./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_label42+token_ring.12.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.12.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7f05adfe3188223e40d6d03e9bb9b8e606803720f2852bb7411adc46181c52f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:23:24,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:23:24,188 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:23:24,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:23:24,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:23:24,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:23:24,227 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:23:24,227 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:23:24,228 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:23:24,228 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:23:24,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:23:24,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:23:24,230 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:23:24,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:23:24,232 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:23:24,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:23:24,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:23:24,233 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:23:24,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:23:24,234 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:23:24,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:23:24,238 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:23:24,238 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:23:24,238 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:23:24,238 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:23:24,239 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:23:24,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:23:24,239 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:23:24,240 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:23:24,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:23:24,241 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:23:24,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:23:24,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:23:24,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:23:24,242 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:23:24,242 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:23:24,242 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:23:24,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:23:24,243 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:23:24,243 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:23:24,243 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:23:24,244 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:23:24,244 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7f05adfe3188223e40d6d03e9bb9b8e606803720f2852bb7411adc46181c52f [2024-10-14 04:23:24,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:23:24,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:23:24,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:23:24,528 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:23:24,529 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:23:24,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.12.cil-1.c [2024-10-14 04:23:25,973 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:23:26,617 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:23:26,618 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.12.cil-1.c [2024-10-14 04:23:26,680 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0e6e2c06/7d593c54dcbe44bdbc9f412c6c52c1f1/FLAG53dabec40 [2024-10-14 04:23:26,696 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0e6e2c06/7d593c54dcbe44bdbc9f412c6c52c1f1 [2024-10-14 04:23:26,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:23:26,700 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:23:26,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:23:26,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:23:26,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:23:26,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:23:26" (1/1) ... [2024-10-14 04:23:26,713 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373f176f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:26, skipping insertion in model container [2024-10-14 04:23:26,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:23:26" (1/1) ... [2024-10-14 04:23:26,877 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:23:28,573 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_label42+token_ring.12.cil-1.c[378560,378573] [2024-10-14 04:23:28,613 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_label42+token_ring.12.cil-1.c[383339,383352] [2024-10-14 04:23:28,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:23:28,911 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:23:29,725 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_label42+token_ring.12.cil-1.c[378560,378573] [2024-10-14 04:23:29,732 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_label42+token_ring.12.cil-1.c[383339,383352] [2024-10-14 04:23:29,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:23:29,834 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:23:29,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:29 WrapperNode [2024-10-14 04:23:29,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:23:29,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:23:29,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:23:29,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:23:29,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:29" (1/1) ... [2024-10-14 04:23:29,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:29" (1/1) ... [2024-10-14 04:23:30,380 INFO L138 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 13239 [2024-10-14 04:23:30,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:23:30,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:23:30,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:23:30,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:23:30,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:29" (1/1) ... [2024-10-14 04:23:30,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:29" (1/1) ... [2024-10-14 04:23:30,449 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:29" (1/1) ... [2024-10-14 04:23:30,594 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 04:23:30,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:29" (1/1) ... [2024-10-14 04:23:30,594 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:29" (1/1) ... [2024-10-14 04:23:30,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:29" (1/1) ... [2024-10-14 04:23:30,764 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:29" (1/1) ... [2024-10-14 04:23:30,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:29" (1/1) ... [2024-10-14 04:23:30,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:29" (1/1) ... [2024-10-14 04:23:31,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:23:31,086 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:23:31,086 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:23:31,087 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:23:31,089 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:29" (1/1) ... [2024-10-14 04:23:31,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:23:31,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:23:31,150 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 04:23:31,153 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 04:23:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:23:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-14 04:23:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-14 04:23:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-14 04:23:31,215 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-14 04:23:31,215 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-14 04:23:31,215 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-14 04:23:31,216 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-14 04:23:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-14 04:23:31,219 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-14 04:23:31,219 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-14 04:23:31,219 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-14 04:23:31,219 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-14 04:23:31,219 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-14 04:23:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-14 04:23:31,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:23:31,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:23:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:23:31,451 