFO L225 Difference]: With dead ends: 3594 [2024-11-18 15:35:24,249 INFO L226 Difference]: Without dead ends: 3043 [2024-11-18 15:35:24,254 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 [2024-11-18 15:35:24,255 INFO L432 NwaCegarLoop]: 4534 mSDtfsCounter, 4779 mSDsluCounter, 13631 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 18165 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:35:24,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 18165 Invalid, 846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:35:24,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2024-11-18 15:35:24,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 2950. [2024-11-18 15:35:24,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2950 states, 2872 states have (on average 1.7816852367688023) internal successors, (5117), 2876 states have internal predecessors, (5117), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (60), 57 states have call predecessors, (60), 56 states have call successors, (60) [2024-11-18 15:35:24,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2950 states to 2950 states and 5233 transitions. [2024-11-18 15:35:24,356 INFO L78 Accepts]: Start accepts. Automaton has 2950 states and 5233 transitions. Word has length 134 [2024-11-18 15:35:24,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:35:24,357 INFO L471 AbstractCegarLoop]: Abstraction has 2950 states and 5233 transitions. [2024-11-18 15:35:24,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:24,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2950 states and 5233 transitions. [2024-11-18 15:35:24,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:35:24,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:35:24,362 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:35:24,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:35:24,362 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:35:24,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:35:24,363 INFO L85 PathProgramCache]: Analyzing trace with hash 629283882, now seen corresponding path program 1 times [2024-11-18 15:35:24,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:35:24,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277463253] [2024-11-18 15:35:24,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:35:24,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:35:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:35:24,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:35:24,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:35:24,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277463253] [2024-11-18 15:35:24,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277463253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:35:24,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:35:24,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:35:24,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898299548] [2024-11-18 15:35:24,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:35:24,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:35:24,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:35:24,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:35:24,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:35:24,559 INFO L87 Difference]: Start difference. First operand 2950 states and 5233 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:25,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:35:25,348 INFO L93 Difference]: Finished difference Result 4426 states and 7549 transitions. [2024-11-18 15:35:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:35:25,353 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-18 15:35:25,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:35:25,394 INFO L225 Difference]: With dead ends: 4426 [2024-11-18 15:35:25,398 INFO L226 Difference]: Without dead ends: 3613 [2024-11-18 15:35:25,411 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 [2024-11-18 15:35:25,412 INFO L432 NwaCegarLoop]: 4326 mSDtfsCounter, 4798 mSDsluCounter, 13132 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4814 SdHoareTripleChecker+Valid, 17458 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:35:25,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4814 Valid, 17458 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:35:25,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3613 states. [2024-11-18 15:35:25,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3613 to 3507. [2024-11-18 15:35:25,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3507 states, 3379 states have (on average 1.7466706126072802) internal successors, (5902), 3387 states have internal predecessors, (5902), 90 states have call successors, (90), 30 states have call predecessors, (90), 36 states have return successors, (106), 93 states have call predecessors, (106), 90 states have call successors, (106) [2024-11-18 15:35:25,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3507 states to 3507 states and 6098 transitions. [2024-11-18 15:35:25,789 INFO L78 Accepts]: Start accepts. Automaton has 3507 states and 6098 transitions. Word has length 134 [2024-11-18 15:35:25,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:35:25,799 INFO L471 AbstractCegarLoop]: Abstraction has 3507 states and 6098 transitions. [2024-11-18 15:35:25,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:25,800 INFO L276 IsEmpty]: Start isEmpty. Operand 3507 states and 6098 transitions. [2024-11-18 15:35:25,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:35:25,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:35:25,802 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:35:25,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:35:25,803 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:35:25,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:35:25,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1938538452, now seen corresponding path program 1 times [2024-11-18 15:35:25,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:35:25,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126086793] [2024-11-18 15:35:25,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:35:25,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:35:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:35:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:35:26,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:35:26,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126086793] [2024-11-18 15:35:26,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126086793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:35:26,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:35:26,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:35:26,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181406625] [2024-11-18 