./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.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_label46+token_ring.14.cil.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 b4ef8e9ed2cd06e3f1b2681e4efb1f48663612c7770f819d08e3f1f515d36787 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:40:43,260 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:40:43,333 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:40:43,337 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:40:43,338 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:40:43,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:40:43,371 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:40:43,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:40:43,372 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:40:43,373 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:40:43,373 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:40:43,374 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:40:43,374 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:40:43,376 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:40:43,377 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:40:43,377 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:40:43,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:40:43,378 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:40:43,378 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:40:43,378 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:40:43,378 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:40:43,380 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:40:43,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:40:43,381 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:40:43,382 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:40:43,382 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:40:43,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:40:43,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:40:43,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:40:43,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:40:43,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:40:43,385 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:40:43,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:40:43,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:40:43,386 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:40:43,386 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:40:43,387 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:40:43,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:40:43,387 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:40:43,388 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:40:43,388 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:40:43,388 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:40:43,389 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4ef8e9ed2cd06e3f1b2681e4efb1f48663612c7770f819d08e3f1f515d36787 [2024-11-18 15:40:43,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:40:43,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:40:43,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:40:43,670 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:40:43,671 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:40:43,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c [2024-11-18 15:40:45,075 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:40:45,709 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:40:45,710 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c [2024-11-18 15:40:45,756 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e22cb07f/37d4ab14e4e64cbea1e82f78e2ec734b/FLAGc7814cb2b [2024-11-18 15:40:45,771 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e22cb07f/37d4ab14e4e64cbea1e82f78e2ec734b [2024-11-18 15:40:45,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:40:45,775 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:40:45,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:40:45,777 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:40:45,782 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:40:45,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:40:45" (1/1) ... [2024-11-18 15:40:45,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c707921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:45, skipping insertion in model container [2024-11-18 15:40:45,784 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:40:45" (1/1) ... [2024-11-18 15:40:45,967 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:40:47,756 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c[382357,382370] [2024-11-18 15:40:47,787 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c[383339,383352] [2024-11-18 15:40:48,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:40:48,123 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:40:48,884 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c[382357,382370] [2024-11-18 15:40:48,889 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c[383339,383352] [2024-11-18 15:40:48,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:40:48,985 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:40:48,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:48 WrapperNode [2024-11-18 15:40:48,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:40:48,986 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:40:48,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:40:48,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:40:48,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:48" (1/1) ... [2024-11-18 15:40:49,103 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:48" (1/1) ... [2024-11-18 15:40:49,494 INFO L138 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 13237 [2024-11-18 15:40:49,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:40:49,496 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:40:49,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:40:49,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:40:49,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:48" (1/1) ... [2024-11-18 15:40:49,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:48" (1/1) ... [2024-11-18 15:40:49,560 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:48" (1/1) ... [2024-11-18 15:40:49,703 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 15:40:49,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:48" (1/1) ... [2024-11-18 15:40:49,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:48" (1/1) ... [2024-11-18 15:40:50,069 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:48" (1/1) ... [2024-11-18 15:40:50,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:48" (1/1) ... [2024-11-18 15:40:50,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:48" (1/1) ... [2024-11-18 15:40:50,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:48" (1/1) ... [2024-11-18 15:40:50,229 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:40:50,230 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:40:50,231 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:40:50,231 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:40:50,232 