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:23:31,455 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:23:39,164 INFO L? ?]: Removed 1759 outVars from TransFormulas that were not future-live. [2024-10-14 04:23:39,165 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:23:39,263 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:23:39,263 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-14 04:23:39,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:23:39 BoogieIcfgContainer [2024-10-14 04:23:39,263 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:23:39,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:23:39,268 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:23:39,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:23:39,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:23:26" (1/3) ... [2024-10-14 04:23:39,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e1a8116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:23:39, skipping insertion in model container [2024-10-14 04:23:39,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:29" (2/3) ... [2024-10-14 04:23:39,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e1a8116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:23:39, skipping insertion in model container [2024-10-14 04:23:39,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:23:39" (3/3) ... [2024-10-14 04:23:39,275 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.12.cil-1.c [2024-10-14 04:23:39,292 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:23:39,292 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 04:23:39,408 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:23:39,414 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;@2f7ece43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:23:39,414 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 04:23:39,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 2479 states, 2441 states have (on average 1.8758705448586646) internal successors, (4579), 2446 states have internal predecessors, (4579), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 04:23:39,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:23:39,469 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:39,470 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:39,471 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:39,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:39,475 INFO L85 PathProgramCache]: Analyzing trace with hash 446400829, now seen corresponding path program 1 times [2024-10-14 04:23:39,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:39,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058898891] [2024-10-14 04:23:39,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:39,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:39,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:40,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:23:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:40,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:23:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:40,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:23:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:40,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:23:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:40,160 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 04:23:40,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:40,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058898891] [2024-10-14 04:23:40,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058898891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:40,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:40,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 04:23:40,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205098706] [2024-10-14 04:23:40,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:40,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:23:40,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:40,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:23:40,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:23:40,200 INFO L87 Difference]: Start difference. First operand has 2479 states, 2441 states have (on average 1.8758705448586646) internal successors, (4579), 2446 states have internal predecessors, (4579), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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 04:23:42,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:42,198 INFO L93 Difference]: Finished difference Result 5083 states and 9494 transitions. [2024-10-14 04:23:42,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:23:42,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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 162 [2024-10-14 04:23:42,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:42,236 INFO L225 Difference]: With dead ends: 5083 [2024-10-14 04:23:42,236 INFO L226 Difference]: Without dead ends: 2604 [2024-10-14 04:23:42,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:23:42,256 INFO L432 NwaCegarLoop]: 4268 mSDtfsCounter, 993 mSDsluCounter, 12222 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 16490 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:42,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 16490 Invalid, 1131 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 04:23:42,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2024-10-14 04:23:42,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2474. [2024-10-14 04:23:42,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2438 states have (on average 1.8371616078753077) internal successors, (4479), 2441 states have internal predecessors, (4479), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 04:23:42,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 4533 transitions. [2024-10-14 04:23:42,429 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 4533 transitions. Word has length 162 [2024-10-14 04:23:42,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:42,430 INFO L471 AbstractCegarLoop]: Abstraction has 2474 states and 4533 transitions. [2024-10-14 04:23:42,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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 04:23:42,431 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 4533 transitions. [2024-10-14 04:23:42,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:23:42,436 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:42,436 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:42,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:23:42,437 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:42,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:42,438 INFO L85 PathProgramCache]: Analyzing trace with hash -2079094853, now seen corresponding path program 1 times [2024-10-14 04:23:42,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:42,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806356206] [2024-10-14 04:23:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:42,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:42,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:42,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:23:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:42,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:23:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:42,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:23:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:42,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:23:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:42,836 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 04:23:42,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:42,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806356206] [2024-10-14 04:23:42,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806356206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:42,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:42,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 04:23:42,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428745100] [2024-10-14 04:23:42,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:42,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:23:42,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:42,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:23:42,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:23:42,845 INFO L87 Difference]: Start difference. First operand 2474 states and 4533 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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 04:23:44,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:44,919 