./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.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 860bc4cce2f799c86d6f50223334fb7e75a2513f716d902687ae93b4a9d6cb3b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:16:02,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:16:02,725 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:16:02,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:16:02,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:16:02,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:16:02,760 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:16:02,760 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:16:02,761 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:16:02,761 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:16:02,765 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:16:02,765 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:16:02,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:16:02,766 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:16:02,766 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:16:02,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:16:02,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:16:02,767 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:16:02,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:16:02,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:16:02,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:16:02,770 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:16:02,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:16:02,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:16:02,770 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:16:02,771 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:16:02,772 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:16:02,772 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:16:02,773 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:16:02,773 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:16:02,773 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:16:02,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:16:02,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:16:02,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:16:02,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:16:02,773 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:16:02,774 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:16:02,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:16:02,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:16:02,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:16:02,775 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:16:02,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:16:02,775 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 860bc4cce2f799c86d6f50223334fb7e75a2513f716d902687ae93b4a9d6cb3b [2024-11-11 22:16:02,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:16:03,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:16:03,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:16:03,011 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:16:03,011 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:16:03,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-1.c [2024-11-11 22:16:04,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:16:04,870 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:16:04,871 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-1.c [2024-11-11 22:16:04,913 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f7406b95/cad61ead1381428bb53d93a4524a3a85/FLAGd3ac08337 [2024-11-11 22:16:04,932 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f7406b95/cad61ead1381428bb53d93a4524a3a85 [2024-11-11 22:16:04,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:16:04,936 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:16:04,937 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:16:04,937 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:16:04,942 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:16:04,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:16:04" (1/1) ... [2024-11-11 22:16:04,944 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39546046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:04, skipping insertion in model container [2024-11-11 22:16:04,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:16:04" (1/1) ... [2024-11-11 22:16:05,113 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:16:06,504 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-1.c[382357,382370] [2024-11-11 22:16:06,528 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-1.c[383339,383352] [2024-11-11 22:16:06,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:16:06,712 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:16:07,313 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-1.c[382357,382370] [2024-11-11 22:16:07,316 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-1.c[383339,383352] [2024-11-11 22:16:07,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:16:07,382 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:16:07,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:07 WrapperNode [2024-11-11 22:16:07,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:16:07,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:16:07,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:16:07,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:16:07,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:07" (1/1) ... [2024-11-11 22:16:07,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:07" (1/1) ... [2024-11-11 22:16:07,805 INFO L138 Inliner]: procedures = 56, calls = 60, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 12879 [2024-11-11 22:16:07,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:16:07,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:16:07,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:16:07,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:16:07,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:07" (1/1) ... [2024-11-11 22:16:07,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:07" (1/1) ... [2024-11-11 22:16:07,860 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:07" (1/1) ... [2024-11-11 22:16:07,947 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]. [2024-11-11 22:16:07,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:07" (1/1) ... [2024-11-11 22:16:07,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:07" (1/1) ... [2024-11-11 22:16:08,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:07" (1/1) ... [2024-11-11 22:16:08,196 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:07" (1/1) ... [2024-11-11 22:16:08,217 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:07" (1/1) ... [2024-11-11 22:16:08,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:07" (1/1) ... [2024-11-11 22:16:08,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:16:08,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:16:08,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:16:08,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:16:08,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:07" (1/1) ... [2024-11-11 22:16:08,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:16:08,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:16:08,391 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) [2024-11-11 22:16:08,394 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 [2024-11-11 22:16:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:16:08,427 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 22:16:08,427 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 22:16:08,427 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:16:08,427 