./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b445a4f49d9151eb44c8190083d36f280681906d4dfab457d725a1f68c1551d8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:38:13,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:38:13,399 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:38:13,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:38:13,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:38:13,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:38:13,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:38:13,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:38:13,425 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:38:13,426 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:38:13,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:38:13,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:38:13,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:38:13,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:38:13,427 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:38:13,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:38:13,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:38:13,428 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:38:13,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:38:13,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:38:13,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:38:13,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:38:13,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:38:13,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:38:13,434 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:38:13,435 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:38:13,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:38:13,435 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:38:13,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:38:13,435 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:38:13,435 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:38:13,436 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:38:13,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:38:13,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:38:13,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:38:13,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:38:13,437 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:38:13,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:38:13,437 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:38:13,437 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:38:13,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:38:13,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:38:13,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b445a4f49d9151eb44c8190083d36f280681906d4dfab457d725a1f68c1551d8 [2024-11-18 15:38:13,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:38:13,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:38:13,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:38:13,673 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:38:13,673 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:38:13,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c [2024-11-18 15:38:14,965 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:38:15,464 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:38:15,465 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c [2024-11-18 15:38:15,498 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492246ec9/8997c0de720d43b0801829ce845b33cf/FLAG86f7fb851 [2024-11-18 15:38:15,512 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492246ec9/8997c0de720d43b0801829ce845b33cf [2024-11-18 15:38:15,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:38:15,518 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:38:15,520 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:38:15,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:38:15,544 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:38:15,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:38:15" (1/1) ... [2024-11-18 15:38:15,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55998535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:15, skipping insertion in model container [2024-11-18 15:38:15,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:38:15" (1/1) ... [2024-11-18 15:38:15,683 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:38:16,924 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c[380323,380336] [2024-11-18 15:38:16,946 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c[383339,383352] [2024-11-18 15:38:17,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:38:17,175 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:38:17,829 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c[380323,380336] [2024-11-18 15:38:17,834 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c[383339,383352] [2024-11-18 15:38:17,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:38:17,901 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:38:17,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:17 WrapperNode [2024-11-18 15:38:17,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:38:17,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:38:17,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:38:17,903 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:38:17,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:17" (1/1) ... [2024-11-18 15:38:17,974 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:17" (1/1) ... [2024-11-18 15:38:18,339 INFO L138 Inliner]: procedures = 62, calls = 69, calls flagged for inlining = 39, calls inlined = 39, statements flattened = 13059 [2024-11-18 15:38:18,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:38:18,341 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:38:18,341 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:38:18,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:38:18,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:17" (1/1) ... [2024-11-18 15:38:18,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:17" (1/1) ... [2024-11-18 15:38:18,434 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:17" (1/1) ... [2024-11-18 15:38:18,587 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 15:38:18,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:17" (1/1) ... [2024-11-18 15:38:18,587 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:17" (1/1) ... [2024-11-18 15:38:18,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:17" (1/1) ... [2024-11-18 15:38:18,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:17" (1/1) ... [2024-11-18 15:38:18,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:17" (1/1) ... [2024-11-18 15:38:18,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:17" (1/1) ... [2024-11-18 15:38:18,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:38:18,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:38:18,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:38:18,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:38:18,900 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:17" (1/1) ... [2024-11-18 15:38:18,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:38:18,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:38:18,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 15:38:18,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 15:38:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:38:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-18 15:38:18,963 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-18 15:38:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 15:38:18,963 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 15:38:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-18 15:38:18,963 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-18 15:38:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-18 