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:48" (1/1) ... [2024-11-18 15:40:50,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:40:50,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:40:50,266 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 15:40:50,268 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 15:40:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:40:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-18 15:40:50,310 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-18 15:40:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 15:40:50,311 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 15:40:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-18 15:40:50,311 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-18 15:40:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-18 15:40:50,312 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-18 15:40:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-18 15:40:50,312 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-18 15:40:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-18 15:40:50,312 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-18 15:40:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-18 15:40:50,312 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-18 15:40:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:40:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:40:50,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:40:50,445 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:40:50,446 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:40:58,560 INFO L? ?]: Removed 1759 outVars from TransFormulas that were not future-live. [2024-11-18 15:40:58,561 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:40:58,635 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:40:58,636 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-18 15:40:58,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:40:58 BoogieIcfgContainer [2024-11-18 15:40:58,637 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:40:58,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:40:58,639 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:40:58,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:40:58,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:40:45" (1/3) ... [2024-11-18 15:40:58,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d56702c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:40:58, skipping insertion in model container [2024-11-18 15:40:58,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:48" (2/3) ... [2024-11-18 15:40:58,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d56702c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:40:58, skipping insertion in model container [2024-11-18 15:40:58,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:40:58" (3/3) ... [2024-11-18 15:40:58,647 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.14.cil.c [2024-11-18 15:40:58,664 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:40:58,664 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 15:40:58,790 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:40:58,798 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;@2254de4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:40:58,799 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 15:40:58,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 2584 states, 2546 states have (on average 1.8389630793401415) internal successors, (4682), 2551 states have internal predecessors, (4682), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-18 15:40:58,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 15:40:58,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:40:58,842 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:40:58,843 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:40:58,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:40:58,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1563326470, now seen corresponding path program 1 times [2024-11-18 15:40:58,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:40:58,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824148650] [2024-11-18 15:40:58,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:40:58,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:40:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:40:59,283 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 15:40:59,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:40:59,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824148650] [2024-11-18 15:40:59,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824148650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:40:59,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:40:59,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:40:59,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563945287] [2024-11-18 15:40:59,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:40:59,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:40:59,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:40:59,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:40:59,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:40:59,327 INFO L87 Difference]: Start difference. First operand has 2584 states, 2546 states have (on average 1.8389630793401415) internal successors, (4682), 2551 states have internal predecessors, (4682), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 15:40:59,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:40:59,530 INFO L93 Difference]: Finished difference Result 5161 states and 9465 transitions. [2024-11-18 15:40:59,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:40:59,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 179 [2024-11-18 15:40:59,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:40:59,561 INFO L225 Difference]: With dead ends: 5161 [2024-11-18 15:40:59,561 INFO L226 Difference]: Without dead ends: 2516 [2024-11-18 15:40:59,569 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 15:40:59,572 INFO L432 NwaCegarLoop]: 4641 mSDtfsCounter, 614 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 8663 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:40:59,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 8663 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:40:59,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2516 states. [2024-11-18 15:40:59,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2516 to 2516. [2024-11-18 15:40:59,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2516 states, 2480 states have (on average 1.8221774193548388) internal successors, (4519), 2483 states have internal predecessors, (4519), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-18 15:40:59,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 4573 transitions. [2024-11-18 15:40:59,730 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 4573 transitions. Word has length 179 [2024-11-18 15:40:59,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:40:59,731 INFO L471 AbstractCegarLoop]: Abstraction has 2516 states and 4573 transitions. [2024-11-18 