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:16:08,427 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 22:16:08,427 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 22:16:08,428 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-11 22:16:08,428 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-11 22:16:08,428 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 22:16:08,428 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 22:16:08,428 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 22:16:08,429 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 22:16:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 22:16:08,429 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 22:16:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:16:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:16:08,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:16:08,528 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:16:08,530 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:16:14,779 INFO L? ?]: Removed 1723 outVars from TransFormulas that were not future-live. [2024-11-11 22:16:14,780 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:16:14,820 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:16:14,821 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-11 22:16:14,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:16:14 BoogieIcfgContainer [2024-11-11 22:16:14,821 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:16:14,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:16:14,823 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:16:14,825 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:16:14,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:16:04" (1/3) ... [2024-11-11 22:16:14,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3506bf6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:16:14, skipping insertion in model container [2024-11-11 22:16:14,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:16:07" (2/3) ... [2024-11-11 22:16:14,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3506bf6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:16:14, skipping insertion in model container [2024-11-11 22:16:14,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:16:14" (3/3) ... [2024-11-11 22:16:14,827 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.06.cil-1.c [2024-11-11 22:16:14,840 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:16:14,840 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:16:14,936 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:16:14,942 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;@540401d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:16:14,942 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:16:14,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 2430 states, 2398 states have (on average 1.8490408673894911) internal successors, (4434), 2403 states have internal predecessors, (4434), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-11 22:16:14,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:16:14,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:16:14,971 INFO L218 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] [2024-11-11 22:16:14,971 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:16:14,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:16:14,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1522104214, now seen corresponding path program 1 times [2024-11-11 22:16:14,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:16:14,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851332817] [2024-11-11 22:16:14,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:16:14,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:16:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:15,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:16:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:15,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:16:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:15,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:16:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:15,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:16:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:15,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:16:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:15,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:16:15,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:16:15,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851332817] [2024-11-11 22:16:15,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851332817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:16:15,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:16:15,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:16:15,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395599824] [2024-11-11 22:16:15,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:16:15,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:16:15,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:16:15,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:16:15,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:16:15,432 INFO L87 Difference]: Start difference. First operand has 2430 states, 2398 states have (on average 1.8490408673894911) internal successors, (4434), 2403 states have internal predecessors, (4434), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:16,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:16:16,488 INFO L93 Difference]: Finished difference Result 4925 states and 9068 transitions. [2024-11-11 22:16:16,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:16:16,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2024-11-11 22:16:16,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:16:16,511 INFO L225 Difference]: With dead ends: 4925 [2024-11-11 22:16:16,512 INFO L226 Difference]: Without dead ends: 2438 [2024-11-11 22:16:16,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:16:16,522 INFO L435 NwaCegarLoop]: 4256 mSDtfsCounter, 609 mSDsluCounter, 12341 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 16597 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:16:16,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 16597 Invalid, 620 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:16:16,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2438 states. [2024-11-11 22:16:16,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2438 to 2362. [2024-11-11 22:16:16,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2362 states, 2332 states have (on average 1.8366209262435678) internal successors, (4283), 2335 states have internal predecessors, (4283), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-11 22:16:16,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 4325 transitions. [2024-11-11 22:16:16,648 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 4325 transitions. Word has length 113 [2024-11-11 22:16:16,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:16:16,649 INFO L471 AbstractCegarLoop]: Abstraction has 2362 states and 4325 transitions. [2024-11-11 22:16:16,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:16,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 4325 transitions. [2024-11-11 22:16:16,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:16:16,656 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:16:16,656 INFO L218 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] [2024-11-11 22:16:16,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:16:16,657 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:16:16,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:16:16,657 INFO L85 