15:38:18,963 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-18 15:38:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-18 15:38:18,963 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-18 15:38:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-18 15:38:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-18 15:38:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-18 15:38:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-18 15:38:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:38:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:38:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:38:19,069 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:38:19,071 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:38:25,511 INFO L? ?]: Removed 1741 outVars from TransFormulas that were not future-live. [2024-11-18 15:38:25,512 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:38:25,573 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:38:25,574 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-18 15:38:25,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:38:25 BoogieIcfgContainer [2024-11-18 15:38:25,574 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:38:25,576 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:38:25,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:38:25,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:38:25,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:38:15" (1/3) ... [2024-11-18 15:38:25,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b4bfdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:38:25, skipping insertion in model container [2024-11-18 15:38:25,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:17" (2/3) ... [2024-11-18 15:38:25,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b4bfdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:38:25, skipping insertion in model container [2024-11-18 15:38:25,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:38:25" (3/3) ... [2024-11-18 15:38:25,583 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.09.cil-2.c [2024-11-18 15:38:25,598 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:38:25,598 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 15:38:25,717 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:38:25,723 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;@16687737, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:38:25,723 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 15:38:25,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 2508 states, 2473 states have (on average 1.8439142741609382) internal successors, (4560), 2478 states have internal predecessors, (4560), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-18 15:38:25,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 15:38:25,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:38:25,763 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:38:25,768 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:38:25,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:38:25,776 INFO L85 PathProgramCache]: Analyzing trace with hash 273379068, now seen corresponding path program 1 times [2024-11-18 15:38:25,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:38:25,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149691574] [2024-11-18 15:38:25,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:38:25,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:38:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:38:26,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:38:26,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:38:26,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149691574] [2024-11-18 15:38:26,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149691574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:38:26,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:38:26,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:38:26,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899008131] [2024-11-18 15:38:26,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:38:26,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:38:26,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:38:26,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:38:26,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:38:26,504 INFO L87 Difference]: Start difference. First operand has 2508 states, 2473 states have (on average 1.8439142741609382) internal successors, (4560), 2478 states have internal predecessors, (4560), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:26,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:38:26,776 INFO L93 Difference]: Finished difference Result 5007 states and 9205 transitions. [2024-11-18 15:38:26,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:38:26,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (6), 2 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 146 [2024-11-18 15:38:26,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:38:26,825 INFO L225 Difference]: With dead ends: 5007 [2024-11-18 15:38:26,829 INFO L226 Difference]: Without dead ends: 2440 [2024-11-18 15:38:26,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:38:26,858 INFO L432 NwaCegarLoop]: 4519 mSDtfsCounter, 490 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 8541 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:38:26,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 8541 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:38:26,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2024-11-18 15:38:26,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2440. [2024-11-18 15:38:26,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2440 states, 2407 states have (on average 1.8292480265891151) internal successors, (4403), 2410 states have internal predecessors, (4403), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-18 15:38:26,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 4451 transitions. [2024-11-18 15:38:27,001 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 4451 transitions. Word has length 146 [2024-11-18 15:38:27,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:38:27,003 INFO L471 AbstractCegarLoop]: Abstraction has 2440 states and 4451 transitions. [2024-11-18 15:38:27,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:27,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 4451 transitions. [2024-11-18 15:38:27,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 15:38:27,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:38:27,008 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:38:27,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:38:27,009 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:38:27,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:38:27,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1125574534, now seen corresponding path program 1 times [2024-11-18 15:38:27,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:38:27,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764511232] [2024-11-18 15:38:27,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:38:27,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:38:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:38:27,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:38:27,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:38:27,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764511232] [2024-11-18 15:38:27,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764511232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:38:27,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:38:27,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:38:27,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323444971] [2024-11-18 