15:35:26,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:35:26,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:35:26,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:35:26,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:35:26,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:35:26,245 INFO L87 Difference]: Start difference. First operand 3507 states and 6098 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:27,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:35:27,524 INFO L93 Difference]: Finished difference Result 6217 states and 10388 transitions. [2024-11-18 15:35:27,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:35:27,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-18 15:35:27,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:35:27,549 INFO L225 Difference]: With dead ends: 6217 [2024-11-18 15:35:27,549 INFO L226 Difference]: Without dead ends: 4847 [2024-11-18 15:35:27,554 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 [2024-11-18 15:35:27,555 INFO L432 NwaCegarLoop]: 4527 mSDtfsCounter, 4769 mSDsluCounter, 13610 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4785 SdHoareTripleChecker+Valid, 18137 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:35:27,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4785 Valid, 18137 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 15:35:27,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2024-11-18 15:35:27,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4714. [2024-11-18 15:35:27,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4714 states, 4480 states have (on average 1.7049107142857143) internal successors, (7638), 4502 states have internal predecessors, (7638), 158 states have call successors, (158), 54 states have call predecessors, (158), 74 states have return successors, (222), 165 states have call predecessors, (222), 158 states have call successors, (222) [2024-11-18 15:35:27,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4714 states to 4714 states and 8018 transitions. [2024-11-18 15:35:27,735 INFO L78 Accepts]: Start accepts. Automaton has 4714 states and 8018 transitions. Word has length 134 [2024-11-18 15:35:27,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:35:27,736 INFO L471 AbstractCegarLoop]: Abstraction has 4714 states and 8018 transitions. [2024-11-18 15:35:27,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:27,736 INFO L276 IsEmpty]: Start isEmpty. Operand 4714 states and 8018 transitions. [2024-11-18 15:35:27,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:35:27,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:35:27,740 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:35:27,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:35:27,740 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:35:27,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:35:27,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1467182102, now seen corresponding path program 1 times [2024-11-18 15:35:27,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:35:27,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638849807] [2024-11-18 15:35:27,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:35:27,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:35:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:35:28,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:35:28,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:35:28,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638849807] [2024-11-18 15:35:28,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638849807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:35:28,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:35:28,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:35:28,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766237475] [2024-11-18 15:35:28,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:35:28,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:35:28,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:35:28,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:35:28,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:35:28,010 INFO L87 Difference]: Start difference. First operand 4714 states and 8018 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:29,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:35:29,149 INFO L93 Difference]: Finished difference Result 10114 states and 16738 transitions. [2024-11-18 15:35:29,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:35:29,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-18 15:35:29,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:35:29,211 INFO L225 Difference]: With dead ends: 10114 [2024-11-18 15:35:29,211 INFO L226 Difference]: Without dead ends: 7537 [2024-11-18 15:35:29,226 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 [2024-11-18 15:35:29,228 INFO L432 NwaCegarLoop]: 4520 mSDtfsCounter, 4761 mSDsluCounter, 13591 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4777 SdHoareTripleChecker+Valid, 18111 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:35:29,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4777 Valid, 18111 Invalid, 846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:35:29,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7537 states. [2024-11-18 15:35:29,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7537 to 7362. [2024-11-18 15:35:29,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7362 states, 6898 states have (on average 1.6700492896491737) internal successors, (11520), 6966 states have internal predecessors, (11520), 294 states have call successors, (294), 102 states have call predecessors, (294), 168 states have return successors, (550), 309 states have call predecessors, (550), 294 states have call successors, (550) [2024-11-18 15:35:29,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7362 states to 7362 states and 12364 transitions. [2024-11-18 15:35:29,548 INFO L78 Accepts]: Start accepts. Automaton has 7362 states and 12364 transitions. Word has length 134 [2024-11-18 15:35:29,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:35:29,548 INFO L471 AbstractCegarLoop]: Abstraction has 7362 states and 12364 transitions. [2024-11-18 15:35:29,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:29,549 INFO L276 IsEmpty]: Start isEmpty. Operand 7362 states and 12364 transitions. [2024-11-18 15:35:29,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:35:29,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:35:29,554 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:35:29,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:35:29,555 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:35:29,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:35:29,555 INFO L85 PathProgramCache]: Analyzing trace with hash 696434472, now seen corresponding path program 1 times [2024-11-18 