15:40:59,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 15:40:59,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 4573 transitions. [2024-11-18 15:40:59,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 15:40:59,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:40:59,744 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:40:59,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:40:59,746 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:40:59,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:40:59,747 INFO L85 PathProgramCache]: Analyzing trace with hash -60228164, now seen corresponding path program 1 times [2024-11-18 15:40:59,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:40:59,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157937771] [2024-11-18 15:40:59,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:40:59,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:40:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:40:59,914 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 15:40:59,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:40:59,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157937771] [2024-11-18 15:40:59,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157937771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:40:59,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:40:59,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:40:59,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472171085] [2024-11-18 15:40:59,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:40:59,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:40:59,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:40:59,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:40:59,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:40:59,925 INFO L87 Difference]: Start difference. First operand 2516 states and 4573 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 15:41:00,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:00,013 INFO L93 Difference]: Finished difference Result 2896 states and 5163 transitions. [2024-11-18 15:41:00,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:41:00,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 179 [2024-11-18 15:41:00,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:00,027 INFO L225 Difference]: With dead ends: 2896 [2024-11-18 15:41:00,027 INFO L226 Difference]: Without dead ends: 2516 [2024-11-18 15:41:00,030 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 15:41:00,032 INFO L432 NwaCegarLoop]: 4571 mSDtfsCounter, 600 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 8529 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:00,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 8529 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:41:00,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2516 states. [2024-11-18 15:41:00,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2516 to 2516. [2024-11-18 15:41:00,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2516 states, 2480 states have (on average 1.821774193548387) internal successors, (4518), 2483 states have internal predecessors, (4518), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-18 15:41:00,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 4572 transitions. [2024-11-18 15:41:00,103 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 4572 transitions. Word has length 179 [2024-11-18 15:41:00,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:00,105 INFO L471 AbstractCegarLoop]: Abstraction has 2516 states and 4572 transitions. [2024-11-18 15:41:00,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 15:41:00,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 4572 transitions. [2024-11-18 15:41:00,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 15:41:00,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:00,109 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:00,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:41:00,112 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:00,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:00,112 INFO L85 PathProgramCache]: Analyzing trace with hash -630499970, now seen corresponding path program 1 times [2024-11-18 15:41:00,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:00,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039713461] [2024-11-18 15:41:00,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:00,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:00,442 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 15:41:00,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:00,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039713461] [2024-11-18 15:41:00,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039713461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:00,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:00,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:41:00,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029131346] [2024-11-18 15:41:00,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:00,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:41:00,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:00,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:41:00,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:41:00,450 INFO L87 Difference]: Start difference. First operand 2516 states and 4572 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 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 15:41:01,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:01,275 INFO L93 Difference]: Finished difference Result 3314 states and 5832 transitions. [2024-11-18 15:41:01,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:41:01,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 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 179 [2024-11-18 15:41:01,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:01,295 INFO L225 Difference]: With dead ends: 3314 [2024-11-18 15:41:01,295 INFO L226 Difference]: Without dead ends: 2939 [2024-11-18 15:41:01,298 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 15:41:01,302 INFO L432 NwaCegarLoop]: 4438 mSDtfsCounter, 5130 mSDsluCounter, 9148 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5150 SdHoareTripleChecker+Valid, 13586 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:01,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5150 Valid, 13586 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:41:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2024-11-18 15:41:01,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 2908. [2024-11-18 15:41:01,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2844 states have (on average 1.7907876230661042) internal successors, (5093), 2848 states have internal predecessors, (5093), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2024-11-18 15:41:01,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 5190 transitions. [2024-11-18 15:41:01,525 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 5190 transitions. Word has length 179 [2024-11-18 15:41:01,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:01,526 INFO L471 AbstractCegarLoop]: Abstraction