./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_label43+token_ring.07.cil-2.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_label43+token_ring.07.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ece5e10278ff4277201bc584c9d4f272bab8d3b56dec5e2dfa257f3717fce473 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:25:25,076 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:25:25,151 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:25:25,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:25:25,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:25:25,177 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:25:25,178 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:25:25,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:25:25,179 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:25:25,181 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:25:25,181 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:25:25,181 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:25:25,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:25:25,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:25:25,182 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:25:25,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:25:25,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:25:25,184 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:25:25,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:25:25,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:25:25,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:25:25,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:25:25,187 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:25:25,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:25:25,187 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:25:25,187 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:25:25,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:25:25,187 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:25:25,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:25:25,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:25:25,188 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:25:25,188 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:25:25,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:25:25,188 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:25:25,188 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:25:25,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:25:25,189 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:25:25,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:25:25,189 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:25:25,189 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:25:25,189 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:25:25,191 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:25:25,191 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ece5e10278ff4277201bc584c9d4f272bab8d3b56dec5e2dfa257f3717fce473 [2024-10-14 04:25:25,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:25:25,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:25:25,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:25:25,481 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:25:25,482 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:25:25,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-2.c [2024-10-14 04:25:26,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:25:27,438 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:25:27,439 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-2.c [2024-10-14 04:25:27,484 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908abeb0c/34214a50b29e4bc1af59fc414b4dae1e/FLAG31636029f [2024-10-14 04:25:27,951 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908abeb0c/34214a50b29e4bc1af59fc414b4dae1e [2024-10-14 04:25:27,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:25:27,955 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:25:27,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:25:27,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:25:27,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:25:27,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:25:27" (1/1) ... [2024-10-14 04:25:27,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b4111e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:27, skipping insertion in model container [2024-10-14 04:25:27,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:25:27" (1/1) ... [2024-10-14 04:25:28,085 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:25:29,395 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_label43+token_ring.07.cil-2.c[381679,381692] [2024-10-14 04:25:29,427 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_label43+token_ring.07.cil-2.c[383339,383352] [2024-10-14 04:25:29,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:25:29,577 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:25:30,159 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_label43+token_ring.07.cil-2.c[381679,381692] [2024-10-14 04:25:30,163 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_label43+token_ring.07.cil-2.c[383339,383352] [2024-10-14 04:25:30,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:25:30,227 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:25:30,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:30 WrapperNode [2024-10-14 04:25:30,228 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:25:30,229 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:25:30,229 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:25:30,229 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:25:30,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:30" (1/1) ... [2024-10-14 04:25:30,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:30" (1/1) ... [2024-10-14 04:25:30,574 INFO L138 Inliner]: procedures = 58, calls = 63, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 12939 [2024-10-14 04:25:30,574 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:25:30,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:25:30,575 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:25:30,575 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:25:30,583 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:30" (1/1) ... [2024-10-14 04:25:30,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:30" (1/1) ... [2024-10-14 04:25:30,620 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:30" (1/1) ... [2024-10-14 04:25:30,809 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 04:25:30,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:30" (1/1) ... [2024-10-14 04:25:30,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:30" (1/1) ... [2024-10-14 04:25:30,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:30" (1/1) ... [2024-10-14 04:25:31,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:30" (1/1) ... [2024-10-14 04:25:31,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:30" (1/1) ... [2024-10-14 04:25:31,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:30" (1/1) ... [2024-10-14 04:25:31,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:25:31,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:25:31,321 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:25:31,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:25:31,322 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:30" (1/1) ... [2024-10-14 04:25:31,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:25:31,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:25:31,353 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 04:25:31,355 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 04:25:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:25:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-14 04:25:31,395 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-14 04:25:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-14 04:25:31,396 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-14 04:25:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-14 04:25:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-14 04:25:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-14 04:25:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-14 04:25:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-14 04:25:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-14 04:25:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-14 04:25:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-14 04:25:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-14 04:25:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-14 04:25:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:25:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:25:31,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:25:31,517 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:25:31,519 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:25:37,914 INFO L? ?]: Removed 1729 outVars from TransFormulas that were not future-live. [2024-10-14 04:25:37,914 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:25:38,019 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:25:38,020 INFO L314 CfgBuilder]: Removed 11 assume(true) statements. [2024-10-14 04:25:38,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:25:38 BoogieIcfgContainer [2024-10-14 04:25:38,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:25:38,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:25:38,023 