15:38:27,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:38:27,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:38:27,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:38:27,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:38:27,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:38:27,276 INFO L87 Difference]: Start difference. First operand 2440 states and 4451 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:28,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:38:28,014 INFO L93 Difference]: Finished difference Result 3080 states and 5455 transitions. [2024-11-18 15:38:28,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:38:28,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (6), 3 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 146 [2024-11-18 15:38:28,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:38:28,030 INFO L225 Difference]: With dead ends: 3080 [2024-11-18 15:38:28,030 INFO L226 Difference]: Without dead ends: 2778 [2024-11-18 15:38:28,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:38:28,036 INFO L432 NwaCegarLoop]: 4383 mSDtfsCounter, 4877 mSDsluCounter, 8979 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4894 SdHoareTripleChecker+Valid, 13362 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:38:28,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4894 Valid, 13362 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:38:28,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2024-11-18 15:38:28,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 2753. [2024-11-18 15:38:28,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2753 states, 2695 states have (on average 1.8018552875695732) internal successors, (4856), 2699 states have internal predecessors, (4856), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2024-11-18 15:38:28,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2753 states to 2753 states and 4941 transitions. [2024-11-18 15:38:28,114 INFO L78 Accepts]: Start accepts. Automaton has 2753 states and 4941 transitions. Word has length 146 [2024-11-18 15:38:28,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:38:28,114 INFO L471 AbstractCegarLoop]: Abstraction has 2753 states and 4941 transitions. [2024-11-18 15:38:28,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:28,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2753 states and 4941 transitions. [2024-11-18 15:38:28,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 15:38:28,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:38:28,119 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:38:28,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:38:28,119 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:38:28,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:38:28,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1367927158, now seen corresponding path program 1 times [2024-11-18 15:38:28,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:38:28,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745486251] [2024-11-18 15:38:28,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:38:28,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:38:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:38:28,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:38:28,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:38:28,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745486251] [2024-11-18 15:38:28,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745486251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:38:28,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:38:28,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:38:28,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015098937] [2024-11-18 15:38:28,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:38:28,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:38:28,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:38:28,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:38:28,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:38:28,320 INFO L87 Difference]: Start difference. First operand 2753 states and 4941 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:29,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:38:29,158 INFO L93 Difference]: Finished difference Result 3765 states and 6544 transitions. [2024-11-18 15:38:29,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:38:29,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 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 146 [2024-11-18 15:38:29,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:38:29,178 INFO L225 Difference]: With dead ends: 3765 [2024-11-18 15:38:29,178 INFO L226 Difference]: Without dead ends: 3150 [2024-11-18 15:38:29,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:38:29,184 INFO L432 NwaCegarLoop]: 4613 mSDtfsCounter, 4880 mSDsluCounter, 13877 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4897 SdHoareTripleChecker+Valid, 18490 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:38:29,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4897 Valid, 18490 Invalid, 930 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:38:29,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2024-11-18 15:38:29,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 3045. [2024-11-18 15:38:29,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3045 states, 2962 states have (on average 1.7781904118838623) internal successors, (5267), 2967 states have internal predecessors, (5267), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (63), 60 states have call predecessors, (63), 59 states have call successors, (63) [2024-11-18 15:38:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 5391 transitions. [2024-11-18 15:38:29,273 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 5391 transitions. Word has length 146 [2024-11-18 15:38:29,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:38:29,275 INFO L471 AbstractCegarLoop]: Abstraction has 3045 states and 5391 transitions. [2024-11-18 15:38:29,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:29,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 5391 transitions. [2024-11-18 15:38:29,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 15:38:29,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:38:29,278 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:38:29,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:38:29,279 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:38:29,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:38:29,279 INFO L85 PathProgramCache]: Analyzing trace with hash 661330552, now seen corresponding path program 1 times [2024-11-18 15:38:29,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:38:29,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847869191] [2024-11-18 15:38:29,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:38:29,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:38:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:38:29,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:38:29,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:38:29,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847869191] [2024-11-18 15:38:29,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847869191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:38:29,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:38:29,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:38:29,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915268275] [2024-11-18 15:38:29,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:38:29,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:38:29,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:38:29,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:38:29,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:38:29,445 INFO L87 Difference]: Start difference. First operand 3045 states and 5391 