has 2908 states and 5190 transitions. [2024-11-18 15:41:01,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 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 15:41:01,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 5190 transitions. [2024-11-18 15:41:01,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 15:41:01,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:01,529 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:01,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:41:01,530 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:01,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:01,530 INFO L85 PathProgramCache]: Analyzing trace with hash -2016239750, now seen corresponding path program 1 times [2024-11-18 15:41:01,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:01,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309937444] [2024-11-18 15:41:01,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:01,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:01,780 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 15:41:01,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:01,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309937444] [2024-11-18 15:41:01,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309937444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:01,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:01,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:41:01,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742546927] [2024-11-18 15:41:01,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:01,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:41:01,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:01,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:41:01,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:01,786 INFO L87 Difference]: Start difference. First operand 2908 states and 5190 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:02,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:02,779 INFO L93 Difference]: Finished difference Result 4175 states and 7213 transitions. [2024-11-18 15:41:02,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:41:02,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-18 15:41:02,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:02,795 INFO L225 Difference]: With dead ends: 4175 [2024-11-18 15:41:02,796 INFO L226 Difference]: Without dead ends: 3408 [2024-11-18 15:41:02,800 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 15:41:02,804 INFO L432 NwaCegarLoop]: 4775 mSDtfsCounter, 5139 mSDsluCounter, 14389 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5159 SdHoareTripleChecker+Valid, 19164 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:02,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5159 Valid, 19164 Invalid, 1131 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:41:02,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3408 states. [2024-11-18 15:41:02,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3408 to 3273. [2024-11-18 15:41:02,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3273 states, 3181 states have (on average 1.7648538195535994) internal successors, (5614), 3186 states have internal predecessors, (5614), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (72), 69 states have call predecessors, (72), 68 states have call successors, (72) [2024-11-18 15:41:02,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3273 states to 3273 states and 5756 transitions. [2024-11-18 15:41:02,903 INFO L78 Accepts]: Start accepts. Automaton has 3273 states and 5756 transitions. Word has length 179 [2024-11-18 15:41:02,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:02,904 INFO L471 AbstractCegarLoop]: Abstraction has 3273 states and 5756 transitions. [2024-11-18 15:41:02,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:02,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3273 states and 5756 transitions. [2024-11-18 15:41:02,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 15:41:02,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:02,909 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:02,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:41:02,909 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:02,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:02,909 INFO L85 PathProgramCache]: Analyzing trace with hash 509255932, now seen corresponding path program 1 times [2024-11-18 15:41:02,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:02,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127106650] [2024-11-18 15:41:02,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:02,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:03,123 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 15:41:03,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:03,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127106650] [2024-11-18 15:41:03,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127106650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:03,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:03,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:41:03,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594510680] [2024-11-18 15:41:03,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:03,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:41:03,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:03,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:41:03,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:03,126 INFO L87 Difference]: Start difference. First operand 3273 states and 5756 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:04,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:04,014 INFO L93 Difference]: Finished difference Result 5340 states and 9050 transitions. [2024-11-18 15:41:04,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:41:04,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-18 15:41:04,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:04,034 INFO L225 Difference]: With dead ends: 5340 [2024-11-18 15:41:04,034 INFO L226 Difference]: Without dead ends: 4208 [2024-11-18 15:41:04,039 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 15:41:04,040 INFO L432 NwaCegarLoop]: 4480 mSDtfsCounter, 5167 mSDsluCounter, 13675 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5187 SdHoareTripleChecker+Valid, 18155 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:04,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5187 Valid, 18155 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:41:04,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4208 states. [2024-11-18 15:41:04,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4208 to 4052. [2024-11-18 15:41:04,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4052 states, 3902 states have (on average 1.7291132752434648) internal successors, (6747), 3911 states have internal predecessors, (6747), 112 states have call successors, (112), 31 states have call predecessors, (112), 36 states have return successors, (126), 113 states have call predecessors, (126), 110 states have call successors, (126) [2024-11-18 