INFO L93 Difference]: Finished difference Result 2944 states and 5318 transitions. [2024-10-14 04:23:44,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:23:44,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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 162 [2024-10-14 04:23:44,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:44,935 INFO L225 Difference]: With dead ends: 2944 [2024-10-14 04:23:44,936 INFO L226 Difference]: Without dead ends: 2604 [2024-10-14 04:23:44,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:23:44,939 INFO L432 NwaCegarLoop]: 4264 mSDtfsCounter, 981 mSDsluCounter, 12213 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 16477 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:44,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 16477 Invalid, 1120 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 04:23:44,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2024-10-14 04:23:45,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2474. [2024-10-14 04:23:45,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2438 states have (on average 1.8367514356029533) internal successors, (4478), 2441 states have internal predecessors, (4478), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 04:23:45,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 4532 transitions. [2024-10-14 04:23:45,029 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 4532 transitions. Word has length 162 [2024-10-14 04:23:45,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:45,030 INFO L471 AbstractCegarLoop]: Abstraction has 2474 states and 4532 transitions. [2024-10-14 04:23:45,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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 04:23:45,033 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 4532 transitions. [2024-10-14 04:23:45,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:23:45,036 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:45,036 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:45,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:23:45,037 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:45,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:45,038 INFO L85 PathProgramCache]: Analyzing trace with hash 284746809, now seen corresponding path program 1 times [2024-10-14 04:23:45,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:45,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190968618] [2024-10-14 04:23:45,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:45,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:45,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:45,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:23:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:45,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:23:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:45,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:23:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:45,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:23:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:45,457 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 04:23:45,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:45,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190968618] [2024-10-14 04:23:45,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190968618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:45,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:45,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:23:45,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379281667] [2024-10-14 04:23:45,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:45,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:23:45,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:45,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:23:45,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:23:45,463 INFO L87 Difference]: Start difference. First operand 2474 states and 4532 transitions. Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 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 04:23:48,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:48,665 INFO L93 Difference]: Finished difference Result 3423 states and 6122 transitions. [2024-10-14 04:23:48,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:23:48,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 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 162 [2024-10-14 04:23:48,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:48,682 INFO L225 Difference]: With dead ends: 3423 [2024-10-14 04:23:48,682 INFO L226 Difference]: Without dead ends: 3088 [2024-10-14 04:23:48,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:23:48,687 INFO L432 NwaCegarLoop]: 4283 mSDtfsCounter, 5449 mSDsluCounter, 12796 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5468 SdHoareTripleChecker+Valid, 17079 SdHoareTripleChecker+Invalid, 2468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:48,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5468 Valid, 17079 Invalid, 2468 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [116 Valid, 2352 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-14 04:23:48,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3088 states. [2024-10-14 04:23:48,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3088 to 2827. [2024-10-14 04:23:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2827 states, 2763 states have (on average 1.8154180238870792) internal successors, (5016), 2767 states have internal predecessors, (5016), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-10-14 04:23:48,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 5115 transitions. [2024-10-14 04:23:48,789 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 5115 transitions. Word has length 162 [2024-10-14 04:23:48,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:48,790 INFO L471 AbstractCegarLoop]: Abstraction has 2827 states and 5115 transitions. [2024-10-14 04:23:48,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 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 04:23:48,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 5115 transitions. [2024-10-14 04:23:48,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:23:48,792 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:48,793 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:48,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:23:48,793 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:48,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:48,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1920621575, now seen corresponding path program 1 times [2024-10-14 04:23:48,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:48,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126825697] [2024-10-14 04:23:48,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:48,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:48,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:48,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:23:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:49,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:23:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:49,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:23:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:49,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:23:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:49,112 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 04:23:49,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:49,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126825697] [2024-10-14 04:23:49,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126825697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:49,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:49,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:49,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354539499] [2024-10-14 04:23:49,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:49,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:49,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:49,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:49,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:49,115 INFO L87 Difference]: Start difference. First operand 2827 states and 5115 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:23:52,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:52,989 INFO L93 Difference]: Finished difference Result 4278 states and 7548 transitions. [2024-10-14 04:23:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:23:52,989 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-14 