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:30,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:38:30,349 INFO L93 Difference]: Finished difference Result 4685 states and 7981 transitions. [2024-11-18 15:38:30,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:38:30,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 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 146 [2024-11-18 15:38:30,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:38:30,375 INFO L225 Difference]: With dead ends: 4685 [2024-11-18 15:38:30,379 INFO L226 Difference]: Without dead ends: 3778 [2024-11-18 15:38:30,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:38:30,388 INFO L432 NwaCegarLoop]: 4605 mSDtfsCounter, 4872 mSDsluCounter, 13855 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4889 SdHoareTripleChecker+Valid, 18460 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:38:30,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4889 Valid, 18460 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:38:30,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3778 states. [2024-11-18 15:38:30,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3778 to 3663. [2024-11-18 15:38:30,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3663 states, 3528 states have (on average 1.7431972789115646) internal successors, (6150), 3537 states have internal predecessors, (6150), 97 states have call successors, (97), 31 states have call predecessors, (97), 36 states have return successors, (111), 98 states have call predecessors, (111), 95 states have call successors, (111) [2024-11-18 15:38:30,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3663 states to 3663 states and 6358 transitions. [2024-11-18 15:38:30,612 INFO L78 Accepts]: Start accepts. Automaton has 3663 states and 6358 transitions. Word has length 146 [2024-11-18 15:38:30,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:38:30,612 INFO L471 AbstractCegarLoop]: Abstraction has 3663 states and 6358 transitions. [2024-11-18 15:38:30,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:30,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3663 states and 6358 transitions. [2024-11-18 15:38:30,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 15:38:30,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:38:30,620 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:38:30,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:38:30,620 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:38:30,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:38:30,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1523164154, now seen corresponding path program 1 times [2024-11-18 15:38:30,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:38:30,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200806899] [2024-11-18 15:38:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:38:30,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:38:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:38:30,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:38:30,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:38:30,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200806899] [2024-11-18 15:38:30,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200806899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:38:30,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:38:30,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:38:30,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154846759] [2024-11-18 15:38:30,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:38:30,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:38:30,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:38:30,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:38:30,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:38:30,804 INFO L87 Difference]: Start difference. First operand 3663 states and 6358 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:31,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:38:31,461 INFO L93 Difference]: Finished difference Result 6667 states and 11142 transitions. [2024-11-18 15:38:31,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:38:31,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 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 146 [2024-11-18 15:38:31,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:38:31,482 INFO L225 Difference]: With dead ends: 6667 [2024-11-18 15:38:31,483 INFO L226 Difference]: Without dead ends: 5142 [2024-11-18 15:38:31,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:38:31,490 INFO L432 NwaCegarLoop]: 4602 mSDtfsCounter, 4867 mSDsluCounter, 13846 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 18448 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:38:31,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4884 Valid, 18448 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:38:31,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5142 states. [2024-11-18 15:38:31,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5142 to 4998. [2024-11-18 15:38:31,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4998 states, 4753 states have (on average 1.7029244687565748) internal successors, (8094), 4776 states have internal predecessors, (8094), 169 states have call successors, (169), 55 states have call predecessors, (169), 74 states have return successors, (231), 174 states have call predecessors, (231), 167 states have call successors, (231) [2024-11-18 15:38:31,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4998 states to 4998 states and 8494 transitions. [2024-11-18 15:38:31,630 INFO L78 Accepts]: Start accepts. Automaton has 4998 states and 8494 transitions. Word has length 146 [2024-11-18 15:38:31,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:38:31,630 INFO L471 AbstractCegarLoop]: Abstraction has 4998 states and 8494 transitions. [2024-11-18 15:38:31,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:31,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4998 states and 8494 transitions. [2024-11-18 15:38:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 15:38:31,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:38:31,634 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:38:31,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:38:31,634 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:38:31,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:38:31,635 INFO L85 PathProgramCache]: Analyzing trace with hash -527244744, now seen corresponding path program 1 times [2024-11-18 15:38:31,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:38:31,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319823430] [2024-11-18 15:38:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:38:31,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:38:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:38:31,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:38:31,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:38:31,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319823430] [2024-11-18 15:38:31,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319823430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:38:31,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:38:31,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:38:31,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879633699] [2024-11-18 15:38:31,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:38:31,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:38:31,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:38:31,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:38:31,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:38:31,781 INFO L87 Difference]: Start difference. First operand 4998 states and 8494 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:32,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:38:32,513 INFO L93 