./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.05.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.05.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e270b9f7665b1c8abbbdbbd0440b4b4aa4509b75796aa73b96f40d2382c01832 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:19:41,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:19:41,293 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:19:41,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:19:41,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:19:41,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:19:41,326 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:19:41,326 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:19:41,327 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:19:41,328 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:19:41,328 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:19:41,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:19:41,329 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:19:41,331 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:19:41,332 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:19:41,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:19:41,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:19:41,332 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:19:41,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:19:41,333 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:19:41,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:19:41,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:19:41,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:19:41,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:19:41,334 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:19:41,334 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:19:41,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:19:41,334 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:19:41,334 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:19:41,334 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:19:41,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:19:41,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:19:41,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:19:41,335 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:19:41,335 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:19:41,335 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:19:41,335 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:19:41,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:19:41,336 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:19:41,336 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:19:41,336 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:19:41,337 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:19:41,337 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e270b9f7665b1c8abbbdbbd0440b4b4aa4509b75796aa73b96f40d2382c01832 [2024-10-14 04:19:41,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:19:41,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:19:41,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:19:41,588 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:19:41,588 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:19:41,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.05.cil-1.c [2024-10-14 04:19:43,048 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:19:43,559 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:19:43,560 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.05.cil-1.c [2024-10-14 04:19:43,646 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24b5230b5/3143dc08cbb44da3bfa1166ec74eaf78/FLAGd81a4f284 [2024-10-14 04:19:44,139 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24b5230b5/3143dc08cbb44da3bfa1166ec74eaf78 [2024-10-14 04:19:44,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:19:44,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:19:44,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:19:44,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:19:44,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:19:44,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:19:44" (1/1) ... [2024-10-14 04:19:44,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92e90a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:44, skipping insertion in model container [2024-10-14 04:19:44,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:19:44" (1/1) ... [2024-10-14 04:19:44,367 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:19:45,599 WARN L248 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_label40+token_ring.05.cil-1.c[377069,377082] [2024-10-14 04:19:45,627 WARN L248 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_label40+token_ring.05.cil-1.c[383339,383352] [2024-10-14 04:19:45,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:19:45,810 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:19:46,359 WARN L248 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_label40+token_ring.05.cil-1.c[377069,377082] [2024-10-14 04:19:46,364 WARN L248 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_label40+token_ring.05.cil-1.c[383339,383352] [2024-10-14 04:19:46,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:19:46,428 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:19:46,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:46 WrapperNode [2024-10-14 04:19:46,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:19:46,430 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:19:46,430 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:19:46,430 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:19:46,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:46" (1/1) ... [2024-10-14 04:19:46,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:46" (1/1) ... [2024-10-14 04:19:46,953 INFO L138 Inliner]: procedures = 54, calls = 56, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 12813 [2024-10-14 04:19:46,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:19:46,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:19:46,958 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:19:46,958 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:19:46,973 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:46" (1/1) ... [2024-10-14 04:19:46,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:46" (1/1) ... [2024-10-14 04:19:47,050 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:46" (1/1) ... [2024-10-14 04:19:47,127 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]. [2024-10-14 04:19:47,128 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:46" (1/1) ... [2024-10-14 04:19:47,128 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:46" (1/1) ... [2024-10-14 04:19:47,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:46" (1/1) ... [2024-10-14 04:19:47,344 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:46" (1/1) ... [2024-10-14 04:19:47,368 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:46" (1/1) ... [2024-10-14 04:19:47,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:46" (1/1) ... [2024-10-14 04:19:47,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:19:47,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:19:47,444 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:19:47,444 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:19:47,445 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:46" (1/1) ... [2024-10-14 04:19:47,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:19:47,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:19:47,475 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) [2024-10-14 04:19:47,477 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 [2024-10-14 04:19:47,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:19:47,510 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-14 04:19:47,510 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-14 04:19:47,510 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-14 04:19:47,510 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-14 04:19:47,510 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-14 04:19:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-14 04:19:47,511 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-14 04:19:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-14 04:19:47,511 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-14 04:19:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-14 04:19:47,511 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-14 04:19:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-14 04:19:47,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:19:47,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:19:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:19:47,594 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:19:47,596 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:19:54,188 INFO L? ?]: Removed 1713 outVars from TransFormulas that were not future-live. [2024-10-14 04:19:54,189 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:19:54,262 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:19:54,262 INFO L314 CfgBuilder]: Removed 9 assume(true) statements. [2024-10-14 04:19:54,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:19:54 BoogieIcfgContainer [2024-10-14 04:19:54,263 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:19:54,264 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:19:54,264 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:19:54,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:19:54,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:19:44" (1/3) ... [2024-10-14 04:19:54,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100d19a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:19:54, skipping insertion in model container [2024-10-14 