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:25:38,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:25:38,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:25:27" (1/3) ... [2024-10-14 04:25:38,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242dda9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:25:38, skipping insertion in model container [2024-10-14 04:25:38,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:25:30" (2/3) ... [2024-10-14 04:25:38,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242dda9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:25:38, skipping insertion in model container [2024-10-14 04:25:38,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:25:38" (3/3) ... [2024-10-14 04:25:38,028 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.07.cil-2.c [2024-10-14 04:25:38,043 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:25:38,043 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 04:25:38,146 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:25:38,151 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;@67584ef9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:25:38,151 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 04:25:38,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 2364 states, 2331 states have (on average 1.8807378807378807) internal successors, (4384), 2336 states have internal predecessors, (4384), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 04:25:38,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:25:38,179 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:25:38,179 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:25:38,180 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:25:38,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:25:38,184 INFO L85 PathProgramCache]: Analyzing trace with hash -626584138, now seen corresponding path program 1 times [2024-10-14 04:25:38,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:25:38,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384935651] [2024-10-14 04:25:38,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:25:38,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:25:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:38,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:25:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:38,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:25:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:38,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:25:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:38,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:25:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:38,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:25:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:38,661 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 04:25:38,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:25:38,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384935651] [2024-10-14 04:25:38,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384935651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:25:38,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:25:38,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 04:25:38,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161189867] [2024-10-14 04:25:38,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:25:38,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:25:38,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:25:38,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:25:38,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:25:38,694 INFO L87 Difference]: Start difference. First operand has 2364 states, 2331 states have (on average 1.8807378807378807) internal successors, (4384), 2336 states have internal predecessors, (4384), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:39,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:25:39,938 INFO L93 Difference]: Finished difference Result 4797 states and 8982 transitions. [2024-10-14 04:25:39,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:25:39,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-10-14 04:25:39,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:25:39,962 INFO L225 Difference]: With dead ends: 4797 [2024-10-14 04:25:39,962 INFO L226 Difference]: Without dead ends: 2439 [2024-10-14 04:25:39,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:25:39,972 INFO L432 NwaCegarLoop]: 4173 mSDtfsCounter, 632 mSDsluCounter, 12112 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 16285 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 04:25:39,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 16285 Invalid, 731 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 04:25:39,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2024-10-14 04:25:40,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2359. [2024-10-14 04:25:40,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2359 states, 2328 states have (on average 1.8445017182130585) internal successors, (4294), 2331 states have internal predecessors, (4294), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-14 04:25:40,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 4338 transitions. [2024-10-14 04:25:40,107 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 4338 transitions. Word has length 112 [2024-10-14 04:25:40,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:25:40,108 INFO L471 AbstractCegarLoop]: Abstraction has 2359 states and 4338 transitions. [2024-10-14 04:25:40,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:40,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 4338 transitions. [2024-10-14 04:25:40,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:25:40,112 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:25:40,113 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:25:40,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:25:40,113 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:25:40,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:25:40,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1657625036, now seen corresponding path program 1 times [2024-10-14 04:25:40,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:25:40,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383557378] [2024-10-14 04:25:40,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:25:40,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:25:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:40,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:25:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:40,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:25:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:40,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:25:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:40,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:25:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:40,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:25:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:40,433 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 04:25:40,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:25:40,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383557378] [2024-10-14 04:25:40,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383557378] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:25:40,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:25:40,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:25:40,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415925045] [2024-10-14 04:25:40,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:25:40,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:25:40,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:25:40,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:25:40,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:25:40,438 INFO L87 Difference]: Start difference. First operand 2359 states and 4338 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:42,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:25:42,049 INFO L93 Difference]: Finished difference Result 2978 states and 5358 transitions. [2024-10-14 04:25:42,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:25:42,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-10-14 04:25:42,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:25:42,064 INFO L225 Difference]: With dead ends: 2978 [2024-10-14 04:25:42,064 INFO L226 Difference]: Without dead ends: 2753 [2024-10-14 04:25:42,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:25:42,069 INFO L432 NwaCegarLoop]: 4148 mSDtfsCounter, 4905 mSDsluCounter, 12430 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4919 SdHoareTripleChecker+Valid, 16578 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:25:42,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4919 Valid, 16578 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1458 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 04:25:42,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2753 states. [2024-10-14 04:25:42,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2753 to 2592. [2024-10-14 04:25:42,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2592 states, 2538 states have (on average 1.8270291568163908) internal successors, (4637), 