PathProgramCache]: Analyzing trace with hash -375392552, now seen corresponding path program 1 times [2024-11-11 22:16:16,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:16:16,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062462799] [2024-11-11 22:16:16,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:16:16,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:16:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:16,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:16:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:16,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:16:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:16,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:16:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:16,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:16:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:16,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:16:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:16,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:16:16,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:16:16,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062462799] [2024-11-11 22:16:16,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062462799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:16:16,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:16:16,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:16:16,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467846100] [2024-11-11 22:16:16,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:16:16,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:16:16,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:16:16,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:16:16,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:16:16,981 INFO L87 Difference]: Start difference. First operand 2362 states and 4325 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:18,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:16:18,891 INFO L93 Difference]: Finished difference Result 2987 states and 5319 transitions. [2024-11-11 22:16:18,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:16:18,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2024-11-11 22:16:18,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:16:18,906 INFO L225 Difference]: With dead ends: 2987 [2024-11-11 22:16:18,907 INFO L226 Difference]: Without dead ends: 2760 [2024-11-11 22:16:18,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:16:18,910 INFO L435 NwaCegarLoop]: 4330 mSDtfsCounter, 4810 mSDsluCounter, 17084 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4823 SdHoareTripleChecker+Valid, 21414 SdHoareTripleChecker+Invalid, 2156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:16:18,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4823 Valid, 21414 Invalid, 2156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:16:18,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2024-11-11 22:16:18,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 2597. [2024-11-11 22:16:18,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2597 states, 2542 states have (on average 1.8139260424862313) internal successors, (4611), 2547 states have internal predecessors, (4611), 39 states have call successors, (39), 13 states have call predecessors, (39), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2024-11-11 22:16:18,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2597 states to 2597 states and 4694 transitions. [2024-11-11 22:16:18,994 INFO L78 Accepts]: Start accepts. Automaton has 2597 states and 4694 transitions. Word has length 113 [2024-11-11 22:16:18,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:16:18,995 INFO L471 AbstractCegarLoop]: Abstraction has 2597 states and 4694 transitions. [2024-11-11 22:16:18,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:18,995 INFO L276 IsEmpty]: Start isEmpty. Operand 2597 states and 4694 transitions. [2024-11-11 22:16:18,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:16:19,000 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:16:19,000 INFO L218 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] [2024-11-11 22:16:19,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:16:19,000 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:16:19,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:16:19,001 INFO L85 PathProgramCache]: Analyzing trace with hash 975992666, now seen corresponding path program 1 times [2024-11-11 22:16:19,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:16:19,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108070079] [2024-11-11 22:16:19,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:16:19,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:16:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:19,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:16:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:19,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:16:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:19,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:16:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:19,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:16:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:19,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:16:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:19,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:16:19,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:16:19,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108070079] [2024-11-11 22:16:19,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108070079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:16:19,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:16:19,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:16:19,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537940115] [2024-11-11 22:16:19,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:16:19,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:16:19,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:16:19,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:16:19,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:16:19,231 INFO L87 Difference]: Start difference. First operand 2597 states and 4694 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:21,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:16:21,173 INFO L93 Difference]: Finished difference Result 3782 states and 6562 transitions. [2024-11-11 22:16:21,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:16:21,174 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2024-11-11 22:16:21,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:16:21,184 INFO L225 Difference]: With dead ends: 3782 [2024-11-11 22:16:21,185 INFO L226 Difference]: Without dead ends: 3322 [2024-11-11 22:16:21,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:16:21,187 INFO L435 NwaCegarLoop]: 4289 mSDtfsCounter, 4835 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4848 SdHoareTripleChecker+Valid, 21310 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:16:21,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4848 Valid, 21310 Invalid, 1970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:16:21,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states. [2024-11-11 22:16:21,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 3031. [2024-11-11 22:16:21,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3031 states, 2932 states have (on average 1.776261937244202) internal successors, (5208), 2939 states have internal predecessors, (5208), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-11-11 22:16:21,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3031 