04:19:54,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:19:46" (2/3) ... [2024-10-14 04:19:54,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100d19a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:19:54, skipping insertion in model container [2024-10-14 04:19:54,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:19:54" (3/3) ... [2024-10-14 04:19:54,269 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.05.cil-1.c [2024-10-14 04:19:54,281 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:19:54,281 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 04:19:54,356 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:19:54,361 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;@46260c29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:19:54,361 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 04:19:54,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 2310 states, 2282 states have (on average 1.8825591586327783) internal successors, (4296), 2285 states have internal predecessors, (4296), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 04:19:54,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 04:19:54,390 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:19:54,390 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] [2024-10-14 04:19:54,391 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:19:54,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:19:54,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1489029610, now seen corresponding path program 1 times [2024-10-14 04:19:54,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:19:54,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878135173] [2024-10-14 04:19:54,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:19:54,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:19:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:54,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:19:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:54,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:19:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:54,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:19:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:54,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:19:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:54,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:19:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:54,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:19:54,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:19:54,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878135173] [2024-10-14 04:19:54,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878135173] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:19:54,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:19:54,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 04:19:54,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521602489] [2024-10-14 04:19:54,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:19:54,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:19:54,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:19:54,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:19:54,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:19:54,829 INFO L87 Difference]: Start difference. First operand has 2310 states, 2282 states have (on average 1.8825591586327783) internal successors, (4296), 2285 states have internal predecessors, (4296), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:19:55,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:19:55,987 INFO L93 Difference]: Finished difference Result 4674 states and 8762 transitions. [2024-10-14 04:19:55,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:19:55,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-14 04:19:55,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:19:56,006 INFO L225 Difference]: With dead ends: 4674 [2024-10-14 04:19:56,006 INFO L226 Difference]: Without dead ends: 2366 [2024-10-14 04:19:56,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:19:56,016 INFO L432 NwaCegarLoop]: 4124 mSDtfsCounter, 480 mSDsluCounter, 12050 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 16174 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 04:19:56,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 16174 Invalid, 566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [42 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 04:19:56,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2024-10-14 04:19:56,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2306. [2024-10-14 04:19:56,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 2279 states have (on average 1.8473014480035104) internal successors, (4210), 2281 states have internal predecessors, (4210), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 04:19:56,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 4248 transitions. [2024-10-14 04:19:56,115 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 4248 transitions. Word has length 91 [2024-10-14 04:19:56,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:19:56,116 INFO L471 AbstractCegarLoop]: Abstraction has 2306 states and 4248 transitions. [2024-10-14 04:19:56,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:19:56,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 4248 transitions. [2024-10-14 04:19:56,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 04:19:56,119 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:19:56,119 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:19:56,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:19:56,120 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:19:56,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:19:56,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1239179736, now seen corresponding path program 1 times [2024-10-14 04:19:56,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:19:56,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784942292] [2024-10-14 04:19:56,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:19:56,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:19:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:56,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:19:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:56,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:19:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:56,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:19:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:56,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:19:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:56,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:19:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:56,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:19:56,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:19:56,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784942292] [2024-10-14 04:19:56,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784942292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:19:56,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:19:56,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:19:56,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664652184] [2024-10-14 04:19:56,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:19:56,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:19:56,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:19:56,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:19:56,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:19:56,304 INFO L87 Difference]: Start difference. First operand 2306 states and 4248 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:19:57,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:19:57,422 INFO L93 Difference]: Finished difference Result 2779 states and 5016 transitions. [2024-10-14 04:19:57,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:19:57,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-14 04:19:57,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:19:57,438 INFO L225 Difference]: With dead ends: 2779 [2024-10-14 04:19:57,439 INFO L226 Difference]: Without dead ends: 2605 [2024-10-14 04:19:57,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:19:57,441 INFO L432 NwaCegarLoop]: 4103 mSDtfsCounter, 4671 mSDsluCounter, 12286 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4683 SdHoareTripleChecker+Valid, 16389 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 04:19:57,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4683 Valid, 16389 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 04:19:57,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2024-10-14 04:19:57,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2486. [2024-10-14 04:19:57,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2438 states have (on average 1.8314191960623463) internal successors, (4465), 2441 states have internal predecessors, (4465), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-10-14 04:19:57,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 4534 transitions. [2024-10-14 04:19:57,504 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 4534 transitions. Word has length 91 [2024-10-14 04:19:57,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:19:57,504 INFO L471 AbstractCegarLoop]: Abstraction has 2486 states and 4534 transitions. [2024-10-14 04:19:57,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:19:57,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 4534 transitions. [2024-10-14 04:19:57,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 04:19:57,507 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:19:57,507 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] [2024-10-14 04:19:57,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:19:57,507 