Difference]: Finished difference Result 11008 states and 18260 transitions. [2024-11-18 15:38:32,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:38:32,513 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 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 146 [2024-11-18 15:38:32,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:38:32,557 INFO L225 Difference]: With dead ends: 11008 [2024-11-18 15:38:32,560 INFO L226 Difference]: Without dead ends: 8148 [2024-11-18 15:38:32,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:38:32,573 INFO L432 NwaCegarLoop]: 4599 mSDtfsCounter, 4862 mSDsluCounter, 13837 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4879 SdHoareTripleChecker+Valid, 18436 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:38:32,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4879 Valid, 18436 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:38:32,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8148 states. [2024-11-18 15:38:32,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8148 to 7947. [2024-11-18 15:38:32,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7947 states, 7464 states have (on average 1.672293676312969) internal successors, (12482), 7533 states have internal predecessors, (12482), 313 states have call successors, (313), 103 states have call predecessors, (313), 168 states have return successors, (567), 326 states have call predecessors, (567), 311 states have call successors, (567) [2024-11-18 15:38:32,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7947 states to 7947 states and 13362 transitions. [2024-11-18 15:38:32,856 INFO L78 Accepts]: Start accepts. Automaton has 7947 states and 13362 transitions. Word has length 146 [2024-11-18 15:38:32,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:38:32,857 INFO L471 AbstractCegarLoop]: Abstraction has 7947 states and 13362 transitions. [2024-11-18 15:38:32,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:32,858 INFO L276 IsEmpty]: Start isEmpty. Operand 7947 states and 13362 transitions. [2024-11-18 15:38:32,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 15:38:32,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:38:32,862 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:38:32,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:38:32,863 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:38:32,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:38:32,863 INFO L85 PathProgramCache]: Analyzing trace with hash -39197638, now seen corresponding path program 1 times [2024-11-18 15:38:32,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:38:32,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064443850] [2024-11-18 15:38:32,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:38:32,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:38:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:38:32,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:38:32,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:38:32,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064443850] [2024-11-18 15:38:32,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064443850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:38:32,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:38:32,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:38:32,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944585655] [2024-11-18 15:38:32,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:38:32,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:38:32,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:38:32,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:38:32,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:38:32,989 INFO L87 Difference]: Start difference. First operand 7947 states and 13362 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:33,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:38:33,703 INFO L93 Difference]: Finished difference Result 20747 states and 34862 transitions. [2024-11-18 15:38:33,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:38:33,704 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 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 146 [2024-11-18 15:38:33,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:38:33,754 INFO L225 Difference]: With dead ends: 20747 [2024-11-18 15:38:33,754 INFO L226 Difference]: Without dead ends: 14938 [2024-11-18 15:38:33,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:38:33,782 INFO L432 NwaCegarLoop]: 4366 mSDtfsCounter, 4890 mSDsluCounter, 13277 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4907 SdHoareTripleChecker+Valid, 17643 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:38:33,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4907 Valid, 17643 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:38:33,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14938 states. [2024-11-18 15:38:34,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14938 to 14628. [2024-11-18 15:38:34,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14628 states, 13615 states have (on average 1.6639001101726036) internal successors, (22654), 13830 states have internal predecessors, (22654), 601 states have call successors, (601), 199 states have call predecessors, (601), 410 states have return successors, (1623), 630 states have call predecessors, (1623), 599 states have call successors, (1623) [2024-11-18 15:38:34,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14628 states to 14628 states and 24878 transitions. [2024-11-18 15:38:34,429 INFO L78 Accepts]: Start accepts. Automaton has 14628 states and 24878 transitions. Word has length 146 [2024-11-18 15:38:34,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:38:34,430 INFO L471 AbstractCegarLoop]: Abstraction has 14628 states and 24878 transitions. [2024-11-18 15:38:34,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:34,430 INFO L276 IsEmpty]: Start isEmpty. Operand 14628 states and 24878 transitions. [2024-11-18 15:38:34,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 15:38:34,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:38:34,438 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:38:34,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:38:34,439 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:38:34,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:38:34,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1131832840, now seen corresponding path program 1 times [2024-11-18 15:38:34,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:38:34,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333400854] [2024-11-18 15:38:34,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:38:34,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:38:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:38:34,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:38:34,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:38:34,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333400854] [2024-11-18 15:38:34,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333400854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:38:34,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:38:34,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:38:34,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131999865] [2024-11-18 15:38:34,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:38:34,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:38:34,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:38:34,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:38:34,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:38:34,595 INFO L87 Difference]: Start difference. First operand 14628 states and 24878 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:35,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:38:35,361 INFO L93 