15:41:04,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4052 states to 4052 states and 6985 transitions. [2024-11-18 15:41:04,170 INFO L78 Accepts]: Start accepts. Automaton has 4052 states and 6985 transitions. Word has length 179 [2024-11-18 15:41:04,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:04,170 INFO L471 AbstractCegarLoop]: Abstraction has 4052 states and 6985 transitions. [2024-11-18 15:41:04,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:04,171 INFO L276 IsEmpty]: Start isEmpty. Operand 4052 states and 6985 transitions. [2024-11-18 15:41:04,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 15:41:04,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:04,174 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:04,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:41:04,175 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:04,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:04,176 INFO L85 PathProgramCache]: Analyzing trace with hash -102013126, now seen corresponding path program 1 times [2024-11-18 15:41:04,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:04,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460552898] [2024-11-18 15:41:04,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:04,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:04,359 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 15:41:04,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:04,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460552898] [2024-11-18 15:41:04,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460552898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:04,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:04,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:41:04,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065439821] [2024-11-18 15:41:04,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:04,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:41:04,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:04,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:41:04,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:04,365 INFO L87 Difference]: Start difference. First operand 4052 states and 6985 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:05,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:05,408 INFO L93 Difference]: Finished difference Result 7861 states and 13109 transitions. [2024-11-18 15:41:05,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:41:05,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-18 15:41:05,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:05,440 INFO L225 Difference]: With dead ends: 7861 [2024-11-18 15:41:05,441 INFO L226 Difference]: Without dead ends: 5950 [2024-11-18 15:41:05,450 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 15:41:05,453 INFO L432 NwaCegarLoop]: 4768 mSDtfsCounter, 5129 mSDsluCounter, 14368 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5149 SdHoareTripleChecker+Valid, 19136 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:05,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5149 Valid, 19136 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:41:05,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2024-11-18 15:41:05,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 5751. [2024-11-18 15:41:05,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5751 states, 5479 states have (on average 1.6928271582405547) internal successors, (9275), 5502 states have internal predecessors, (9275), 196 states have call successors, (196), 55 states have call predecessors, (196), 74 states have return successors, (258), 201 states have call predecessors, (258), 194 states have call successors, (258) [2024-11-18 15:41:05,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 9729 transitions. [2024-11-18 15:41:05,676 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 9729 transitions. Word has length 179 [2024-11-18 15:41:05,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:05,676 INFO L471 AbstractCegarLoop]: Abstraction has 5751 states and 9729 transitions. [2024-11-18 15:41:05,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:05,678 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 9729 transitions. [2024-11-18 15:41:05,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 15:41:05,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:05,682 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:05,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:41:05,682 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:05,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:05,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1507204804, now seen corresponding path program 1 times [2024-11-18 15:41:05,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:05,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436206423] [2024-11-18 15:41:05,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:05,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:05,856 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 15:41:05,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:05,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436206423] [2024-11-18 15:41:05,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436206423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:05,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:05,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:41:05,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997272566] [2024-11-18 15:41:05,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:05,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:41:05,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:05,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:41:05,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:05,859 INFO L87 Difference]: Start difference. First operand 5751 states and 9729 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:06,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:06,898 INFO L93 Difference]: Finished difference Result 13410 states and 22283 transitions. [2024-11-18 15:41:06,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:41:06,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-18 15:41:06,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:06,961 INFO L225 Difference]: With dead ends: 13410 [2024-11-18 15:41:06,962 INFO L226 Difference]: Without dead ends: 9800 [2024-11-18 15:41:06,979 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 15:41:06,982 INFO L432 NwaCegarLoop]: 4761 mSDtfsCounter, 5121 mSDsluCounter, 14349 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5141 SdHoareTripleChecker+Valid, 19110 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:06,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5141 Valid, 19110 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:41:06,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9800 states. [2024-11-18 15:41:07,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9800 to 9527. [2024-11-18 15:41:07,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9527 states, 8993 states have (on average 1.6711887023240297) internal successors, (15029), 9062 