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:19:57,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:19:57,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1642518564, now seen corresponding path program 1 times [2024-10-14 04:19:57,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:19:57,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337745903] [2024-10-14 04:19:57,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:19:57,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:19:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:57,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:19:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:57,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:19:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:57,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:19:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:57,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:19:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:57,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:19:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:57,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:19:57,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:19:57,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337745903] [2024-10-14 04:19:57,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337745903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:19:57,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:19:57,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:19:57,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594911580] [2024-10-14 04:19:57,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:19:57,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:19:57,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:19:57,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:19:57,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:19:57,667 INFO L87 Difference]: Start difference. First operand 2486 states and 4534 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:19:59,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:19:59,311 INFO L93 Difference]: Finished difference Result 3204 states and 5694 transitions. [2024-10-14 04:19:59,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:19:59,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-14 04:19:59,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:19:59,323 INFO L225 Difference]: With dead ends: 3204 [2024-10-14 04:19:59,324 INFO L226 Difference]: Without dead ends: 2850 [2024-10-14 04:19:59,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:19:59,328 INFO L432 NwaCegarLoop]: 4210 mSDtfsCounter, 4688 mSDsluCounter, 16626 mSDsCounter, 0 mSdLazyCounter, 1822 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4700 SdHoareTripleChecker+Valid, 20836 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:19:59,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4700 Valid, 20836 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1822 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 04:19:59,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2024-10-14 04:19:59,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2653. [2024-10-14 04:19:59,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2653 states, 2584 states have (on average 1.8165634674922602) internal successors, (4694), 2588 states have internal predecessors, (4694), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-10-14 04:19:59,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 4793 transitions. [2024-10-14 04:19:59,397 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 4793 transitions. Word has length 91 [2024-10-14 04:19:59,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:19:59,398 INFO L471 AbstractCegarLoop]: Abstraction has 2653 states and 4793 transitions. [2024-10-14 04:19:59,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:19:59,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 4793 transitions. [2024-10-14 04:19:59,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 04:19:59,400 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:19:59,400 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] [2024-10-14 04:19:59,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:19:59,401 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:19:59,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:19:59,401 INFO L85 PathProgramCache]: Analyzing trace with hash 575111834, now seen corresponding path program 1 times [2024-10-14 04:19:59,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:19:59,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904881109] [2024-10-14 04:19:59,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:19:59,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:19:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:59,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:19:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:59,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:19:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:59,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:19:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:59,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:19:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:59,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:19:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:19:59,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:19:59,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:19:59,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904881109] [2024-10-14 04:19:59,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904881109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:19:59,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:19:59,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:19:59,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170431335] [2024-10-14 04:19:59,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:19:59,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:19:59,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:19:59,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:19:59,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:19:59,625 INFO L87 Difference]: Start difference. First operand 2653 states and 4793 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:00,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:20:00,674 INFO L93 Difference]: Finished difference Result 3375 states and 5967 transitions. [2024-10-14 04:20:00,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:20:00,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-14 04:20:00,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:20:00,685 INFO L225 Difference]: With dead ends: 3375 [2024-10-14 04:20:00,685 INFO L226 Difference]: Without dead ends: 2854 [2024-10-14 04:20:00,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:20:00,688 INFO L432 NwaCegarLoop]: 4090 mSDtfsCounter, 4492 mSDsluCounter, 16226 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4505 SdHoareTripleChecker+Valid, 20316 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 04:20:00,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4505 Valid, 20316 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 04:20:00,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2024-10-14 04:20:00,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 2653. [2024-10-14 04:20:00,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2653 states, 2584 states have (on average 1.8154024767801857) internal successors, (4691), 2588 states have internal predecessors, (4691), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-10-14 04:20:00,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 4790 transitions. [2024-10-14 04:20:00,775 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 4790 transitions. Word has length 91 [2024-10-14 04:20:00,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:20:00,776 INFO L471 AbstractCegarLoop]: Abstraction has 2653 states and 4790 transitions. [2024-10-14 04:20:00,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:00,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 4790 transitions. [2024-10-14 04:20:00,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 04:20:00,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:20:00,778 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] [2024-10-14 04:20:00,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 04:20:00,778 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:20:00,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:20:00,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1462334680, now seen corresponding path program 1 times [2024-10-14 04:20:00,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:20:00,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972024789] [2024-10-14 04:20:00,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:20:00,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:20:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:00,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:20:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:00,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:20:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:00,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:20:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:00,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:20:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:00,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:20:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:00,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:20:00,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:20:00,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972024789] [2024-10-14 