04:23:52,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:53,005 INFO L225 Difference]: With dead ends: 4278 [2024-10-14 04:23:53,005 INFO L226 Difference]: Without dead ends: 3590 [2024-10-14 04:23:53,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:23:53,010 INFO L432 NwaCegarLoop]: 4441 mSDtfsCounter, 5484 mSDsluCounter, 17441 mSDsCounter, 0 mSdLazyCounter, 3740 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5503 SdHoareTripleChecker+Valid, 21882 SdHoareTripleChecker+Invalid, 3805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:53,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5503 Valid, 21882 Invalid, 3805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3740 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-14 04:23:53,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2024-10-14 04:23:53,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3153. [2024-10-14 04:23:53,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3153 states, 3061 states have (on average 1.796798431885005) internal successors, (5500), 3066 states have internal predecessors, (5500), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-10-14 04:23:53,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 5643 transitions. [2024-10-14 04:23:53,129 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 5643 transitions. Word has length 162 [2024-10-14 04:23:53,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:53,129 INFO L471 AbstractCegarLoop]: Abstraction has 3153 states and 5643 transitions. [2024-10-14 04:23:53,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:23:53,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 5643 transitions. [2024-10-14 04:23:53,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:23:53,133 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:53,133 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:53,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 04:23:53,134 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:53,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:53,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1510011209, now seen corresponding path program 1 times [2024-10-14 04:23:53,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:53,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518730607] [2024-10-14 04:23:53,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:53,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:53,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:53,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:23:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:53,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:23:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:53,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:23:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:53,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:23:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:53,464 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 04:23:53,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:53,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518730607] [2024-10-14 04:23:53,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518730607] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:53,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:53,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:53,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038389202] [2024-10-14 04:23:53,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:53,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:53,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:53,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:53,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:53,473 INFO L87 Difference]: Start difference. First operand 3153 states and 5643 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:23:56,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:56,880 INFO L93 Difference]: Finished difference Result 5531 states and 9624 transitions. [2024-10-14 04:23:56,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:23:56,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-14 04:23:56,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:56,903 INFO L225 Difference]: With dead ends: 5531 [2024-10-14 04:23:56,904 INFO L226 Difference]: Without dead ends: 4517 [2024-10-14 04:23:56,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:23:56,911 INFO L432 NwaCegarLoop]: 4241 mSDtfsCounter, 5596 mSDsluCounter, 16898 mSDsCounter, 0 mSdLazyCounter, 3099 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5615 SdHoareTripleChecker+Valid, 21139 SdHoareTripleChecker+Invalid, 3206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:56,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5615 Valid, 21139 Invalid, 3206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 3099 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-14 04:23:56,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4517 states. [2024-10-14 04:23:57,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4517 to 3806. [2024-10-14 04:23:57,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 3658 states have (on average 1.7684527063969382) internal successors, (6469), 3665 states have internal predecessors, (6469), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-14 04:23:57,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 6704 transitions. [2024-10-14 04:23:57,082 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 6704 transitions. Word has length 162 [2024-10-14 04:23:57,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:57,082 INFO L471 AbstractCegarLoop]: Abstraction has 3806 states and 6704 transitions. [2024-10-14 04:23:57,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:23:57,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 6704 transitions. [2024-10-14 04:23:57,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:23:57,085 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:57,086 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:57,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 04:23:57,086 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:57,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:57,086 INFO L85 PathProgramCache]: Analyzing trace with hash 997086265, now seen corresponding path program 1 times [2024-10-14 04:23:57,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:57,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216351364] [2024-10-14 04:23:57,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:57,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:57,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:57,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:23:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:57,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:23:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:57,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:23:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:57,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:23:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:57,397 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 04:23:57,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:57,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216351364] [2024-10-14 04:23:57,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216351364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:57,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:57,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:57,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171635973] [2024-10-14 04:23:57,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:57,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:57,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:57,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:57,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:57,402 INFO L87 Difference]: Start difference. First operand 3806 states and 6704 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:23:59,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:59,709 INFO L93 Difference]: Finished difference Result 6172 states and 10676 transitions. [2024-10-14 04:23:59,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:23:59,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-14 04:23:59,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:59,731 INFO L225 Difference]: With dead ends: 6172 [2024-10-14 04:23:59,731 INFO L226 Difference]: Without dead ends: 4505 [2024-10-14 04:23:59,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:23:59,739 INFO L432 NwaCegarLoop]: 4219 mSDtfsCounter, 5053 mSDsluCounter, 16637 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5073 SdHoareTripleChecker+Valid, 