15:35:29,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:35:29,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806493263] [2024-11-18 15:35:29,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:35:29,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:35:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:35:29,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:35:29,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:35:29,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806493263] [2024-11-18 15:35:29,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806493263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:35:29,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:35:29,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:35:29,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337971538] [2024-11-18 15:35:29,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:35:29,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:35:29,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:35:29,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:35:29,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:35:29,733 INFO L87 Difference]: Start difference. First operand 7362 states and 12364 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:31,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:35:31,047 INFO L93 Difference]: Finished difference Result 18826 states and 31526 transitions. [2024-11-18 15:35:31,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:35:31,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-18 15:35:31,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:35:31,134 INFO L225 Difference]: With dead ends: 18826 [2024-11-18 15:35:31,134 INFO L226 Difference]: Without dead ends: 13601 [2024-11-18 15:35:31,162 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 [2024-11-18 15:35:31,165 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 4756 mSDsluCounter, 13582 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4772 SdHoareTripleChecker+Valid, 18099 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:35:31,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4772 Valid, 18099 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:35:31,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13601 states. [2024-11-18 15:35:31,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13601 to 13333. [2024-11-18 15:35:31,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13333 states, 12355 states have (on average 1.6563334682314852) internal successors, (20464), 12569 states have internal predecessors, (20464), 566 states have call successors, (566), 198 states have call predecessors, (566), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2024-11-18 15:35:32,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13333 states to 13333 states and 22620 transitions. [2024-11-18 15:35:32,019 INFO L78 Accepts]: Start accepts. Automaton has 13333 states and 22620 transitions. Word has length 134 [2024-11-18 15:35:32,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:35:32,020 INFO L471 AbstractCegarLoop]: Abstraction has 13333 states and 22620 transitions. [2024-11-18 15:35:32,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:32,020 INFO L276 IsEmpty]: Start isEmpty. Operand 13333 states and 22620 transitions. [2024-11-18 15:35:32,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:35:32,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:35:32,030 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:35:32,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:35:32,031 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:35:32,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:35:32,032 INFO L85 PathProgramCache]: Analyzing trace with hash -342150102, now seen corresponding path program 1 times [2024-11-18 15:35:32,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:35:32,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723378334] [2024-11-18 15:35:32,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:35:32,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:35:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:35:32,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:35:32,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:35:32,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723378334] [2024-11-18 15:35:32,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723378334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:35:32,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:35:32,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:35:32,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737618078] [2024-11-18 15:35:32,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:35:32,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:35:32,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:35:32,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:35:32,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:35:32,203 INFO L87 Difference]: Start difference. First operand 13333 states and 22620 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:33,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:35:33,376 INFO L93 Difference]: Finished difference Result 27469 states and 47493 transitions. [2024-11-18 15:35:33,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 15:35:33,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-18 15:35:33,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:35:33,457 INFO L225 Difference]: With dead ends: 27469 [2024-11-18 15:35:33,458 INFO L226 Difference]: Without dead ends: 16273 [2024-11-18 15:35:33,503 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 [2024-11-18 15:35:33,504 INFO L432 NwaCegarLoop]: 4277 mSDtfsCounter, 4537 mSDsluCounter, 8439 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4553 SdHoareTripleChecker+Valid, 12716 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:35:33,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4553 Valid, 12716 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:35:33,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16273 states. [2024-11-18 15:35:34,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16273 to 13333. [2024-11-18 15:35:34,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13333 states, 12355 states have (on average 1.6536624848239578) internal successors, (20431), 12569 states have internal predecessors, (20431), 566 states have call successors, (566), 198 states have call predecessors, (566), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2024-11-18 15:35:34,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13333 states to 13333 states and 22587 transitions. [2024-11-18 15:35:34,485 INFO L78 Accepts]: Start accepts. Automaton has 13333 states and 22587 transitions. Word has length 134 [2024-11-18 15:35:34,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:35:34,485 INFO L471 AbstractCegarLoop]: Abstraction