2542 states have internal predecessors, (4637), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2024-10-14 04:25:42,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2592 states to 2592 states and 4716 transitions. [2024-10-14 04:25:42,156 INFO L78 Accepts]: Start accepts. Automaton has 2592 states and 4716 transitions. Word has length 112 [2024-10-14 04:25:42,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:25:42,157 INFO L471 AbstractCegarLoop]: Abstraction has 2592 states and 4716 transitions. [2024-10-14 04:25:42,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:42,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2592 states and 4716 transitions. [2024-10-14 04:25:42,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:25:42,162 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:25:42,162 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:25:42,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:25:42,163 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:25:42,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:25:42,163 INFO L85 PathProgramCache]: Analyzing trace with hash -663372240, now seen corresponding path program 1 times [2024-10-14 04:25:42,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:25:42,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170514690] [2024-10-14 04:25:42,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:25:42,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:25:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:42,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:25:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:42,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:25:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:42,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:25:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:42,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:25:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:42,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:25:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:42,510 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 04:25:42,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:25:42,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170514690] [2024-10-14 04:25:42,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170514690] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:25:42,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:25:42,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:25:42,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235110787] [2024-10-14 04:25:42,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:25:42,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:25:42,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:25:42,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:25:42,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:25:42,514 INFO L87 Difference]: Start difference. First operand 2592 states and 4716 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:44,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:25:44,623 INFO L93 Difference]: Finished difference Result 3533 states and 6264 transitions. [2024-10-14 04:25:44,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:25:44,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-10-14 04:25:44,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:25:44,633 INFO L225 Difference]: With dead ends: 3533 [2024-10-14 04:25:44,634 INFO L226 Difference]: Without dead ends: 3075 [2024-10-14 04:25:44,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:25:44,636 INFO L432 NwaCegarLoop]: 4292 mSDtfsCounter, 4918 mSDsluCounter, 16919 mSDsCounter, 0 mSdLazyCounter, 2388 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4932 SdHoareTripleChecker+Valid, 21211 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:25:44,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4932 Valid, 21211 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2388 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 04:25:44,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3075 states. [2024-10-14 04:25:44,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3075 to 2808. [2024-10-14 04:25:44,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2808 states, 2731 states have (on average 1.8110582204320762) internal successors, (4946), 2736 states have internal predecessors, (4946), 55 states have call successors, (55), 19 states have call predecessors, (55), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2024-10-14 04:25:44,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2808 states to 2808 states and 5059 transitions. [2024-10-14 04:25:44,713 INFO L78 Accepts]: Start accepts. Automaton has 2808 states and 5059 transitions. Word has length 112 [2024-10-14 04:25:44,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:25:44,714 INFO L471 AbstractCegarLoop]: Abstraction has 2808 states and 5059 transitions. [2024-10-14 04:25:44,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:44,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2808 states and 5059 transitions. [2024-10-14 04:25:44,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:25:44,716 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:25:44,716 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:25:44,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:25:44,716 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:25:44,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:25:44,717 INFO L85 PathProgramCache]: Analyzing trace with hash 688012978, now seen corresponding path program 1 times [2024-10-14 04:25:44,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:25:44,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736699265] [2024-10-14 04:25:44,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:25:44,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:25:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:44,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:25:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:44,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:25:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:44,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:25:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:44,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:25:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:44,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:25:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:44,910 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 04:25:44,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:25:44,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736699265] [2024-10-14 04:25:44,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736699265] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:25:44,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:25:44,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:25:44,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639354585] [2024-10-14 04:25:44,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:25:44,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:25:44,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:25:44,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:25:44,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:25:44,916 INFO L87 Difference]: Start difference. First operand 2808 states and 5059 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:47,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:25:47,035 INFO L93 Difference]: Finished difference Result 4346 states and 7585 transitions. [2024-10-14 04:25:47,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:25:47,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-10-14 04:25:47,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:25:47,048 INFO L225 Difference]: With dead ends: 4346 [2024-10-14 04:25:47,048 INFO L226 Difference]: Without dead ends: 3672 [2024-10-14 04:25:47,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:25:47,052 INFO L432 NwaCegarLoop]: 4290 mSDtfsCounter, 4916 mSDsluCounter, 16919 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4930 SdHoareTripleChecker+Valid, 21209 SdHoareTripleChecker+Invalid, 2441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:25:47,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4930 Valid, 21209 Invalid, 2441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 04:25:47,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3672 states. [2024-10-14 04:25:47,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3672 to 3241. [2024-10-14 04:25:47,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3241 states, 3118 states have (on average 1.784797947402181) internal successors, (5565), 3125 states have internal predecessors, (5565), 87 states have call successors, (87), 31 states have call predecessors, (87), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-14 04:25:47,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 5750 transitions. [2024-10-14 04:25:47,209 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 5750 transitions. Word has length 112 [2024-10-14 04:25:47,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:25:47,209 INFO L471 AbstractCegarLoop]: Abstraction has 3241 states and 5750 transitions. [2024-10-14 04:25:47,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:47,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 