20856 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:59,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5073 Valid, 20856 Invalid, 1977 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 04:23:59,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4505 states. [2024-10-14 04:23:59,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4505 to 3806. [2024-10-14 04:23:59,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 3658 states have (on average 1.7670858392564244) internal successors, (6464), 3665 states have internal predecessors, (6464), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-14 04:23:59,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 6699 transitions. [2024-10-14 04:23:59,958 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 6699 transitions. Word has length 162 [2024-10-14 04:23:59,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:59,959 INFO L471 AbstractCegarLoop]: Abstraction has 3806 states and 6699 transitions. [2024-10-14 04:23:59,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:23:59,959 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 6699 transitions. [2024-10-14 04:23:59,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:23:59,962 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:59,963 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:59,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:23:59,963 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:59,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:59,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1138796937, now seen corresponding path program 1 times [2024-10-14 04:23:59,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:59,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490215856] [2024-10-14 04:23:59,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:59,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:00,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:24:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:00,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:24:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:00,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:24:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:00,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:24:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:00,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:24:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:00,293 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 04:24:00,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:24:00,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490215856] [2024-10-14 04:24:00,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490215856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:24:00,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:24:00,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:24:00,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260177263] [2024-10-14 04:24:00,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:24:00,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:24:00,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:24:00,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:24:00,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:24:00,296 INFO L87 Difference]: Start difference. First operand 3806 states and 6699 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:02,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:24:02,183 INFO L93 Difference]: Finished difference Result 6161 states and 10640 transitions. [2024-10-14 04:24:02,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:24:02,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-14 04:24:02,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:24:02,206 INFO L225 Difference]: With dead ends: 6161 [2024-10-14 04:24:02,206 INFO L226 Difference]: Without dead ends: 4494 [2024-10-14 04:24:02,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:24:02,216 INFO L432 NwaCegarLoop]: 4219 mSDtfsCounter, 5203 mSDsluCounter, 12509 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5223 SdHoareTripleChecker+Valid, 16728 SdHoareTripleChecker+Invalid, 1798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:24:02,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5223 Valid, 16728 Invalid, 1798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 04:24:02,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4494 states. [2024-10-14 04:24:02,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4494 to 3806. [2024-10-14 04:24:02,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 3658 states have (on average 1.7657189721159103) internal successors, (6459), 3665 states have internal predecessors, (6459), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-14 04:24:02,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 6694 transitions. [2024-10-14 04:24:02,434 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 6694 transitions. Word has length 162 [2024-10-14 04:24:02,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:24:02,436 INFO L471 AbstractCegarLoop]: Abstraction has 3806 states and 6694 transitions. [2024-10-14 04:24:02,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:02,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 6694 transitions. [2024-10-14 04:24:02,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:24:02,440 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:24:02,440 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:24:02,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:24:02,441 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:24:02,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:24:02,442 INFO L85 PathProgramCache]: Analyzing trace with hash -720908235, now seen corresponding path program 1 times [2024-10-14 04:24:02,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:24:02,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144973012] [2024-10-14 04:24:02,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:24:02,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:24:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:02,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:24:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:02,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:24:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:02,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:24:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:02,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:24:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:02,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:24:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:02,787 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 04:24:02,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:24:02,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144973012] [2024-10-14 04:24:02,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144973012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:24:02,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:24:02,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:24:02,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526439898] [2024-10-14 04:24:02,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:24:02,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:24:02,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:24:02,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:24:02,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:24:02,790 INFO L87 Difference]: Start difference. First operand 3806 states and 6694 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:06,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:24:06,552 INFO L93 Difference]: Finished difference Result 7915 states and 13503 transitions. [2024-10-14 04:24:06,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:24:06,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-14 04:24:06,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:24:06,578 INFO L225 Difference]: With dead ends: 7915 [2024-10-14 04:24:06,579 INFO L226 Difference]: Without dead ends: 6248 [2024-10-14 04:24:06,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:24:06,588 INFO L432 NwaCegarLoop]: 4439 mSDtfsCounter, 5467 mSDsluCounter, 17441 mSDsCounter, 0 mSdLazyCounter, 3661 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5486 SdHoareTripleChecker+Valid, 21880 SdHoareTripleChecker+Invalid, 3728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:24:06,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5486 Valid, 21880 Invalid, 3728 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3661 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-14 