04:20:00,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972024789] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:20:00,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:20:00,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:20:00,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359941738] [2024-10-14 04:20:00,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:20:00,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:20:00,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:20:00,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:20:00,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:20:00,941 INFO L87 Difference]: Start difference. First operand 2653 states and 4790 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:01,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:20:01,887 INFO L93 Difference]: Finished difference Result 3371 states and 5950 transitions. [2024-10-14 04:20:01,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:20:01,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-14 04:20:01,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:20:01,900 INFO L225 Difference]: With dead ends: 3371 [2024-10-14 04:20:01,900 INFO L226 Difference]: Without dead ends: 2850 [2024-10-14 04:20:01,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:20:01,906 INFO L432 NwaCegarLoop]: 4090 mSDtfsCounter, 4490 mSDsluCounter, 16226 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4503 SdHoareTripleChecker+Valid, 20316 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 04:20:01,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4503 Valid, 20316 Invalid, 955 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 04:20:01,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2024-10-14 04:20:01,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2653. [2024-10-14 04:20:01,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2653 states, 2584 states have (on average 1.8142414860681115) internal successors, (4688), 2588 states have internal predecessors, (4688), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-10-14 04:20:01,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 4787 transitions. [2024-10-14 04:20:01,998 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 4787 transitions. Word has length 91 [2024-10-14 04:20:01,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:20:01,999 INFO L471 AbstractCegarLoop]: Abstraction has 2653 states and 4787 transitions. [2024-10-14 04:20:01,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:01,999 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 4787 transitions. [2024-10-14 04:20:02,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 04:20:02,001 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:20:02,001 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] [2024-10-14 04:20:02,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 04:20:02,001 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:20:02,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:20:02,002 INFO L85 PathProgramCache]: Analyzing trace with hash -448707878, now seen corresponding path program 1 times [2024-10-14 04:20:02,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:20:02,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192005553] [2024-10-14 04:20:02,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:20:02,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:20:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:02,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:20:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:02,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:20:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:02,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:20:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:02,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:20:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:02,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:20:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:02,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:20:02,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:20:02,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192005553] [2024-10-14 04:20:02,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192005553] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:20:02,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:20:02,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:20:02,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360411751] [2024-10-14 04:20:02,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:20:02,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:20:02,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:20:02,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:20:02,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:20:02,114 INFO L87 Difference]: Start difference. First operand 2653 states and 4787 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:02,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:20:02,857 INFO L93 Difference]: Finished difference Result 3367 states and 5933 transitions. [2024-10-14 04:20:02,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:20:02,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-14 04:20:02,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:20:02,868 INFO L225 Difference]: With dead ends: 3367 [2024-10-14 04:20:02,869 INFO L226 Difference]: Without dead ends: 2846 [2024-10-14 04:20:02,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:20:02,872 INFO L432 NwaCegarLoop]: 4090 mSDtfsCounter, 4488 mSDsluCounter, 16226 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4501 SdHoareTripleChecker+Valid, 20316 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:20:02,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4501 Valid, 20316 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 04:20:02,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2024-10-14 04:20:03,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2653. [2024-10-14 04:20:03,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2653 states, 2584 states have (on average 1.813080495356037) internal successors, (4685), 2588 states have internal predecessors, (4685), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-10-14 04:20:03,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 4784 transitions. [2024-10-14 04:20:03,022 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 4784 transitions. Word has length 91 [2024-10-14 04:20:03,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:20:03,023 INFO L471 AbstractCegarLoop]: Abstraction has 2653 states and 4784 transitions. [2024-10-14 04:20:03,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:03,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 4784 transitions. [2024-10-14 04:20:03,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 04:20:03,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:20:03,025 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] [2024-10-14 04:20:03,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:20:03,025 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:20:03,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:20:03,026 INFO L85 PathProgramCache]: Analyzing trace with hash -371807080, now seen corresponding path program 1 times [2024-10-14 04:20:03,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:20:03,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310846322] [2024-10-14 04:20:03,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:20:03,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:20:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:03,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:20:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:03,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:20:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:03,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:20:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:03,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:20:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:03,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:20:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:03,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:20:03,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:20:03,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310846322] [2024-10-14 04:20:03,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310846322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:20:03,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:20:03,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:20:03,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436019946] [2024-10-14 04:20:03,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:20:03,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:20:03,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:20:03,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:20:03,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:20:03,178 INFO L87 Difference]: Start difference. First operand 2653 states and 4784 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:04,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:20:04,698 INFO L93 Difference]: Finished difference Result 3949 states and 6833 transitions. [2024-10-14 04:20:04,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:20:04,699 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-14 04:20:04,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:20:04,711 INFO L225 Difference]: With dead ends: 3949 [2024-10-14 04:20:04,711 INFO L226 Difference]: Without dead ends: 3428 [2024-10-14 04:20:04,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:20:04,715 INFO L432 NwaCegarLoop]: 4114 mSDtfsCounter, 4898 mSDsluCounter, 16369 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4916 SdHoareTripleChecker+Valid, 20483 