5750 transitions. [2024-10-14 04:25:47,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:25:47,211 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:25:47,211 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:25:47,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 04:25:47,211 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:25:47,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:25:47,212 INFO L85 PathProgramCache]: Analyzing trace with hash -930961936, now seen corresponding path program 1 times [2024-10-14 04:25:47,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:25:47,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651357257] [2024-10-14 04:25:47,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:25:47,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:25:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:47,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:25:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:47,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:25:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:47,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:25:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:47,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:25:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:47,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:25:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:47,466 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 04:25:47,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:25:47,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651357257] [2024-10-14 04:25:47,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651357257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:25:47,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:25:47,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:25:47,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020252947] [2024-10-14 04:25:47,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:25:47,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:25:47,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:25:47,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:25:47,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:25:47,472 INFO L87 Difference]: Start difference. First operand 3241 states and 5750 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:48,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:25:48,594 INFO L93 Difference]: Finished difference Result 4767 states and 8267 transitions. [2024-10-14 04:25:48,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:25:48,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-10-14 04:25:48,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:25:48,606 INFO L225 Difference]: With dead ends: 4767 [2024-10-14 04:25:48,606 INFO L226 Difference]: Without dead ends: 3660 [2024-10-14 04:25:48,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:25:48,610 INFO L432 NwaCegarLoop]: 4135 mSDtfsCounter, 4757 mSDsluCounter, 12296 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4772 SdHoareTripleChecker+Valid, 16431 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 04:25:48,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4772 Valid, 16431 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 04:25:48,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3660 states. [2024-10-14 04:25:48,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3660 to 3241. [2024-10-14 04:25:48,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3241 states, 3118 states have (on average 1.7831943553559975) internal successors, (5560), 3125 states have internal predecessors, (5560), 87 states have call successors, (87), 31 states have call predecessors, (87), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-14 04:25:48,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 5745 transitions. [2024-10-14 04:25:48,697 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 5745 transitions. Word has length 112 [2024-10-14 04:25:48,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:25:48,697 INFO L471 AbstractCegarLoop]: Abstraction has 3241 states and 5745 transitions. [2024-10-14 04:25:48,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:48,698 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 5745 transitions. [2024-10-14 04:25:48,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:25:48,699 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:25:48,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:25:48,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 04:25:48,699 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:25:48,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:25:48,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1814470926, now seen corresponding path program 1 times [2024-10-14 04:25:48,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:25:48,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460199498] [2024-10-14 04:25:48,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:25:48,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:25:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:48,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:25:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:48,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:25:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:48,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:25:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:48,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:25:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:48,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:25:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:48,822 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 04:25:48,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:25:48,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460199498] [2024-10-14 04:25:48,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460199498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:25:48,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:25:48,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:25:48,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558781293] [2024-10-14 04:25:48,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:25:48,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:25:48,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:25:48,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:25:48,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:25:48,824 INFO L87 Difference]: Start difference. First operand 3241 states and 5745 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:49,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:25:49,843 INFO L93 Difference]: Finished difference Result 4761 states and 8241 transitions. [2024-10-14 04:25:49,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:25:49,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-10-14 04:25:49,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:25:49,856 INFO L225 Difference]: With dead ends: 4761 [2024-10-14 04:25:49,857 INFO L226 Difference]: Without dead ends: 3654 [2024-10-14 04:25:49,860 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 04:25:49,861 INFO L432 NwaCegarLoop]: 4135 mSDtfsCounter, 4657 mSDsluCounter, 16370 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4672 SdHoareTripleChecker+Valid, 20505 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 04:25:49,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4672 Valid, 20505 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 04:25:49,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2024-10-14 04:25:49,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 3241. [2024-10-14 04:25:49,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3241 states, 3118 states have (on average 1.781590763309814) internal successors, (5555), 3125 states have internal predecessors, (5555), 87 states have call successors, (87), 31 states have call predecessors, (87), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-14 04:25:49,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 5740 transitions. [2024-10-14 04:25:49,942 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 5740 transitions. Word has length 112 [2024-10-14 04:25:49,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:25:49,942 INFO L471 AbstractCegarLoop]: Abstraction has 3241 states and 5740 transitions. [2024-10-14 04:25:49,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:49,942 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 5740 transitions. [2024-10-14 04:25:49,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:25:49,944 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:25:49,944 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:25:49,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:25:49,944 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:25:49,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:25:49,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1842971216, now seen corresponding path program 1 times [2024-10-14 04:25:49,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:25:49,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048114979] [2024-10-14 