states have internal predecessors, (15029), 364 states have call successors, (364), 103 states have call predecessors, (364), 168 states have return successors, (618), 377 states have call predecessors, (618), 362 states have call successors, (618) [2024-11-18 15:41:07,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9527 states to 9527 states and 16011 transitions. [2024-11-18 15:41:07,488 INFO L78 Accepts]: Start accepts. Automaton has 9527 states and 16011 transitions. Word has length 179 [2024-11-18 15:41:07,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:07,488 INFO L471 AbstractCegarLoop]: Abstraction has 9527 states and 16011 transitions. [2024-11-18 15:41:07,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:07,489 INFO L276 IsEmpty]: Start isEmpty. Operand 9527 states and 16011 transitions. [2024-11-18 15:41:07,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 15:41:07,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:07,496 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:07,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:41:07,496 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:07,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:07,497 INFO L85 PathProgramCache]: Analyzing trace with hash -60623938, now seen corresponding path program 1 times [2024-11-18 15:41:07,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:07,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601424765] [2024-11-18 15:41:07,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:07,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:07,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:41:07,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:07,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601424765] [2024-11-18 15:41:07,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601424765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:07,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:07,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:41:07,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118158276] [2024-11-18 15:41:07,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:07,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:41:07,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:07,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:41:07,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:07,719 INFO L87 Difference]: Start difference. First operand 9527 states and 16011 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:08,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:08,903 INFO L93 Difference]: Finished difference Result 26002 states and 43871 transitions. [2024-11-18 15:41:08,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:41:08,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-18 15:41:08,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:08,988 INFO L225 Difference]: With dead ends: 26002 [2024-11-18 15:41:08,988 INFO L226 Difference]: Without dead ends: 18616 [2024-11-18 15:41:09,027 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 15:41:09,028 INFO L432 NwaCegarLoop]: 4758 mSDtfsCounter, 5116 mSDsluCounter, 14340 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5136 SdHoareTripleChecker+Valid, 19098 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:09,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5136 Valid, 19098 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:41:09,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18616 states. [2024-11-18 15:41:09,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18616 to 18186. [2024-11-18 15:41:09,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18186 states, 17074 states have (on average 1.673948693920581) internal successors, (28581), 17289 states have internal predecessors, (28581), 700 states have call successors, (700), 199 states have call predecessors, (700), 410 states have return successors, (1722), 729 states have call predecessors, (1722), 698 states have call successors, (1722) [2024-11-18 15:41:09,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18186 states to 18186 states and 31003 transitions. [2024-11-18 15:41:09,806 INFO L78 Accepts]: Start accepts. Automaton has 18186 states and 31003 transitions. Word has length 179 [2024-11-18 15:41:09,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:09,807 INFO L471 AbstractCegarLoop]: Abstraction has 18186 states and 31003 transitions. [2024-11-18 15:41:09,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:09,807 INFO L276 IsEmpty]: Start isEmpty. Operand 18186 states and 31003 transitions. [2024-11-18 15:41:09,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 15:41:09,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:09,818 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:09,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:41:09,819 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:09,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:09,819 INFO L85 PathProgramCache]: Analyzing trace with hash -983791364, now seen corresponding path program 1 times [2024-11-18 15:41:09,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:09,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674194013] [2024-11-18 15:41:09,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:09,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:10,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:41:10,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:10,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674194013] [2024-11-18 15:41:10,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674194013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:10,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:10,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:41:10,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855092867] [2024-11-18 15:41:10,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:10,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:41:10,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:10,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:41:10,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:41:10,010 INFO L87 Difference]: Start difference. First operand 18186 states and 31003 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:11,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:11,038 INFO L93 Difference]: Finished difference Result 39131 states and 68172 transitions. [2024-11-18 15:41:11,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 15:41:11,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-18 15:41:11,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:11,148 INFO L225 Difference]: With dead ends: 39131 [2024-11-18 15:41:11,149 INFO L226 Difference]: Without dead ends: 23086 [2024-11-18 15:41:11,208 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 15:41:11,210 INFO L432 NwaCegarLoop]: 4415 mSDtfsCounter, 4785 mSDsluCounter, 8671 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4805 SdHoareTripleChecker+Valid, 13086 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:11,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4805 Valid, 13086 