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:20:04,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4916 Valid, 20483 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 04:20:04,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3428 states. [2024-10-14 04:20:04,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3428 to 2996. [2024-10-14 04:20:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2996 states, 2887 states have (on average 1.7852441981295462) internal successors, (5154), 2893 states have internal predecessors, (5154), 73 states have call successors, (73), 30 states have call predecessors, (73), 34 states have return successors, (86), 76 states have call predecessors, (86), 73 states have call successors, (86) [2024-10-14 04:20:04,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2996 states to 2996 states and 5313 transitions. [2024-10-14 04:20:04,836 INFO L78 Accepts]: Start accepts. Automaton has 2996 states and 5313 transitions. Word has length 91 [2024-10-14 04:20:04,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:20:04,836 INFO L471 AbstractCegarLoop]: Abstraction has 2996 states and 5313 transitions. [2024-10-14 04:20:04,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:04,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2996 states and 5313 transitions. [2024-10-14 04:20:04,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 04:20:04,842 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:20:04,842 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] [2024-10-14 04:20:04,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:20:04,843 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:20:04,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:20:04,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1339157734, now seen corresponding path program 1 times [2024-10-14 04:20:04,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:20:04,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759909984] [2024-10-14 04:20:04,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:20:04,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:20:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:04,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:20:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:04,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:20:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:04,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:20:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:04,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:20:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:04,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:20:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:05,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:20:05,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:20:05,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759909984] [2024-10-14 04:20:05,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759909984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:20:05,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:20:05,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:20:05,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82160569] [2024-10-14 04:20:05,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:20:05,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:20:05,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:20:05,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:20:05,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:20:05,004 INFO L87 Difference]: Start difference. First operand 2996 states and 5313 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:06,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:20:06,816 INFO L93 Difference]: Finished difference Result 5232 states and 8832 transitions. [2024-10-14 04:20:06,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:20:06,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-14 04:20:06,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:20:06,834 INFO L225 Difference]: With dead ends: 5232 [2024-10-14 04:20:06,834 INFO L226 Difference]: Without dead ends: 4368 [2024-10-14 04:20:06,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:20:06,840 INFO L432 NwaCegarLoop]: 4205 mSDtfsCounter, 4697 mSDsluCounter, 16618 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4708 SdHoareTripleChecker+Valid, 20823 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:20:06,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4708 Valid, 20823 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 04:20:06,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4368 states. [2024-10-14 04:20:06,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4368 to 3653. [2024-10-14 04:20:06,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3653 states, 3466 states have (on average 1.7443739180611657) internal successors, (6046), 3476 states have internal predecessors, (6046), 123 states have call successors, (123), 54 states have call predecessors, (123), 62 states have return successors, (158), 130 states have call predecessors, (158), 123 states have call successors, (158) [2024-10-14 04:20:06,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3653 states to 3653 states and 6327 transitions. [2024-10-14 04:20:07,000 INFO L78 Accepts]: Start accepts. Automaton has 3653 states and 6327 transitions. Word has length 91 [2024-10-14 04:20:07,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:20:07,001 INFO L471 AbstractCegarLoop]: Abstraction has 3653 states and 6327 transitions. [2024-10-14 04:20:07,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:07,001 INFO L276 IsEmpty]: Start isEmpty. Operand 3653 states and 6327 transitions. [2024-10-14 04:20:07,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 04:20:07,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:20:07,003 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] [2024-10-14 04:20:07,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:20:07,003 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:20:07,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:20:07,004 INFO L85 PathProgramCache]: Analyzing trace with hash 569300056, now seen corresponding path program 1 times [2024-10-14 04:20:07,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:20:07,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334941248] [2024-10-14 04:20:07,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:20:07,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:20:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:07,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:20:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:07,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:20:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:07,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:20:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:07,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:20:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:07,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:20:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:20:07,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:20:07,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334941248] [2024-10-14 04:20:07,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334941248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:20:07,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:20:07,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:20:07,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294496747] [2024-10-14 04:20:07,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:20:07,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:20:07,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:20:07,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:20:07,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:20:07,138 INFO L87 Difference]: Start difference. First operand 3653 states and 6327 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:08,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:20:08,716 INFO L93 Difference]: Finished difference Result 7675 states and 12640 transitions. [2024-10-14 04:20:08,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:20:08,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-14 04:20:08,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:20:08,734 INFO L225 Difference]: With dead ends: 7675 [2024-10-14 04:20:08,735 INFO L226 Difference]: Without dead ends: 6154 [2024-10-14 04:20:08,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:20:08,742 INFO L432 NwaCegarLoop]: 4206 mSDtfsCounter, 4778 mSDsluCounter, 16621 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4796 SdHoareTripleChecker+Valid, 20827 SdHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:20:08,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4796 Valid, 20827 Invalid, 1742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 04:20:08,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2024-10-14 04:20:08,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 4986. [2024-10-14 04:20:08,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4986 states, 4647 states have (on average 1.6931353561437485) internal successors, (7868), 4665 states have internal predecessors, (7868), 219 states have call successors, (219), 102 states have call predecessors, (219), 118 states have return successors, (316), 234 states have call predecessors, (316), 219 states have call successors, (316) [2024-10-14 04:20:08,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4986 states to 4986 states and 8403 transitions. [2024-10-14 04:20:08,928 INFO L78 Accepts]: Start accepts. Automaton has 4986 states and 8403 transitions. Word has length 91 [2024-10-14 04:20:08,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:20:08,929 INFO L471 