04:25:49,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:25:49,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:25:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:50,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:25:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:50,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:25:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:50,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:25:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:50,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:25:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:50,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:25:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:50,172 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 04:25:50,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:25:50,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048114979] [2024-10-14 04:25:50,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048114979] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:25:50,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:25:50,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:25:50,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286812110] [2024-10-14 04:25:50,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:25:50,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:25:50,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:25:50,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:25:50,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:25:50,178 INFO L87 Difference]: Start difference. First operand 3241 states and 5740 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:51,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:25:51,183 INFO L93 Difference]: Finished difference Result 4754 states and 8213 transitions. [2024-10-14 04:25:51,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:25:51,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-10-14 04:25:51,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:25:51,197 INFO L225 Difference]: With dead ends: 4754 [2024-10-14 04:25:51,197 INFO L226 Difference]: Without dead ends: 3647 [2024-10-14 04:25:51,201 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 04:25:51,201 INFO L432 NwaCegarLoop]: 4135 mSDtfsCounter, 4759 mSDsluCounter, 12296 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4774 SdHoareTripleChecker+Valid, 16431 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 04:25:51,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4774 Valid, 16431 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 04:25:51,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3647 states. [2024-10-14 04:25:51,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3647 to 3241. [2024-10-14 04:25:51,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3241 states, 3118 states have (on average 1.7799871712636306) internal successors, (5550), 3125 states have internal predecessors, (5550), 87 states have call successors, (87), 31 states have call predecessors, (87), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-14 04:25:51,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 5735 transitions. [2024-10-14 04:25:51,323 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 5735 transitions. Word has length 112 [2024-10-14 04:25:51,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:25:51,324 INFO L471 AbstractCegarLoop]: Abstraction has 3241 states and 5735 transitions. [2024-10-14 04:25:51,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:51,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 5735 transitions. [2024-10-14 04:25:51,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:25:51,326 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:25:51,327 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:25:51,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:25:51,327 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:25:51,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:25:51,327 INFO L85 PathProgramCache]: Analyzing trace with hash 511414066, now seen corresponding path program 1 times [2024-10-14 04:25:51,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:25:51,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926537071] [2024-10-14 04:25:51,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:25:51,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:25:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:51,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:25:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:51,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:25:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:51,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:25:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:51,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:25:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:51,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:25:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:51,478 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 04:25:51,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:25:51,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926537071] [2024-10-14 04:25:51,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926537071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:25:51,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:25:51,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:25:51,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223665698] [2024-10-14 04:25:51,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:25:51,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:25:51,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:25:51,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:25:51,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:25:51,480 INFO L87 Difference]: Start difference. First operand 3241 states and 5735 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:52,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:25:52,569 INFO L93 Difference]: Finished difference Result 4742 states and 8175 transitions. [2024-10-14 04:25:52,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:25:52,570 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-10-14 04:25:52,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:25:52,578 INFO L225 Difference]: With dead ends: 4742 [2024-10-14 04:25:52,578 INFO L226 Difference]: Without dead ends: 3635 [2024-10-14 04:25:52,582 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 04:25:52,582 INFO L432 NwaCegarLoop]: 4135 mSDtfsCounter, 4755 mSDsluCounter, 12296 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4770 SdHoareTripleChecker+Valid, 16431 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 04:25:52,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4770 Valid, 16431 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 04:25:52,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3635 states. [2024-10-14 04:25:52,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3635 to 3241. [2024-10-14 04:25:52,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3241 states, 3118 states have (on average 1.7783835792174472) internal successors, (5545), 3125 states have internal predecessors, (5545), 87 states have call successors, (87), 31 states have call predecessors, (87), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-14 04:25:52,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 5730 transitions. [2024-10-14 04:25:52,666 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 5730 transitions. Word has length 112 [2024-10-14 04:25:52,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:25:52,666 INFO L471 AbstractCegarLoop]: Abstraction has 3241 states and 5730 transitions. [2024-10-14 04:25:52,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:52,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 5730 transitions. [2024-10-14 04:25:52,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:25:52,667 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:25:52,667 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:25:52,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:25:52,668 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:25:52,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:25:52,669 INFO L85 PathProgramCache]: Analyzing trace with hash -259319500, now seen corresponding path program 1 times [2024-10-14 04:25:52,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:25:52,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937726689] [2024-10-14 04:25:52,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:25:52,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:25:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:52,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:25:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:52,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:25:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:52,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:25:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:52,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:25:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:52,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:25:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:52,861 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 