states to 3031 states and 5361 transitions. [2024-11-11 22:16:21,313 INFO L78 Accepts]: Start accepts. Automaton has 3031 states and 5361 transitions. Word has length 113 [2024-11-11 22:16:21,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:16:21,317 INFO L471 AbstractCegarLoop]: Abstraction has 3031 states and 5361 transitions. [2024-11-11 22:16:21,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:21,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3031 states and 5361 transitions. [2024-11-11 22:16:21,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:16:21,319 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:16:21,320 INFO L218 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] [2024-11-11 22:16:21,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:16:21,320 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:16:21,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:16:21,320 INFO L85 PathProgramCache]: Analyzing trace with hash -642982248, now seen corresponding path program 1 times [2024-11-11 22:16:21,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:16:21,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832652110] [2024-11-11 22:16:21,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:16:21,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:16:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:21,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:16:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:21,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:16:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:21,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:16:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:21,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:16:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:21,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:16:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:21,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:16:21,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:16:21,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832652110] [2024-11-11 22:16:21,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832652110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:16:21,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:16:21,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:16:21,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733900459] [2024-11-11 22:16:21,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:16:21,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:16:21,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:16:21,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:16:21,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:16:21,505 INFO L87 Difference]: Start difference. First operand 3031 states and 5361 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:23,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:16:23,427 INFO L93 Difference]: Finished difference Result 5338 states and 8989 transitions. [2024-11-11 22:16:23,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:16:23,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2024-11-11 22:16:23,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:16:23,442 INFO L225 Difference]: With dead ends: 5338 [2024-11-11 22:16:23,442 INFO L226 Difference]: Without dead ends: 4444 [2024-11-11 22:16:23,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:16:23,446 INFO L435 NwaCegarLoop]: 4328 mSDtfsCounter, 4810 mSDsluCounter, 17084 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4823 SdHoareTripleChecker+Valid, 21412 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:16:23,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4823 Valid, 21412 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2093 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-11 22:16:23,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4444 states. [2024-11-11 22:16:23,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4444 to 3901. [2024-11-11 22:16:23,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3901 states, 3714 states have (on average 1.7242864835756597) internal successors, (6404), 3725 states have internal predecessors, (6404), 129 states have call successors, (129), 49 states have call predecessors, (129), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2024-11-11 22:16:23,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3901 states to 3901 states and 6703 transitions. [2024-11-11 22:16:23,544 INFO L78 Accepts]: Start accepts. Automaton has 3901 states and 6703 transitions. Word has length 113 [2024-11-11 22:16:23,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:16:23,545 INFO L471 AbstractCegarLoop]: Abstraction has 3901 states and 6703 transitions. [2024-11-11 22:16:23,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:23,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3901 states and 6703 transitions. [2024-11-11 22:16:23,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:16:23,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:16:23,547 INFO L218 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] [2024-11-11 22:16:23,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:16:23,548 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:16:23,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:16:23,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1526491238, now seen corresponding path program 1 times [2024-11-11 22:16:23,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:16:23,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368888854] [2024-11-11 22:16:23,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:16:23,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:16:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:23,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:16:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:23,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:16:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:23,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:16:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:23,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:16:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:23,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:16:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:23,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:16:23,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:16:23,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368888854] [2024-11-11 22:16:23,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368888854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:16:23,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:16:23,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:16:23,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972062999] [2024-11-11 22:16:23,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:16:23,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:16:23,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:16:23,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:16:23,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:16:23,759 INFO L87 Difference]: Start difference. First operand 3901 states and 6703 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:25,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:16:25,469 INFO L93 Difference]: Finished difference Result 8448 states and 13857 transitions. [2024-11-11 22:16:25,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:16:25,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2024-11-11 22:16:25,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:16:25,494 INFO L225 