Difference]: Finished difference Result 30548 states and 52987 transitions. [2024-11-18 15:38:35,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 15:38:35,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 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 146 [2024-11-18 15:38:35,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:38:35,435 INFO L225 Difference]: With dead ends: 30548 [2024-11-18 15:38:35,435 INFO L226 Difference]: Without dead ends: 18058 [2024-11-18 15:38:35,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:38:35,485 INFO L432 NwaCegarLoop]: 4321 mSDtfsCounter, 4610 mSDsluCounter, 8513 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4627 SdHoareTripleChecker+Valid, 12834 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:38:35,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4627 Valid, 12834 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:38:35,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18058 states. [2024-11-18 15:38:36,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18058 to 14628. [2024-11-18 15:38:36,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14628 states, 13615 states have (on average 1.6614763128901946) internal successors, (22621), 13830 states have internal predecessors, (22621), 601 states have call successors, (601), 199 states have call predecessors, (601), 410 states have return successors, (1623), 630 states have call predecessors, (1623), 599 states have call successors, (1623) [2024-11-18 15:38:36,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14628 states to 14628 states and 24845 transitions. [2024-11-18 15:38:36,249 INFO L78 Accepts]: Start accepts. Automaton has 14628 states and 24845 transitions. Word has length 146 [2024-11-18 15:38:36,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:38:36,251 INFO L471 AbstractCegarLoop]: Abstraction has 14628 states and 24845 transitions. [2024-11-18 15:38:36,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:36,251 INFO L276 IsEmpty]: Start isEmpty. Operand 14628 states and 24845 transitions. [2024-11-18 15:38:36,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 15:38:36,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:38:36,258 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:38:36,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:38:36,259 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:38:36,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:38:36,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1880962170, now seen corresponding path program 1 times [2024-11-18 15:38:36,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:38:36,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902546617] [2024-11-18 15:38:36,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:38:36,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:38:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:38:36,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:38:36,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:38:36,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902546617] [2024-11-18 15:38:36,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902546617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:38:36,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:38:36,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:38:36,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576173833] [2024-11-18 15:38:36,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:38:36,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:38:36,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:38:36,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:38:36,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:38:36,371 INFO L87 Difference]: Start difference. First operand 14628 states and 24845 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:37,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:38:37,544 INFO L93 Difference]: Finished difference Result 42904 states and 74573 transitions. [2024-11-18 15:38:37,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:38:37,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 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 146 [2024-11-18 15:38:37,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:38:37,686 INFO L225 Difference]: With dead ends: 42904 [2024-11-18 15:38:37,686 INFO L226 Difference]: Without dead ends: 30414 [2024-11-18 15:38:37,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:38:37,728 INFO L432 NwaCegarLoop]: 4588 mSDtfsCounter, 4844 mSDsluCounter, 13805 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4861 SdHoareTripleChecker+Valid, 18393 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:38:37,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4861 Valid, 18393 Invalid, 930 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:38:37,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30414 states. [2024-11-18 15:38:38,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30414 to 29934. [2024-11-18 15:38:38,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29934 states, 27699 states have (on average 1.6722264341672985) internal successors, (46319), 28368 states have internal predecessors, (46319), 1177 states have call successors, (1177), 391 states have call predecessors, (1177), 1056 states have return successors, (5271), 1238 states have call predecessors, (5271), 1175 states have call successors, (5271) [2024-11-18 15:38:38,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29934 states to 29934 states and 52767 transitions. [2024-11-18 15:38:38,807 INFO L78 Accepts]: Start accepts. Automaton has 29934 states and 52767 transitions. Word has length 146 [2024-11-18 15:38:38,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:38:38,808 INFO L471 AbstractCegarLoop]: Abstraction has 29934 states and 52767 transitions. [2024-11-18 15:38:38,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:38,808 INFO L276 IsEmpty]: Start isEmpty. Operand 29934 states and 52767 transitions. [2024-11-18 15:38:38,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 15:38:38,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:38:38,823 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:38:38,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:38:38,823 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:38:38,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:38:38,824 INFO L85 PathProgramCache]: Analyzing trace with hash 38486456, now seen corresponding path program 1 times [2024-11-18 15:38:38,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:38:38,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792856088] [2024-11-18 15:38:38,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:38:38,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:38:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:38:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:38:38,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:38:38,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792856088] [2024-11-18 15:38:38,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792856088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:38:38,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:38:38,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:38:38,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268219041] [2024-11-18 15:38:38,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:38:38,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:38:38,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:38:38,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:38:38,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:38:38,971 INFO L87 Difference]: Start difference. First operand 29934 states and 52767 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:41,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:38:41,234 