has 13333 states and 22587 transitions. [2024-11-18 15:35:34,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:34,486 INFO L276 IsEmpty]: Start isEmpty. Operand 13333 states and 22587 transitions. [2024-11-18 15:35:34,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:35:34,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:35:34,496 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:35:34,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:35:34,496 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:35:34,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:35:34,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1979651816, now seen corresponding path program 1 times [2024-11-18 15:35:34,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:35:34,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020718050] [2024-11-18 15:35:34,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:35:34,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:35:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:35:34,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:35:34,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:35:34,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020718050] [2024-11-18 15:35:34,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020718050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:35:34,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:35:34,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:35:34,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679523489] [2024-11-18 15:35:34,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:35:34,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:35:34,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:35:34,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:35:34,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:35:34,686 INFO L87 Difference]: Start difference. First operand 13333 states and 22587 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:36,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:35:36,468 INFO L93 Difference]: Finished difference Result 38497 states and 66745 transitions. [2024-11-18 15:35:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:35:36,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-18 15:35:36,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:35:36,588 INFO L225 Difference]: With dead ends: 38497 [2024-11-18 15:35:36,589 INFO L226 Difference]: Without dead ends: 27301 [2024-11-18 15:35:36,633 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 [2024-11-18 15:35:36,635 INFO L432 NwaCegarLoop]: 4509 mSDtfsCounter, 4743 mSDsluCounter, 13559 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4759 SdHoareTripleChecker+Valid, 18068 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:35:36,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4759 Valid, 18068 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:35:36,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27301 states. [2024-11-18 15:35:38,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27301 to 26895. [2024-11-18 15:35:38,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26895 states, 24727 states have (on average 1.6591175637966595) internal successors, (41025), 25395 states have internal predecessors, (41025), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 1056 states have return successors, (5206), 1173 states have call predecessors, (5206), 1110 states have call successors, (5206) [2024-11-18 15:35:38,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26895 states to 26895 states and 47341 transitions. [2024-11-18 15:35:38,589 INFO L78 Accepts]: Start accepts. Automaton has 26895 states and 47341 transitions. Word has length 134 [2024-11-18 15:35:38,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:35:38,590 INFO L471 AbstractCegarLoop]: Abstraction has 26895 states and 47341 transitions. [2024-11-18 15:35:38,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:38,591 INFO L276 IsEmpty]: Start isEmpty. Operand 26895 states and 47341 transitions. [2024-11-18 15:35:38,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:35:38,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:35:38,603 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:35:38,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:35:38,604 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:35:38,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:35:38,611 INFO L85 PathProgramCache]: Analyzing trace with hash -162208662, now seen corresponding path program 1 times [2024-11-18 15:35:38,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:35:38,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085540594] [2024-11-18 15:35:38,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:35:38,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:35:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:35:38,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:35:38,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:35:38,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085540594] [2024-11-18 15:35:38,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085540594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:35:38,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:35:38,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:35:38,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039110134] [2024-11-18 15:35:38,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:35:38,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:35:38,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:35:38,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:35:38,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:35:38,760 INFO L87 Difference]: Start difference. First operand 26895 states and 47341 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:42,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:35:42,583 INFO L93 Difference]: Finished difference Result 87989 states and 161418 transitions. [2024-11-18 15:35:42,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:35:42,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-18 15:35:42,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:35:42,996 INFO L225 Difference]: With dead ends: 87989 [2024-11-18 15:35:42,996 INFO L226 Difference]: Without dead ends: 63231 [2024-11-18 15:35:43,226 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 [2024-11-18 15:35:43,227 INFO L432 NwaCegarLoop]: 4504 mSDtfsCounter, 4992 mSDsluCounter, 13539 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5017 SdHoareTripleChecker+Valid, 18043 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 15:35:43,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5017 Valid, 18043 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 15:35:43,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63231 states. [2024-11-18 