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:41:11,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23086 states. [2024-11-18 15:41:11,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23086 to 18186. [2024-11-18 15:41:11,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18186 states, 17074 states have (on average 1.6720159306547968) internal successors, (28548), 17289 states have internal predecessors, (28548), 700 states have call successors, (700), 199 states have call predecessors, (700), 410 states have return successors, (1722), 729 states have call predecessors, (1722), 698 states have call successors, (1722) [2024-11-18 15:41:12,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18186 states to 18186 states and 30970 transitions. [2024-11-18 15:41:12,033 INFO L78 Accepts]: Start accepts. Automaton has 18186 states and 30970 transitions. Word has length 179 [2024-11-18 15:41:12,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:12,033 INFO L471 AbstractCegarLoop]: Abstraction has 18186 states and 30970 transitions. [2024-11-18 15:41:12,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:12,034 INFO L276 IsEmpty]: Start isEmpty. Operand 18186 states and 30970 transitions. [2024-11-18 15:41:12,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 15:41:12,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:12,044 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:12,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:41:12,045 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:12,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:12,045 INFO L85 PathProgramCache]: Analyzing trace with hash -597928962, now seen corresponding path program 1 times [2024-11-18 15:41:12,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:12,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744325726] [2024-11-18 15:41:12,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:12,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:12,210 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 15:41:12,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:12,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744325726] [2024-11-18 15:41:12,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744325726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:12,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:12,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:41:12,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299572902] [2024-11-18 15:41:12,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:12,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:41:12,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:12,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:41:12,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:12,214 INFO L87 Difference]: Start difference. First operand 18186 states and 30970 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:14,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:14,070 INFO L93 Difference]: Finished difference Result 55161 states and 96146 transitions. [2024-11-18 15:41:14,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:41:14,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-18 15:41:14,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:14,261 INFO L225 Difference]: With dead ends: 55161 [2024-11-18 15:41:14,261 INFO L226 Difference]: Without dead ends: 39116 [2024-11-18 15:41:14,335 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 15:41:14,336 INFO L432 NwaCegarLoop]: 4750 mSDtfsCounter, 5103 mSDsluCounter, 14317 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5123 SdHoareTripleChecker+Valid, 19067 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:14,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5123 Valid, 19067 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:41:14,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39116 states. [2024-11-18 15:41:15,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39116 to 38420. [2024-11-18 15:41:15,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38420 states, 35990 states have (on average 1.693525979438733) internal successors, (60950), 36659 states have internal predecessors, (60950), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 1056 states have return successors, (5466), 1433 states have call predecessors, (5466), 1370 states have call successors, (5466) [2024-11-18 15:41:15,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38420 states to 38420 states and 67788 transitions. [2024-11-18 15:41:16,005 INFO L78 Accepts]: Start accepts. Automaton has 38420 states and 67788 transitions. Word has length 179 [2024-11-18 15:41:16,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:16,007 INFO L471 AbstractCegarLoop]: Abstraction has 38420 states and 67788 transitions. [2024-11-18 15:41:16,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:16,008 INFO L276 IsEmpty]: Start isEmpty. Operand 38420 states and 67788 transitions. [2024-11-18 15:41:16,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 15:41:16,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:16,023 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:16,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:41:16,024 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:16,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:16,025 INFO L85 PathProgramCache]: Analyzing trace with hash -862576452, now seen corresponding path program 1 times [2024-11-18 15:41:16,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:16,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856967338] [2024-11-18 15:41:16,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:16,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:16,181 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 15:41:16,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:16,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856967338] [2024-11-18 15:41:16,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856967338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:16,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:16,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:41:16,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098448974] [2024-11-18 15:41:16,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:16,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:41:16,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:16,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:41:16,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:16,184 INFO L87 Difference]: Start difference. First operand 38420 states and 67788 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:19,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:19,192 INFO L93 Difference]: Finished difference Result 124909 states and 229346 transitions. [2024-11-18 15:41:19,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:41:19,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-18 15:41:19,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:19,795 INFO L225 Difference]: With dead ends: 124909 [2024-11-18 15:41:19,795 INFO L226 Difference]: Without dead ends: 88630 [2024-11-18 15:41:19,929 