AbstractCegarLoop]: Abstraction has 4986 states and 8403 transitions. [2024-10-14 04:20:08,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:08,929 INFO L276 IsEmpty]: Start isEmpty. Operand 4986 states and 8403 transitions. [2024-10-14 04:20:08,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 04:20:08,931 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:20:08,931 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] [2024-10-14 04:20:08,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 04:20:08,932 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:20:08,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:20:08,932 INFO L85 PathProgramCache]: Analyzing trace with hash 76673882, now seen corresponding path program 1 times [2024-10-14 04:20:08,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:20:08,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182484679] [2024-10-14 04:20:08,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:20:08,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:20:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:08,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:20:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:09,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:20:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:09,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:20:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:09,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:20:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:09,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:20:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:09,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:20:09,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:20:09,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182484679] [2024-10-14 04:20:09,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182484679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:20:09,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:20:09,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:20:09,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135060832] [2024-10-14 04:20:09,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:20:09,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:20:09,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:20:09,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:20:09,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:20:09,097 INFO L87 Difference]: Start difference. First operand 4986 states and 8403 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:11,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:20:11,009 INFO L93 Difference]: Finished difference Result 12494 states and 20210 transitions. [2024-10-14 04:20:11,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:20:11,010 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-14 04:20:11,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:20:11,064 INFO L225 Difference]: With dead ends: 12494 [2024-10-14 04:20:11,064 INFO L226 Difference]: Without dead ends: 9640 [2024-10-14 04:20:11,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:20:11,084 INFO L432 NwaCegarLoop]: 4206 mSDtfsCounter, 4748 mSDsluCounter, 16621 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4766 SdHoareTripleChecker+Valid, 20827 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:20:11,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4766 Valid, 20827 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1672 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 04:20:11,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9640 states. [2024-10-14 04:20:11,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9640 to 7651. [2024-10-14 04:20:11,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7651 states, 7016 states have (on average 1.6428164196123147) internal successors, (11526), 7050 states have internal predecessors, (11526), 403 states have call successors, (403), 198 states have call predecessors, (403), 230 states have return successors, (678), 434 states have call predecessors, (678), 403 states have call successors, (678) [2024-10-14 04:20:11,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7651 states to 7651 states and 12607 transitions. [2024-10-14 04:20:11,402 INFO L78 Accepts]: Start accepts. Automaton has 7651 states and 12607 transitions. Word has length 91 [2024-10-14 04:20:11,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:20:11,403 INFO L471 AbstractCegarLoop]: Abstraction has 7651 states and 12607 transitions. [2024-10-14 04:20:11,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:11,403 INFO L276 IsEmpty]: Start isEmpty. Operand 7651 states and 12607 transitions. [2024-10-14 04:20:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 04:20:11,412 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:20:11,412 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] [2024-10-14 04:20:11,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 04:20:11,413 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:20:11,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:20:11,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1030614040, now seen corresponding path program 1 times [2024-10-14 04:20:11,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:20:11,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163955875] [2024-10-14 04:20:11,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:20:11,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:20:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:11,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:20:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:11,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:20:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:11,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:20:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:11,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:20:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:11,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:20:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:11,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:20:11,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:20:11,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163955875] [2024-10-14 04:20:11,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163955875] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:20:11,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:20:11,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:20:11,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548008672] [2024-10-14 04:20:11,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:20:11,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:20:11,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:20:11,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:20:11,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:20:11,556 INFO L87 Difference]: Start difference. First operand 7651 states and 12607 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:13,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:20:13,647 INFO L93 Difference]: Finished difference Result 21475 states and 34508 transitions. [2024-10-14 04:20:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:20:13,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-14 04:20:13,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:20:13,694 INFO L225 Difference]: With dead ends: 21475 [2024-10-14 04:20:13,694 INFO L226 Difference]: Without dead ends: 15956 [2024-10-14 04:20:13,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:20:13,710 INFO L432 NwaCegarLoop]: 4206 mSDtfsCounter, 4670 mSDsluCounter, 16621 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4688 SdHoareTripleChecker+Valid, 20827 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:20:13,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4688 Valid, 20827 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 04:20:13,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15956 states. [2024-10-14 04:20:14,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15956 to 13013. [2024-10-14 04:20:14,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13013 states, 11802 states have (on average 1.6046432807998645) internal successors, (18938), 11868 states have internal predecessors, (18938), 755 states have call successors, (755), 390 states have call predecessors, (755), 454 states have return successors, (1548), 818 states have call predecessors, (1548), 755 states have call successors, (1548) [2024-10-14 04:20:14,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13013 states to 13013 states and 21241 transitions. [2024-10-14 04:20:14,285 INFO L78 Accepts]: Start accepts. Automaton has 13013 states and 21241 transitions. Word has length 91 [2024-10-14 04:20:14,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:20:14,285 INFO L471 AbstractCegarLoop]: Abstraction has 13013 states and 21241 transitions. [2024-10-14 04:20:14,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:14,286 INFO L276 IsEmpty]: Start isEmpty. Operand 13013 states and 21241 transitions. [2024-10-14 04:20:14,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 04:20:14,293 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:20:14,293 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] [2024-10-14 04:20:14,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 04:20:14,293 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:20:14,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:20:14,294 INFO L85 PathProgramCache]: Analyzing trace with hash 298646614, now seen corresponding path program 1 times [2024-10-14 04:20:14,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:20:14,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124107660] [2024-10-14 