04:25:52,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:25:52,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937726689] [2024-10-14 04:25:52,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937726689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:25:52,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:25:52,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:25:52,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974176826] [2024-10-14 04:25:52,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:25:52,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:25:52,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:25:52,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:25:52,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:25:52,864 INFO L87 Difference]: Start difference. First operand 3241 states and 5730 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:55,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:25:55,132 INFO L93 Difference]: Finished difference Result 6242 states and 10548 transitions. [2024-10-14 04:25:55,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:25:55,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-10-14 04:25:55,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:25:55,142 INFO L225 Difference]: With dead ends: 6242 [2024-10-14 04:25:55,143 INFO L226 Difference]: Without dead ends: 5135 [2024-10-14 04:25:55,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:25:55,145 INFO L432 NwaCegarLoop]: 4288 mSDtfsCounter, 5146 mSDsluCounter, 16914 mSDsCounter, 0 mSdLazyCounter, 2244 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5168 SdHoareTripleChecker+Valid, 21202 SdHoareTripleChecker+Invalid, 2304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:25:55,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5168 Valid, 21202 Invalid, 2304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2244 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 04:25:55,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5135 states. [2024-10-14 04:25:55,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5135 to 4122. [2024-10-14 04:25:55,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4122 states, 3911 states have (on average 1.7371516236256712) internal successors, (6794), 3922 states have internal predecessors, (6794), 147 states have call successors, (147), 55 states have call predecessors, (147), 62 states have return successors, (180), 152 states have call predecessors, (180), 145 states have call successors, (180) [2024-10-14 04:25:55,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4122 states to 4122 states and 7121 transitions. [2024-10-14 04:25:55,269 INFO L78 Accepts]: Start accepts. Automaton has 4122 states and 7121 transitions. Word has length 112 [2024-10-14 04:25:55,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:25:55,270 INFO L471 AbstractCegarLoop]: Abstraction has 4122 states and 7121 transitions. [2024-10-14 04:25:55,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:55,270 INFO L276 IsEmpty]: Start isEmpty. Operand 4122 states and 7121 transitions. [2024-10-14 04:25:55,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:25:55,275 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:25:55,275 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:25:55,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 04:25:55,275 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:25:55,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:25:55,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1254013198, now seen corresponding path program 1 times [2024-10-14 04:25:55,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:25:55,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412087178] [2024-10-14 04:25:55,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:25:55,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:25:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:55,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:25:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:55,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:25:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:55,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:25:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:55,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:25:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:55,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:25:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:55,474 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 04:25:55,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:25:55,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412087178] [2024-10-14 04:25:55,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412087178] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:25:55,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:25:55,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:25:55,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669415381] [2024-10-14 04:25:55,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:25:55,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:25:55,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:25:55,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:25:55,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:25:55,476 INFO L87 Difference]: Start difference. First operand 4122 states and 7121 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:57,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:25:57,861 INFO L93 Difference]: Finished difference Result 9619 states and 15939 transitions. [2024-10-14 04:25:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:25:57,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-10-14 04:25:57,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:25:57,877 INFO L225 Difference]: With dead ends: 9619 [2024-10-14 04:25:57,878 INFO L226 Difference]: Without dead ends: 7631 [2024-10-14 04:25:57,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:25:57,883 INFO L432 NwaCegarLoop]: 4287 mSDtfsCounter, 4941 mSDsluCounter, 16911 mSDsCounter, 0 mSdLazyCounter, 2627 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4954 SdHoareTripleChecker+Valid, 21198 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:25:57,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4954 Valid, 21198 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2627 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 04:25:57,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7631 states. [2024-10-14 04:25:58,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7631 to 5793. [2024-10-14 04:25:58,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5793 states, 5410 states have (on average 1.688354898336414) internal successors, (9134), 5429 states have internal predecessors, (9134), 263 states have call successors, (263), 103 states have call predecessors, (263), 118 states have return successors, (358), 276 states have call predecessors, (358), 261 states have call successors, (358) [2024-10-14 04:25:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5793 states to 5793 states and 9755 transitions. [2024-10-14 04:25:58,089 INFO L78 Accepts]: Start accepts. Automaton has 5793 states and 9755 transitions. Word has length 112 [2024-10-14 04:25:58,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:25:58,089 INFO L471 AbstractCegarLoop]: Abstraction has 5793 states and 9755 transitions. [2024-10-14 04:25:58,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:25:58,089 INFO L276 IsEmpty]: Start isEmpty. Operand 5793 states and 9755 transitions. [2024-10-14 04:25:58,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:25:58,092 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:25:58,092 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:25:58,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 04:25:58,092 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:25:58,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:25:58,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1840289420, now seen corresponding path program 1 times [2024-10-14 04:25:58,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:25:58,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991714355] [2024-10-14 04:25:58,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:25:58,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:25:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:58,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:25:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:58,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:25:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:58,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:25:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:58,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:25:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:58,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:25:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:25:58,226 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 04:25:58,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:25:58,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991714355] [2024-10-14 04:25:58,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991714355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:25:58,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:25:58,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:25:58,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496816795] [2024-10-14 