INFO L93 Difference]: Finished difference Result 94760 states and 174869 transitions. [2024-11-18 15:38:41,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:38:41,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 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 146 [2024-11-18 15:38:41,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:38:41,604 INFO L225 Difference]: With dead ends: 94760 [2024-11-18 15:38:41,604 INFO L226 Difference]: Without dead ends: 66964 [2024-11-18 15:38:41,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:38:41,705 INFO L432 NwaCegarLoop]: 4585 mSDtfsCounter, 4839 mSDsluCounter, 13796 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4856 SdHoareTripleChecker+Valid, 18381 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:38:41,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4856 Valid, 18381 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:38:41,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66964 states. [2024-11-18 15:38:44,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66964 to 66135. [2024-11-18 15:38:44,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66135 states, 60970 states have (on average 1.6959652288010496) internal successors, (103403), 63033 states have internal predecessors, (103403), 2329 states have call successors, (2329), 775 states have call predecessors, (2329), 2834 states have return successors, (18711), 2454 states have call predecessors, (18711), 2327 states have call successors, (18711) [2024-11-18 15:38:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66135 states to 66135 states and 124443 transitions. [2024-11-18 15:38:44,780 INFO L78 Accepts]: Start accepts. Automaton has 66135 states and 124443 transitions. Word has length 146 [2024-11-18 15:38:44,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:38:44,781 INFO L471 AbstractCegarLoop]: Abstraction has 66135 states and 124443 transitions. [2024-11-18 15:38:44,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:44,781 INFO L276 IsEmpty]: Start isEmpty. Operand 66135 states and 124443 transitions. [2024-11-18 15:38:44,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 15:38:44,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:38:44,813 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:38:44,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:38:44,813 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:38:44,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:38:44,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1683516230, now seen corresponding path program 1 times [2024-11-18 15:38:44,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:38:44,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443465663] [2024-11-18 15:38:44,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:38:44,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:38:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:38:45,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:38:45,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:38:45,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443465663] [2024-11-18 15:38:45,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443465663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:38:45,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:38:45,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:38:45,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521249039] [2024-11-18 15:38:45,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:38:45,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:38:45,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:38:45,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:38:45,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:38:45,131 INFO L87 Difference]: Start difference. First operand 66135 states and 124443 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:38:50,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:38:50,134 INFO L93 Difference]: Finished difference Result 224671 states and 449196 transitions. [2024-11-18 15:38:50,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:38:50,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 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 146 [2024-11-18 15:38:50,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:38:51,261 INFO L225 Difference]: With dead ends: 224671 [2024-11-18 15:38:51,261 INFO L226 Difference]: Without dead ends: 160674 [2024-11-18 15:38:51,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:38:51,551 INFO L432 NwaCegarLoop]: 4575 mSDtfsCounter, 4913 mSDsluCounter, 13763 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4929 SdHoareTripleChecker+Valid, 18338 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:38:51,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4929 Valid, 18338 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:38:51,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160674 states. [2024-11-18 15:38:59,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160674 to 149995. [2024-11-18 15:38:59,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149995 states, 137640 states have (on average 1.7205536181342633) internal successors, (236817), 143949 states have internal predecessors, (236817), 4505 states have call successors, (4505), 1543 states have call predecessors, (4505), 7848 states have return successors, (70039), 4758 states have call predecessors, (70039), 4503 states have call successors, (70039) [2024-11-18 15:39:00,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149995 states to 149995 states and 311361 transitions. [2024-11-18 15:39:00,693 INFO L78 Accepts]: Start accepts. Automaton has 149995 states and 311361 transitions. Word has length 146 [2024-11-18 15:39:00,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:39:00,694 INFO L471 AbstractCegarLoop]: Abstraction has 149995 states and 311361 transitions. [2024-11-18 15:39:00,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:39:00,694 INFO L276 IsEmpty]: Start isEmpty. Operand 149995 states and 311361 transitions. [2024-11-18 15:39:00,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 15:39:00,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:39:00,734 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:39:00,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:39:00,735 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:39:00,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:39:00,735 INFO L85 PathProgramCache]: Analyzing trace with hash 245415996, now seen corresponding path program 1 times [2024-11-18 15:39:00,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:39:00,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458500740] [2024-11-18 15:39:00,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:39:00,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:39:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:39:00,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:39:00,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:39:00,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458500740] [2024-11-18 15:39:00,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458500740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:39:00,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:39:00,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:39:00,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952752724] [2024-11-18 15:39:00,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:39:00,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:39:00,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:39:00,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:39:00,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:39:00,851 INFO L87 Difference]: Start difference. First operand 149995 states and 311361 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)