04:20:14,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:20:14,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:20:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:14,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:20:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:14,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:20:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:14,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:20:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:14,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:20:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:14,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:20:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:14,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:20:14,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:20:14,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124107660] [2024-10-14 04:20:14,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124107660] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:20:14,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:20:14,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:20:14,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663577915] [2024-10-14 04:20:14,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:20:14,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:20:14,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:20:14,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:20:14,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:20:14,423 INFO L87 Difference]: Start difference. First operand 13013 states and 21241 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:16,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:20:16,662 INFO L93 Difference]: Finished difference Result 33124 states and 53179 transitions. [2024-10-14 04:20:16,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:20:16,663 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-14 04:20:16,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:20:16,725 INFO L225 Difference]: With dead ends: 33124 [2024-10-14 04:20:16,726 INFO L226 Difference]: Without dead ends: 22244 [2024-10-14 04:20:16,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-14 04:20:16,755 INFO L432 NwaCegarLoop]: 4249 mSDtfsCounter, 4875 mSDsluCounter, 12381 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4906 SdHoareTripleChecker+Valid, 16630 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 04:20:16,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4906 Valid, 16630 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 04:20:16,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22244 states. [2024-10-14 04:20:17,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22244 to 18457. [2024-10-14 04:20:17,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18457 states, 16617 states have (on average 1.5798278871035687) internal successors, (26252), 16748 states have internal predecessors, (26252), 1154 states have call successors, (1154), 588 states have call predecessors, (1154), 684 states have return successors, (2191), 1184 states have call predecessors, (2191), 1154 states have call successors, (2191) [2024-10-14 04:20:17,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18457 states to 18457 states and 29597 transitions. [2024-10-14 04:20:17,614 INFO L78 Accepts]: Start accepts. Automaton has 18457 states and 29597 transitions. Word has length 91 [2024-10-14 04:20:17,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:20:17,615 INFO L471 AbstractCegarLoop]: Abstraction has 18457 states and 29597 transitions. [2024-10-14 04:20:17,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:20:17,615 INFO L276 IsEmpty]: Start isEmpty. Operand 18457 states and 29597 transitions. [2024-10-14 04:20:17,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-14 04:20:17,645 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:20:17,645 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:20:17,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 04:20:17,645 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:20:17,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:20:17,646 INFO L85 PathProgramCache]: Analyzing trace with hash -141768235, now seen corresponding path program 1 times [2024-10-14 04:20:17,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:20:17,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744302260] [2024-10-14 04:20:17,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:20:17,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:20:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:17,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:20:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:17,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:20:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:17,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:20:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:17,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:20:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:17,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:20:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:17,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 04:20:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:17,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-14 04:20:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:17,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 04:20:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-14 04:20:17,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:20:17,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744302260] [2024-10-14 04:20:17,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744302260] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:20:17,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447211325] [2024-10-14 04:20:17,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:20:17,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:20:17,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:20:17,813 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:20:17,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 04:20:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:17,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 04:20:17,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:20:18,012 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-14 04:20:18,014 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 04:20:18,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447211325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:20:18,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 04:20:18,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-14 04:20:18,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322996287] [2024-10-14 04:20:18,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:20:18,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:20:18,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:20:18,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:20:18,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:20:18,016 INFO L87 Difference]: Start difference. First operand 18457 states and 29597 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 04:20:19,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:20:19,752 INFO L93 Difference]: Finished difference Result 50706 states and 80639 transitions. [2024-10-14 04:20:19,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:20:19,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 147 [2024-10-14 04:20:19,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:20:19,879 INFO L225 Difference]: With dead ends: 50706 [2024-10-14 04:20:19,880 INFO L226 Difference]: Without dead ends: 34382 [2024-10-14 04:20:19,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:20:19,921 INFO L432 NwaCegarLoop]: 4218 mSDtfsCounter, 4191 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4191 SdHoareTripleChecker+Valid, 4457 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:20:19,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4191 Valid, 4457 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:20:19,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34382 states. [2024-10-14 04:20:21,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34382 to 34282. [2024-10-14 04:20:21,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34282 states, 30710 states have (on average 1.557896450667535) internal successors, (47843), 30970 states have internal predecessors, (47843), 2204 states have call successors, (2204), 1174 states have call predecessors, (2204), 1366 states have return successors, (4215), 2201 states have call predecessors, (4215), 2204 states have call successors, (4215) [2024-10-14 04:20:22,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34282 states to 34282 states and 54262 transitions. [2024-10-14 04:20:22,077 INFO L78 Accepts]: Start accepts. Automaton has 34282 states and 54262 transitions. Word has length 147 [2024-10-14 04:20:22,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:20:22,081 INFO L471 AbstractCegarLoop]: Abstraction has 34282 states and 54262 transitions. [2024-10-14 04:20:22,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 04:20:22,081 INFO L276 IsEmpty]: Start isEmpty. Operand 34282 states and 54262 transitions. [2024-10-14 04:20:22,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-14 04:20:22,138 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:20:22,138 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:20:22,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 04:20:22,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-14 04:20:22,340 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:20:22,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:20:22,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1606749997, now