04:24:06,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6248 states. [2024-10-14 04:24:06,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6248 to 5127. [2024-10-14 04:24:06,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 4867 states have (on average 1.7279638380932814) internal successors, (8410), 4878 states have internal predecessors, (8410), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-10-14 04:24:06,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 8835 transitions. [2024-10-14 04:24:06,822 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 8835 transitions. Word has length 162 [2024-10-14 04:24:06,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:24:06,824 INFO L471 AbstractCegarLoop]: Abstraction has 5127 states and 8835 transitions. [2024-10-14 04:24:06,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:06,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 8835 transitions. [2024-10-14 04:24:06,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:24:06,827 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:24:06,827 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:24:06,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:24:06,828 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:24:06,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:24:06,829 INFO L85 PathProgramCache]: Analyzing trace with hash 678045367, now seen corresponding path program 1 times [2024-10-14 04:24:06,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:24:06,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564861607] [2024-10-14 04:24:06,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:24:06,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:24:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:06,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:24:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:06,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:24:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:07,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:24:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:07,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:24:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:07,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:24:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:07,090 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 04:24:07,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:24:07,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564861607] [2024-10-14 04:24:07,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564861607] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:24:07,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:24:07,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:24:07,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481959633] [2024-10-14 04:24:07,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:24:07,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:24:07,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:24:07,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:24:07,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:24:07,094 INFO L87 Difference]: Start difference. First operand 5127 states and 8835 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:08,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:24:08,695 INFO L93 Difference]: Finished difference Result 9259 states and 15717 transitions. [2024-10-14 04:24:08,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:24:08,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-14 04:24:08,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:24:08,721 INFO L225 Difference]: With dead ends: 9259 [2024-10-14 04:24:08,721 INFO L226 Difference]: Without dead ends: 6271 [2024-10-14 04:24:08,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:24:08,734 INFO L432 NwaCegarLoop]: 4219 mSDtfsCounter, 5202 mSDsluCounter, 12509 mSDsCounter, 0 mSdLazyCounter, 1679 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5222 SdHoareTripleChecker+Valid, 16728 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:24:08,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5222 Valid, 16728 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1679 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 04:24:08,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6271 states. [2024-10-14 04:24:08,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6271 to 5127. [2024-10-14 04:24:08,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 4867 states have (on average 1.7261146496815287) internal successors, (8401), 4878 states have internal predecessors, (8401), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-10-14 04:24:08,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 8826 transitions. [2024-10-14 04:24:08,957 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 8826 transitions. Word has length 162 [2024-10-14 04:24:08,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:24:08,957 INFO L471 AbstractCegarLoop]: Abstraction has 5127 states and 8826 transitions. [2024-10-14 04:24:08,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:08,958 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 8826 transitions. [2024-10-14 04:24:08,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:24:08,962 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:24:08,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:24:08,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 04:24:08,962 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:24:08,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:24:08,963 INFO L85 PathProgramCache]: Analyzing trace with hash -939395083, now seen corresponding path program 1 times [2024-10-14 04:24:08,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:24:08,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568820526] [2024-10-14 04:24:08,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:24:08,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:24:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:09,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:24:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:09,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:24:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:09,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:24:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:09,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:24:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:09,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:24:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:09,230 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 04:24:09,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:24:09,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568820526] [2024-10-14 04:24:09,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568820526] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:24:09,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:24:09,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:24:09,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474813169] [2024-10-14 04:24:09,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:24:09,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:24:09,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:24:09,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:24:09,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:24:09,232 INFO L87 Difference]: Start difference. First operand 5127 states and 8826 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:12,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:24:12,991 INFO L93 Difference]: Finished difference Result 12710 states and 21332 transitions. [2024-10-14 04:24:12,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:24:12,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-14 04:24:12,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:24:13,029 INFO L225 Difference]: With dead ends: 12710 [2024-10-14 04:24:13,030 INFO L226 Difference]: Without dead ends: 9722 [2024-10-14 04:24:13,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:24:13,045 INFO L432 NwaCegarLoop]: 4439 mSDtfsCounter, 5459 mSDsluCounter, 17441 mSDsCounter, 0 mSdLazyCounter, 3623 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5478 SdHoareTripleChecker+Valid, 21880 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:24:13,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5478 Valid, 21880 Invalid, 3690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3623 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-14 04:24:13,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9722 states. [2024-10-14 04:24:13,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9722 