04:25:58,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:25:58,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:25:58,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:25:58,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:25:58,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:25:58,227 INFO L87 Difference]: Start difference. First operand 5793 states and 9755 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:26:00,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:26:00,915 INFO L93 Difference]: Finished difference Result 16012 states and 26135 transitions. [2024-10-14 04:26:00,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:26:00,915 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-10-14 04:26:00,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:26:00,947 INFO L225 Difference]: With dead ends: 16012 [2024-10-14 04:26:00,947 INFO L226 Difference]: Without dead ends: 12353 [2024-10-14 04:26:01,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:26:01,076 INFO L432 NwaCegarLoop]: 4288 mSDtfsCounter, 5074 mSDsluCounter, 16914 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5096 SdHoareTripleChecker+Valid, 21202 SdHoareTripleChecker+Invalid, 2278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:26:01,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5096 Valid, 21202 Invalid, 2278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 04:26:01,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12353 states. [2024-10-14 04:26:01,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12353 to 9214. [2024-10-14 04:26:01,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9214 states, 8495 states have (on average 1.6447321954090641) internal successors, (13972), 8530 states have internal predecessors, (13972), 487 states have call successors, (487), 199 states have call predecessors, (487), 230 states have return successors, (760), 516 states have call predecessors, (760), 485 states have call successors, (760) [2024-10-14 04:26:01,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9214 states to 9214 states and 15219 transitions. [2024-10-14 04:26:01,437 INFO L78 Accepts]: Start accepts. Automaton has 9214 states and 15219 transitions. Word has length 112 [2024-10-14 04:26:01,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:26:01,437 INFO L471 AbstractCegarLoop]: Abstraction has 9214 states and 15219 transitions. [2024-10-14 04:26:01,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:26:01,437 INFO L276 IsEmpty]: Start isEmpty. Operand 9214 states and 15219 transitions. [2024-10-14 04:26:01,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:26:01,442 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:26:01,442 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:26:01,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 04:26:01,443 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:26:01,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:26:01,443 INFO L85 PathProgramCache]: Analyzing trace with hash 496103090, now seen corresponding path program 1 times [2024-10-14 04:26:01,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:26:01,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742188339] [2024-10-14 04:26:01,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:26:01,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:26:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:01,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:26:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:01,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:26:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:01,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:26:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:01,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:26:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:01,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:26:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:01,570 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 04:26:01,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:26:01,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742188339] [2024-10-14 04:26:01,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742188339] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:26:01,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:26:01,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:26:01,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943696430] [2024-10-14 04:26:01,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:26:01,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:26:01,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:26:01,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:26:01,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:26:01,573 INFO L87 Difference]: Start difference. First operand 9214 states and 15219 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:26:04,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:26:04,591 INFO L93 Difference]: Finished difference Result 28783 states and 46745 transitions. [2024-10-14 04:26:04,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:26:04,591 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-10-14 04:26:04,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:26:04,646 INFO L225 Difference]: With dead ends: 28783 [2024-10-14 04:26:04,647 INFO L226 Difference]: Without dead ends: 21703 [2024-10-14 04:26:04,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:26:04,667 INFO L432 NwaCegarLoop]: 4288 mSDtfsCounter, 5038 mSDsluCounter, 16914 mSDsCounter, 0 mSdLazyCounter, 2205 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5060 SdHoareTripleChecker+Valid, 21202 SdHoareTripleChecker+Invalid, 2265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:26:04,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5060 Valid, 21202 Invalid, 2265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2205 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 04:26:04,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21703 states. [2024-10-14 04:26:05,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21703 to 16055. [2024-10-14 04:26:05,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16055 states, 14680 states have (on average 1.6129427792915532) internal successors, (23678), 14747 states have internal predecessors, (23678), 919 states have call successors, (919), 391 states have call predecessors, (919), 454 states have return successors, (1710), 980 states have call predecessors, (1710), 917 states have call successors, (1710) [2024-10-14 04:26:05,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16055 states to 16055 states and 26307 transitions. [2024-10-14 04:26:05,461 INFO L78 Accepts]: Start accepts. Automaton has 16055 states and 26307 transitions. Word has length 112 [2024-10-14 04:26:05,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:26:05,461 INFO L471 AbstractCegarLoop]: Abstraction has 16055 states and 26307 transitions. [2024-10-14 04:26:05,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:26:05,462 INFO L276 IsEmpty]: Start isEmpty. Operand 16055 states and 26307 transitions. [2024-10-14 04:26:05,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:26:05,469 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:26:05,470 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:26:05,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 04:26:05,470 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:26:05,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:26:05,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1922381388, now seen corresponding path program 1 times [2024-10-14 04:26:05,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:26:05,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928759961] [2024-10-14 04:26:05,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:26:05,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:26:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:05,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:26:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:05,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:26:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:05,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:26:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:05,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:26:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:05,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:26:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:05,720 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 04:26:05,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:26:05,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928759961] [2024-10-14 04:26:05,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928759961] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:26:05,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:26:05,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:26:05,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090303848] [2024-10-14 04:26:05,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:26:05,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:26:05,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:26:05,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:26:05,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:26:05,722 