Difference]: With dead ends: 8448 [2024-11-11 22:16:25,494 INFO L226 Difference]: Without dead ends: 6684 [2024-11-11 22:16:25,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:16:25,504 INFO L435 NwaCegarLoop]: 4329 mSDtfsCounter, 4810 mSDsluCounter, 17084 mSDsCounter, 0 mSdLazyCounter, 2089 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4823 SdHoareTripleChecker+Valid, 21413 SdHoareTripleChecker+Invalid, 2149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:16:25,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4823 Valid, 21413 Invalid, 2149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2089 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:16:25,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6684 states. [2024-11-11 22:16:25,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6684 to 5647. [2024-11-11 22:16:25,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5647 states, 5284 states have (on average 1.6661619984859954) internal successors, (8804), 5303 states have internal predecessors, (8804), 249 states have call successors, (249), 97 states have call predecessors, (249), 112 states have return successors, (360), 262 states have call predecessors, (360), 247 states have call successors, (360) [2024-11-11 22:16:25,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5647 states to 5647 states and 9413 transitions. [2024-11-11 22:16:25,777 INFO L78 Accepts]: Start accepts. Automaton has 5647 states and 9413 transitions. Word has length 113 [2024-11-11 22:16:25,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:16:25,777 INFO L471 AbstractCegarLoop]: Abstraction has 5647 states and 9413 transitions. [2024-11-11 22:16:25,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5647 states and 9413 transitions. [2024-11-11 22:16:25,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:16:25,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:16:25,782 INFO L218 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] [2024-11-11 22:16:25,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:16:25,782 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:16:25,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:16:25,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1554991528, now seen corresponding path program 1 times [2024-11-11 22:16:25,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:16:25,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387821285] [2024-11-11 22:16:25,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:16:25,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:16:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:25,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:16:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:25,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:16:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:25,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:16:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:25,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:16:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:25,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:16:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:25,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:16:25,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:16:25,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387821285] [2024-11-11 22:16:25,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387821285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:16:25,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:16:25,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:16:25,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173607436] [2024-11-11 22:16:25,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:16:25,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:16:25,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:16:25,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:16:25,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:16:25,928 INFO L87 Difference]: Start difference. First operand 5647 states and 9413 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:27,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:16:27,904 INFO L93 Difference]: Finished difference Result 14666 states and 23649 transitions. [2024-11-11 22:16:27,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:16:27,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2024-11-11 22:16:27,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:16:27,956 INFO L225 Difference]: With dead ends: 14666 [2024-11-11 22:16:27,956 INFO L226 Difference]: Without dead ends: 11156 [2024-11-11 22:16:27,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:16:27,974 INFO L435 NwaCegarLoop]: 4329 mSDtfsCounter, 4810 mSDsluCounter, 17084 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4823 SdHoareTripleChecker+Valid, 21413 SdHoareTripleChecker+Invalid, 2140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:16:27,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4823 Valid, 21413 Invalid, 2140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:16:27,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11156 states. [2024-11-11 22:16:28,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11156 to 9153. [2024-11-11 22:16:28,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9153 states, 8438 states have (on average 1.6146006162597772) internal successors, (13624), 8473 states have internal predecessors, (13624), 489 states have call successors, (489), 193 states have call predecessors, (489), 224 states have return successors, (794), 518 states have call predecessors, (794), 487 states have call successors, (794) [2024-11-11 22:16:28,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9153 states to 9153 states and 14907 transitions. [2024-11-11 22:16:28,488 INFO L78 Accepts]: Start accepts. Automaton has 9153 states and 14907 transitions. Word has length 113 [2024-11-11 22:16:28,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:16:28,489 INFO L471 AbstractCegarLoop]: Abstraction has 9153 states and 14907 transitions. [2024-11-11 22:16:28,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:28,490 INFO L276 IsEmpty]: Start isEmpty. Operand 9153 states and 14907 transitions. [2024-11-11 22:16:28,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:16:28,497 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:16:28,497 INFO L218 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] [2024-11-11 22:16:28,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:16:28,498 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:16:28,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:16:28,498 INFO L85 PathProgramCache]: Analyzing trace with hash 799393754, now seen corresponding path program 1 times [2024-11-11 22:16:28,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:16:28,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479584783] [2024-11-11 22:16:28,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:16:28,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:16:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:28,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:16:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:28,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:16:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:28,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:16:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:28,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:16:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:28,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:16:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:28,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:16:28,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:16:28,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479584783] [2024-11-11 