to 7779. [2024-10-14 04:24:13,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7779 states, 7295 states have (on average 1.6864976010966415) internal successors, (12303), 7314 states have internal predecessors, (12303), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-10-14 04:24:13,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7779 states to 7779 states and 13126 transitions. [2024-10-14 04:24:13,458 INFO L78 Accepts]: Start accepts. Automaton has 7779 states and 13126 transitions. Word has length 162 [2024-10-14 04:24:13,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:24:13,459 INFO L471 AbstractCegarLoop]: Abstraction has 7779 states and 13126 transitions. [2024-10-14 04:24:13,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:13,459 INFO L276 IsEmpty]: Start isEmpty. Operand 7779 states and 13126 transitions. [2024-10-14 04:24:13,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:24:13,468 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:24:13,468 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:24:13,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 04:24:13,470 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:24:13,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:24:13,471 INFO L85 PathProgramCache]: Analyzing trace with hash -575928585, now seen corresponding path program 1 times [2024-10-14 04:24:13,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:24:13,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343613544] [2024-10-14 04:24:13,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:24:13,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:24:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:13,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:24:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:13,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:24:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:13,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:24:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:13,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:24:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:13,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:24:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:13,741 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 04:24:13,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:24:13,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343613544] [2024-10-14 04:24:13,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343613544] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:24:13,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:24:13,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:24:13,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508071727] [2024-10-14 04:24:13,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:24:13,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:24:13,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:24:13,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:24:13,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:24:13,744 INFO L87 Difference]: Start difference. First operand 7779 states and 13126 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:17,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:24:17,639 INFO L93 Difference]: Finished difference Result 22316 states and 37122 transitions. [2024-10-14 04:24:17,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:24:17,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-14 04:24:17,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:24:17,700 INFO L225 Difference]: With dead ends: 22316 [2024-10-14 04:24:17,701 INFO L226 Difference]: Without dead ends: 16676 [2024-10-14 04:24:17,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:24:17,726 INFO L432 NwaCegarLoop]: 4439 mSDtfsCounter, 5458 mSDsluCounter, 17441 mSDsCounter, 0 mSdLazyCounter, 3610 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5477 SdHoareTripleChecker+Valid, 21880 SdHoareTripleChecker+Invalid, 3677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:24:17,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5477 Valid, 21880 Invalid, 3677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3610 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-14 04:24:17,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16676 states. [2024-10-14 04:24:18,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16676 to 13096. [2024-10-14 04:24:18,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13096 states, 12164 states have (on average 1.6544722130878) internal successors, (20125), 12199 states have internal predecessors, (20125), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-10-14 04:24:18,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13096 states to 13096 states and 21798 transitions. [2024-10-14 04:24:18,493 INFO L78 Accepts]: Start accepts. Automaton has 13096 states and 21798 transitions. Word has length 162 [2024-10-14 04:24:18,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:24:18,494 INFO L471 AbstractCegarLoop]: Abstraction has 13096 states and 21798 transitions. [2024-10-14 04:24:18,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:18,494 INFO L276 IsEmpty]: Start isEmpty. Operand 13096 states and 21798 transitions. [2024-10-14 04:24:18,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:24:18,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:24:18,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:24:18,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 04:24:18,506 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:24:18,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:24:18,506 INFO L85 PathProgramCache]: Analyzing trace with hash -287109195, now seen corresponding path program 1 times [2024-10-14 04:24:18,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:24:18,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727465028] [2024-10-14 04:24:18,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:24:18,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:24:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:18,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:24:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:18,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:24:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:18,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:24:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:18,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:24:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:18,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:24:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:18,773 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 04:24:18,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:24:18,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727465028] [2024-10-14 04:24:18,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727465028] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:24:18,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:24:18,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:24:18,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747913427] [2024-10-14 04:24:18,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:24:18,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:24:18,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:24:18,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:24:18,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:24:18,776 INFO L87 Difference]: Start difference. First operand 13096 states and 21798 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:23,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:24:23,335 INFO L93 Difference]: Finished difference Result 41527 states and 68892 transitions. [2024-10-14 04:24:23,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:24:23,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-14 04:24:23,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:24:23,424 INFO L225 Difference]: With dead ends: 41527 [2024-10-14 04:24:23,425 INFO L226 Difference]: Without dead ends: 30570 [2024-10-14 04:24:23,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:24:23,463 INFO L432 NwaCegarLoop]: 4241 mSDtfsCounter, 5557 mSDsluCounter, 16898 mSDsCounter, 0 mSdLazyCounter, 3005 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5576 SdHoareTripleChecker+Valid, 21139 SdHoareTripleChecker+Invalid, 3112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:24:23,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5576 Valid, 21139 Invalid, 3112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 3005 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-14 