seen corresponding path program 1 times [2024-10-14 04:20:22,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:20:22,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139219612] [2024-10-14 04:20:22,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:20:22,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:20:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:22,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:20:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:22,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:20:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:22,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:20:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:22,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:20:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:22,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:20:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:22,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 04:20:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:22,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-14 04:20:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:22,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 04:20:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:22,456 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-14 04:20:22,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:20:22,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139219612] [2024-10-14 04:20:22,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139219612] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:20:22,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081035941] [2024-10-14 04:20:22,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:20:22,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:20:22,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:20:22,460 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:20:22,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 04:20:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:22,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 04:20:22,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:20:22,629 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 04:20:22,630 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 04:20:22,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081035941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:20:22,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 04:20:22,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-14 04:20:22,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926768585] [2024-10-14 04:20:22,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:20:22,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:20:22,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:20:22,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:20:22,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:20:22,633 INFO L87 Difference]: Start difference. First operand 34282 states and 54262 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 04:20:26,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:20:26,092 INFO L93 Difference]: Finished difference Result 97981 states and 154794 transitions. [2024-10-14 04:20:26,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:20:26,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 147 [2024-10-14 04:20:26,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:20:26,279 INFO L225 Difference]: With dead ends: 97981 [2024-10-14 04:20:26,279 INFO L226 Difference]: Without dead ends: 65832 [2024-10-14 04:20:26,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:20:26,342 INFO L432 NwaCegarLoop]: 4218 mSDtfsCounter, 4181 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4181 SdHoareTripleChecker+Valid, 4457 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:20:26,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4181 Valid, 4457 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:20:26,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65832 states. [2024-10-14 04:20:30,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65832 to 65634. [2024-10-14 04:20:30,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65634 states, 58600 states have (on average 1.543259385665529) internal successors, (90435), 59118 states have internal predecessors, (90435), 4302 states have call successors, (4302), 2346 states have call predecessors, (4302), 2730 states have return successors, (8261), 4233 states have call predecessors, (8261), 4302 states have call successors, (8261) [2024-10-14 04:20:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65634 states to 65634 states and 102998 transitions. [2024-10-14 04:20:30,431 INFO L78 Accepts]: Start accepts. Automaton has 65634 states and 102998 transitions. Word has length 147 [2024-10-14 04:20:30,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:20:30,432 INFO L471 AbstractCegarLoop]: Abstraction has 65634 states and 102998 transitions. [2024-10-14 04:20:30,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 04:20:30,432 INFO L276 IsEmpty]: Start isEmpty. Operand 65634 states and 102998 transitions. [2024-10-14 04:20:30,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-14 04:20:30,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:20:30,497 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:20:30,515 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 04:20:30,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-14 04:20:30,701 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:20:30,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:20:30,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1004543313, now seen corresponding path program 1 times [2024-10-14 04:20:30,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:20:30,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186886541] [2024-10-14 04:20:30,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:20:30,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:20:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:30,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:20:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:30,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 04:20:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:30,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:20:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:30,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 04:20:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:30,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 04:20:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:30,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 04:20:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:30,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-14 04:20:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:30,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 04:20:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:30,794 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-14 04:20:30,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:20:30,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186886541] [2024-10-14 04:20:30,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186886541] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:20:30,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522834207] [2024-10-14 04:20:30,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:20:30,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:20:30,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:20:30,797 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:20:30,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 04:20:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:20:30,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 04:20:30,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:20:30,935 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-14 04:20:30,936 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 04:20:30,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522834207] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:20:30,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 04:20:30,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-14 04:20:30,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659013257] [2024-10-14 04:20:30,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:20:30,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:20:30,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:20:30,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:20:30,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:20:30,938 INFO L87 Difference]: Start difference. First operand 65634 states and 102998 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 04:20:38,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:20:38,144 INFO L93 Difference]: Finished difference Result 191433 states and 300920 transitions. [2024-10-14 04:20:38,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:20:38,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 147 [2024-10-14 04:20:38,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:20:38,587 INFO L225 Difference]: With dead ends: 191433 [2024-10-14 04:20:38,587 INFO L226 Difference]: Without dead ends: 127932 [2024-10-14 04:20:38,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:20:38,735 INFO L432 NwaCegarLoop]: 4218 mSDtfsCounter, 4196 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4196 SdHoareTripleChecker+Valid, 4457 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:20:38,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4196 Valid, 4457 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:20:38,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127932 states.