22:16:28,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479584783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:16:28,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:16:28,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:16:28,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885647518] [2024-11-11 22:16:28,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:16:28,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:16:28,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:16:28,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:16:28,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:16:28,673 INFO L87 Difference]: Start difference. First operand 9153 states and 14907 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:31,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:16:31,328 INFO L93 Difference]: Finished difference Result 27100 states and 43421 transitions. [2024-11-11 22:16:31,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:16:31,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2024-11-11 22:16:31,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:16:31,403 INFO L225 Difference]: With dead ends: 27100 [2024-11-11 22:16:31,404 INFO L226 Difference]: Without dead ends: 20084 [2024-11-11 22:16:31,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:16:31,434 INFO L435 NwaCegarLoop]: 4327 mSDtfsCounter, 4810 mSDsluCounter, 17084 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4823 SdHoareTripleChecker+Valid, 21411 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:16:31,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4823 Valid, 21411 Invalid, 2121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:16:31,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20084 states. [2024-11-11 22:16:31,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20084 to 16195. [2024-11-11 22:16:32,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16195 states, 14776 states have (on average 1.577422847861397) internal successors, (23308), 14843 states have internal predecessors, (23308), 969 states have call successors, (969), 385 states have call predecessors, (969), 448 states have return successors, (1824), 1030 states have call predecessors, (1824), 967 states have call successors, (1824) [2024-11-11 22:16:32,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16195 states to 16195 states and 26101 transitions. [2024-11-11 22:16:32,052 INFO L78 Accepts]: Start accepts. Automaton has 16195 states and 26101 transitions. Word has length 113 [2024-11-11 22:16:32,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:16:32,052 INFO L471 AbstractCegarLoop]: Abstraction has 16195 states and 26101 transitions. [2024-11-11 22:16:32,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:32,053 INFO L276 IsEmpty]: Start isEmpty. Operand 16195 states and 26101 transitions. [2024-11-11 22:16:32,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:16:32,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:16:32,062 INFO L218 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] [2024-11-11 22:16:32,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:16:32,063 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:16:32,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:16:32,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1618510312, now seen corresponding path program 1 times [2024-11-11 22:16:32,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:16:32,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698853497] [2024-11-11 22:16:32,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:16:32,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:16:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:32,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:16:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:32,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:16:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:32,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:16:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:32,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:16:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:32,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:16:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:32,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:16:32,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:16:32,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698853497] [2024-11-11 22:16:32,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698853497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:16:32,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:16:32,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:16:32,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787629637] [2024-11-11 22:16:32,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:16:32,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:16:32,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:16:32,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:16:32,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:16:32,181 INFO L87 Difference]: Start difference. First operand 16195 states and 26101 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:35,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:16:35,119 INFO L93 Difference]: Finished difference Result 57918 states and 92523 transitions. [2024-11-11 22:16:35,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:16:35,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2024-11-11 22:16:35,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:16:35,267 INFO L225 Difference]: With dead ends: 57918 [2024-11-11 22:16:35,268 INFO L226 Difference]: Without dead ends: 43860 [2024-11-11 22:16:35,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:16:35,330 INFO L435 NwaCegarLoop]: 4327 mSDtfsCounter, 5068 mSDsluCounter, 17076 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5088 SdHoareTripleChecker+Valid, 21403 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:16:35,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5088 Valid, 21403 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2050 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:16:35,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43860 states. [2024-11-11 22:16:36,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43860 to 30149. [2024-11-11 22:16:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30149 states, 27386 states have (on average 1.5569999269699846) internal successors, (42640), 27517 states have internal predecessors, (42640), 1865 states have call successors, (1865), 769 states have call predecessors, (1865), 896 states have return successors, (4306), 1990 states have call predecessors, (4306), 1863 states have call successors, (4306) [2024-11-11 22:16:37,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30149 states to 30149 states and 48811 transitions. [2024-11-11 22:16:37,287 INFO L78 Accepts]: Start accepts. Automaton has 30149 states and 48811 transitions. Word has length 113 [2024-11-11 22:16:37,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:16:37,288 INFO L471 AbstractCegarLoop]: Abstraction has 30149 states and 48811 transitions. [2024-11-11 22:16:37,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:37,288 INFO L276 IsEmpty]: Start isEmpty. Operand 30149 states and 48811 transitions. [2024-11-11 22:16:37,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:16:37,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:16:37,307 INFO L218 