04:24:23,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30570 states. [2024-10-14 04:24:24,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30570 to 23761. [2024-10-14 04:24:24,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23761 states, 21933 states have (on average 1.6329275520904574) internal successors, (35815), 22000 states have internal predecessors, (35815), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-10-14 04:24:24,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23761 states to 23761 states and 39350 transitions. [2024-10-14 04:24:24,727 INFO L78 Accepts]: Start accepts. Automaton has 23761 states and 39350 transitions. Word has length 162 [2024-10-14 04:24:24,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:24:24,728 INFO L471 AbstractCegarLoop]: Abstraction has 23761 states and 39350 transitions. [2024-10-14 04:24:24,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:24,728 INFO L276 IsEmpty]: Start isEmpty. Operand 23761 states and 39350 transitions. [2024-10-14 04:24:24,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:24:24,743 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:24:24,743 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:24:24,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 04:24:24,744 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:24:24,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:24:24,744 INFO L85 PathProgramCache]: Analyzing trace with hash -831981769, now seen corresponding path program 1 times [2024-10-14 04:24:24,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:24:24,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486303737] [2024-10-14 04:24:24,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:24:24,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:24:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:24,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:24:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:24,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:24:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:24,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:24:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:24,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:24:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:24,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:24:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:24:24,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:24:24,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486303737] [2024-10-14 04:24:24,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486303737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:24:24,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:24:24,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:24:24,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496644980] [2024-10-14 04:24:24,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:24:24,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:24:24,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:24:24,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:24:24,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:24:24,979 INFO L87 Difference]: Start difference. First operand 23761 states and 39350 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:28,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:24:28,173 INFO L93 Difference]: Finished difference Result 52623 states and 87952 transitions. [2024-10-14 04:24:28,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:24:28,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-14 04:24:28,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:24:28,266 INFO L225 Difference]: With dead ends: 52623 [2024-10-14 04:24:28,267 INFO L226 Difference]: Without dead ends: 31001 [2024-10-14 04:24:28,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:24:28,313 INFO L432 NwaCegarLoop]: 4219 mSDtfsCounter, 5055 mSDsluCounter, 16637 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5075 SdHoareTripleChecker+Valid, 20856 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:24:28,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5075 Valid, 20856 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 04:24:28,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31001 states. [2024-10-14 04:24:29,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31001 to 23761. [2024-10-14 04:24:29,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23761 states, 21933 states have (on average 1.62996398121552) internal successors, (35750), 22000 states have internal predecessors, (35750), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-10-14 04:24:29,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23761 states to 23761 states and 39285 transitions. [2024-10-14 04:24:29,680 INFO L78 Accepts]: Start accepts. Automaton has 23761 states and 39285 transitions. Word has length 162 [2024-10-14 04:24:29,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:24:29,681 INFO L471 AbstractCegarLoop]: Abstraction has 23761 states and 39285 transitions. [2024-10-14 04:24:29,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:29,681 INFO L276 IsEmpty]: Start isEmpty. Operand 23761 states and 39285 transitions. [2024-10-14 04:24:29,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:24:29,695 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:24:29,695 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:24:29,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 04:24:29,696 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:24:29,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:24:29,696 INFO L85 PathProgramCache]: Analyzing trace with hash -156821643, now seen corresponding path program 1 times [2024-10-14 04:24:29,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:24:29,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293690552] [2024-10-14 04:24:29,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:24:29,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:24:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:29,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:24:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:29,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:24:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:29,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:24:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:29,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:24:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:29,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:24:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:29,934 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 04:24:29,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:24:29,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293690552] [2024-10-14 04:24:29,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293690552] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:24:29,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:24:29,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:24:29,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21360265] [2024-10-14 04:24:29,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:24:29,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:24:29,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:24:29,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:24:29,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:24:29,936 INFO L87 Difference]: Start difference. First operand 23761 states and 39285 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 04:24:36,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:24:36,776 INFO L93 Difference]: Finished difference Result 89546 states and 148256 transitions. [2024-10-14 04:24:36,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:24:36,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-14 04:24:36,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:24:36,992 INFO L225 Difference]: With dead ends: 89546 [2024-10-14 04:24:36,992 INFO L226 Difference]: Without dead ends: 67924 [2024-10-14 04:24:37,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:24:37,052 INFO L432 NwaCegarLoop]: 4437 mSDtfsCounter, 5885 mSDsluCounter, 17436 mSDsCounter, 0 mSdLazyCounter, 3530 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5917 SdHoareTripleChecker+Valid, 21873 SdHoareTripleChecker+Invalid, 3600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-14 04:24:37,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5917 Valid, 21873 Invalid, 3600 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 3530 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-14 04:24:37,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67924 states.