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 15:41:19,929 INFO L432 NwaCegarLoop]: 4747 mSDtfsCounter, 5098 mSDsluCounter, 14308 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5118 SdHoareTripleChecker+Valid, 19055 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:19,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5118 Valid, 19055 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:41:20,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88630 states. [2024-11-18 15:41:23,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88630 to 87393. [2024-11-18 15:41:23,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87393 states, 81841 states have (on average 1.7262008039979961) internal successors, (141274), 83904 states have internal predecessors, (141274), 2716 states have call successors, (2716), 775 states have call predecessors, (2716), 2834 states have return successors, (19098), 2841 states have call predecessors, (19098), 2714 states have call successors, (19098) [2024-11-18 15:41:23,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87393 states to 87393 states and 163088 transitions. [2024-11-18 15:41:23,993 INFO L78 Accepts]: Start accepts. Automaton has 87393 states and 163088 transitions. Word has length 179 [2024-11-18 15:41:23,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:23,994 INFO L471 AbstractCegarLoop]: Abstraction has 87393 states and 163088 transitions. [2024-11-18 15:41:23,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:23,995 INFO L276 IsEmpty]: Start isEmpty. Operand 87393 states and 163088 transitions. [2024-11-18 15:41:24,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 15:41:24,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:24,023 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:24,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:41:24,023 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:24,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:24,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1068549182, now seen corresponding path program 1 times [2024-11-18 15:41:24,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:24,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439062484] [2024-11-18 15:41:24,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:24,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:24,162 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 15:41:24,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:24,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439062484] [2024-11-18 15:41:24,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439062484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:24,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:24,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:41:24,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978730669] [2024-11-18 15:41:24,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:24,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:41:24,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:24,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:41:24,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:24,166 INFO L87 Difference]: Start difference. First operand 87393 states and 163088 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:30,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:30,419 INFO L93 Difference]: Finished difference Result 296906 states and 585540 transitions. [2024-11-18 15:41:30,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:41:30,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-18 15:41:30,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:31,702 INFO L225 Difference]: With dead ends: 296906 [2024-11-18 15:41:31,703 INFO L226 Difference]: Without dead ends: 211654 [2024-11-18 15:41:32,252 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 15:41:32,253 INFO L432 NwaCegarLoop]: 4463 mSDtfsCounter, 5138 mSDsluCounter, 13623 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5158 SdHoareTripleChecker+Valid, 18086 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:32,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5158 Valid, 18086 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:41:32,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211654 states. [2024-11-18 15:41:41,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211654 to 209396. [2024-11-18 15:41:41,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209396 states, 196142 states have (on average 1.7619785665487249) internal successors, (345598), 202451 states have internal predecessors, (345598), 5404 states have call successors, (5404), 1543 states have call predecessors, (5404), 7848 states have return successors, (70938), 5657 states have call predecessors, (70938), 5402 states have call successors, (70938) [2024-11-18 15:41:43,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209396 states to 209396 states and 421940 transitions. [2024-11-18 15:41:43,396 INFO L78 Accepts]: Start accepts. Automaton has 209396 states and 421940 transitions. Word has length 179 [2024-11-18 15:41:43,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:43,397 INFO L471 AbstractCegarLoop]: Abstraction has 209396 states and 421940 transitions. [2024-11-18 15:41:43,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 15:41:43,397 INFO L276 IsEmpty]: Start isEmpty. Operand 209396 states and 421940 transitions. [2024-11-18 15:41:43,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 15:41:43,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:43,460 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:43,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 15:41:43,460 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:43,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:43,461 INFO L85 PathProgramCache]: Analyzing trace with hash -254629764, now seen corresponding path program 1 times [2024-11-18 15:41:43,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:43,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457555636] [2024-11-18 15:41:43,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:43,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:43,621 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 15:41:43,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:43,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457555636] [2024-11-18 15:41:43,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457555636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:43,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:43,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:41:43,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326503854] [2024-11-18 15:41:43,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:43,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:41:43,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:43,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:41:43,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:41:43,625 INFO L87 Difference]: Start difference. First operand 209396 states and 421940 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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)