15:35:45,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63231 to 58444. [2024-11-18 15:35:46,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58444 states, 53474 states have (on average 1.6798631110446198) internal successors, (89829), 55536 states have internal predecessors, (89829), 2134 states have call successors, (2134), 774 states have call predecessors, (2134), 2834 states have return successors, (18518), 2261 states have call predecessors, (18518), 2134 states have call successors, (18518) [2024-11-18 15:35:46,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58444 states to 58444 states and 110481 transitions. [2024-11-18 15:35:46,326 INFO L78 Accepts]: Start accepts. Automaton has 58444 states and 110481 transitions. Word has length 134 [2024-11-18 15:35:46,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:35:46,326 INFO L471 AbstractCegarLoop]: Abstraction has 58444 states and 110481 transitions. [2024-11-18 15:35:46,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:46,327 INFO L276 IsEmpty]: Start isEmpty. Operand 58444 states and 110481 transitions. [2024-11-18 15:35:46,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:35:46,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:35:46,350 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:35:46,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:35:46,350 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:35:46,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:35:46,351 INFO L85 PathProgramCache]: Analyzing trace with hash -785490264, now seen corresponding path program 1 times [2024-11-18 15:35:46,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:35:46,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921757183] [2024-11-18 15:35:46,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:35:46,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:35:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:35:46,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:35:46,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:35:46,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921757183] [2024-11-18 15:35:46,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921757183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:35:46,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:35:46,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:35:46,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854789297] [2024-11-18 15:35:46,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:35:46,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:35:46,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:35:46,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:35:46,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:35:46,973 INFO L87 Difference]: Start difference. First operand 58444 states and 110481 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:35:53,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:35:53,307 INFO L93 Difference]: Finished difference Result 198418 states and 401260 transitions. [2024-11-18 15:35:53,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:35:53,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-18 15:35:53,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:35:54,379 INFO L225 Difference]: With dead ends: 198418 [2024-11-18 15:35:54,379 INFO L226 Difference]: Without dead ends: 142111 [2024-11-18 15:35:54,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:35:54,825 INFO L432 NwaCegarLoop]: 4326 mSDtfsCounter, 4840 mSDsluCounter, 13098 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4855 SdHoareTripleChecker+Valid, 17424 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:35:54,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4855 Valid, 17424 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:35:54,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142111 states. [2024-11-18 15:36:03,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142111 to 133103. [2024-11-18 15:36:03,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133103 states, 121135 states have (on average 1.7058075700664548) internal successors, (206633), 127443 states have internal predecessors, (206633), 4118 states have call successors, (4118), 1542 states have call predecessors, (4118), 7848 states have return successors, (69654), 4373 states have call predecessors, (69654), 4118 states have call successors, (69654) [2024-11-18 15:36:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133103 states to 133103 states and 280405 transitions. [2024-11-18 15:36:05,446 INFO L78 Accepts]: Start accepts. Automaton has 133103 states and 280405 transitions. Word has length 134 [2024-11-18 15:36:05,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:36:05,447 INFO L471 AbstractCegarLoop]: Abstraction has 133103 states and 280405 transitions. [2024-11-18 15:36:05,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-18 15:36:05,448 INFO L276 IsEmpty]: Start isEmpty. Operand 133103 states and 280405 transitions. [2024-11-18 15:36:05,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:36:05,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:36:05,502 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:36:05,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:36:05,503 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:36:05,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:36:05,503 INFO L85 PathProgramCache]: Analyzing trace with hash -667048790, now seen corresponding path program 1 times [2024-11-18 15:36:05,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:36:05,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907157458] [2024-11-18 15:36:05,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:36:05,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:36:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:36:05,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:36:05,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:36:05,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907157458] [2024-11-18 15:36:05,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907157458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:36:05,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:36:05,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:36:05,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100526232] [2024-11-18 15:36:05,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:36:05,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:36:05,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:36:05,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:36:05,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:36:05,667 INFO L87 Difference]: Start difference. First operand 133103 states and 280405 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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)