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] [2024-11-11 22:16:37,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:16:37,307 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:16:37,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:16:37,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1905723418, now seen corresponding path program 1 times [2024-11-11 22:16:37,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:16:37,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37981247] [2024-11-11 22:16:37,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:16:37,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:16:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:37,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:16:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:37,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:16:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:37,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:16:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:37,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:16:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:37,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:16:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:37,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:16:37,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:16:37,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37981247] [2024-11-11 22:16:37,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37981247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:16:37,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:16:37,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:16:37,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341637588] [2024-11-11 22:16:37,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:16:37,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:16:37,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:16:37,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:16:37,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:16:37,509 INFO L87 Difference]: Start difference. First operand 30149 states and 48811 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:42,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:16:42,622 INFO L93 Difference]: Finished difference Result 109699 states and 177727 transitions. [2024-11-11 22:16:42,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:16:42,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2024-11-11 22:16:42,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:16:43,032 INFO L225 Difference]: With dead ends: 109699 [2024-11-11 22:16:43,033 INFO L226 Difference]: Without dead ends: 81687 [2024-11-11 22:16:43,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:16:43,121 INFO L435 NwaCegarLoop]: 4325 mSDtfsCounter, 5003 mSDsluCounter, 17076 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5023 SdHoareTripleChecker+Valid, 21401 SdHoareTripleChecker+Invalid, 2048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:16:43,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5023 Valid, 21401 Invalid, 2048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:16:43,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81687 states. [2024-11-11 22:16:46,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81687 to 58119. [2024-11-11 22:16:46,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58119 states, 52732 states have (on average 1.547826746567549) internal successors, (81620), 52991 states have internal predecessors, (81620), 3593 states have call successors, (3593), 1537 states have call predecessors, (3593), 1792 states have return successors, (10664), 3846 states have call predecessors, (10664), 3591 states have call successors, (10664) [2024-11-11 22:16:46,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58119 states to 58119 states and 95877 transitions. [2024-11-11 22:16:46,614 INFO L78 Accepts]: Start accepts. Automaton has 58119 states and 95877 transitions. Word has length 113 [2024-11-11 22:16:46,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:16:46,615 INFO L471 AbstractCegarLoop]: Abstraction has 58119 states and 95877 transitions. [2024-11-11 22:16:46,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:46,615 INFO L276 IsEmpty]: Start isEmpty. Operand 58119 states and 95877 transitions. [2024-11-11 22:16:46,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 22:16:46,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:16:46,651 INFO L218 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] [2024-11-11 22:16:46,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:16:46,652 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:16:46,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:16:46,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1319447196, now seen corresponding path program 1 times [2024-11-11 22:16:46,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:16:46,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530005582] [2024-11-11 22:16:46,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:16:46,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:16:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:46,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:16:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:46,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:16:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:46,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:16:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:46,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:16:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:46,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:16:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:16:46,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:16:46,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:16:46,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530005582] [2024-11-11 22:16:46,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530005582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:16:46,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:16:46,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:16:46,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036919821] [2024-11-11 22:16:46,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:16:46,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:16:46,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:16:46,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:16:46,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:16:46,779 INFO L87 Difference]: Start difference. First operand 58119 states and 95877 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:16:54,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:16:54,906 INFO L93 Difference]: Finished difference Result 212553 states and 352739 transitions. [2024-11-11 22:16:54,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:16:54,906 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2024-11-11 22:16:54,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:16:55,473 INFO L225 Difference]: With dead ends: 212553 [2024-11-11 22:16:55,474 INFO L226 Difference]: Without dead ends: 156571 [2024-11-11 22:16:55,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:16:55,622 INFO L435 NwaCegarLoop]: 4290 mSDtfsCounter, 4976 mSDsluCounter, 17016 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4996 SdHoareTripleChecker+Valid, 21306 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:16:55,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4996 Valid, 21306 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:16:55,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156571 states.