INFO L87 Difference]: Start difference. First operand 16055 states and 26307 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:26:09,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:26:09,912 INFO L93 Difference]: Finished difference Result 53846 states and 87783 transitions. [2024-10-14 04:26:09,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:26:09,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-10-14 04:26:09,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:26:10,020 INFO L225 Difference]: With dead ends: 53846 [2024-10-14 04:26:10,021 INFO L226 Difference]: Without dead ends: 39925 [2024-10-14 04:26:10,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:26:10,060 INFO L432 NwaCegarLoop]: 4288 mSDtfsCounter, 4912 mSDsluCounter, 16914 mSDsCounter, 0 mSdLazyCounter, 2451 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4925 SdHoareTripleChecker+Valid, 21202 SdHoareTripleChecker+Invalid, 2510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:26:10,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4925 Valid, 21202 Invalid, 2510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2451 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 04:26:10,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39925 states. [2024-10-14 04:26:11,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39925 to 29736. [2024-10-14 04:26:11,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29736 states, 27081 states have (on average 1.5934418965326242) internal successors, (43152), 27212 states have internal predecessors, (43152), 1751 states have call successors, (1751), 775 states have call predecessors, (1751), 902 states have return successors, (4064), 1876 states have call predecessors, (4064), 1749 states have call successors, (4064) [2024-10-14 04:26:11,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29736 states to 29736 states and 48967 transitions. [2024-10-14 04:26:11,874 INFO L78 Accepts]: Start accepts. Automaton has 29736 states and 48967 transitions. Word has length 112 [2024-10-14 04:26:11,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:26:11,875 INFO L471 AbstractCegarLoop]: Abstraction has 29736 states and 48967 transitions. [2024-10-14 04:26:11,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:26:11,875 INFO L276 IsEmpty]: Start isEmpty. Operand 29736 states and 48967 transitions. [2024-10-14 04:26:11,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:26:11,890 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:26:11,890 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:26:11,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 04:26:11,890 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:26:11,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:26:11,891 INFO L85 PathProgramCache]: Analyzing trace with hash 493454962, now seen corresponding path program 1 times [2024-10-14 04:26:11,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:26:11,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905698261] [2024-10-14 04:26:11,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:26:11,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:26:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:11,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:26:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:11,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:26:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:11,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:26:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:12,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:26:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:12,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:26:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:12,009 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 04:26:12,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:26:12,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905698261] [2024-10-14 04:26:12,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905698261] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:26:12,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:26:12,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:26:12,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018811192] [2024-10-14 04:26:12,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:26:12,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:26:12,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:26:12,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:26:12,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:26:12,011 INFO L87 Difference]: Start difference. First operand 29736 states and 48967 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:26:18,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:26:18,199 INFO L93 Difference]: Finished difference Result 103013 states and 170141 transitions. [2024-10-14 04:26:18,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:26:18,200 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-10-14 04:26:18,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:26:18,424 INFO L225 Difference]: With dead ends: 103013 [2024-10-14 04:26:18,424 INFO L226 Difference]: Without dead ends: 75411 [2024-10-14 04:26:18,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:26:18,501 INFO L432 NwaCegarLoop]: 4288 mSDtfsCounter, 4972 mSDsluCounter, 16914 mSDsCounter, 0 mSdLazyCounter, 2174 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4994 SdHoareTripleChecker+Valid, 21202 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:26:18,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4994 Valid, 21202 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2174 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 04:26:18,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75411 states. [2024-10-14 04:26:22,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75411 to 57097. [2024-10-14 04:26:22,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57097 states, 51946 states have (on average 1.58291302506449) internal successors, (82226), 52205 states have internal predecessors, (82226), 3351 states have call successors, (3351), 1543 states have call predecessors, (3351), 1798 states have return successors, (10166), 3604 states have call predecessors, (10166), 3349 states have call successors, (10166) [2024-10-14 04:26:22,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57097 states to 57097 states and 95743 transitions. [2024-10-14 04:26:22,811 INFO L78 Accepts]: Start accepts. Automaton has 57097 states and 95743 transitions. Word has length 112 [2024-10-14 04:26:22,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:26:22,812 INFO L471 AbstractCegarLoop]: Abstraction has 57097 states and 95743 transitions. [2024-10-14 04:26:22,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:26:22,812 INFO L276 IsEmpty]: Start isEmpty. Operand 57097 states and 95743 transitions. [2024-10-14 04:26:22,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 04:26:22,840 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:26:22,840 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:26:22,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 04:26:22,841 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:26:22,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:26:22,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1818311156, now seen corresponding path program 1 times [2024-10-14 04:26:22,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:26:22,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338910621] [2024-10-14 04:26:22,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:26:22,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:26:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:22,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:26:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:22,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:26:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:22,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:26:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:22,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 04:26:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:22,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:26:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:26:22,965 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 04:26:22,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:26:22,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338910621] [2024-10-14 04:26:22,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338910621] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:26:22,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:26:22,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:26:22,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108960072] [2024-10-14 04:26:22,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:26:22,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:26:22,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:26:22,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:26:22,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:26:22,967 INFO L87 Difference]: Start difference. First operand 57097 states and 95743 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)