./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.08.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/token_ring.08.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 19daebdfafed51668fa57cd9e9dbb1892c2070de71da48d425d8df389215d260 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 21:08:40,040 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 21:08:40,110 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 21:08:40,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 21:08:40,119 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 21:08:40,140 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 21:08:40,141 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 21:08:40,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 21:08:40,142 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 21:08:40,142 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 21:08:40,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 21:08:40,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 21:08:40,143 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 21:08:40,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 21:08:40,146 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 21:08:40,146 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 21:08:40,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 21:08:40,147 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 21:08:40,148 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 21:08:40,148 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 21:08:40,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 21:08:40,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 21:08:40,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 21:08:40,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 21:08:40,150 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 21:08:40,150 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 21:08:40,151 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 21:08:40,151 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 21:08:40,151 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 21:08:40,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 21:08:40,152 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 21:08:40,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 21:08:40,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:08:40,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 21:08:40,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 21:08:40,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 21:08:40,153 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 21:08:40,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 21:08:40,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 21:08:40,154 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 21:08:40,154 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 21:08:40,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 21:08:40,154 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19daebdfafed51668fa57cd9e9dbb1892c2070de71da48d425d8df389215d260 [2024-11-11 21:08:40,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 21:08:40,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 21:08:40,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 21:08:40,439 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 21:08:40,439 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 21:08:40,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.08.cil-2.c [2024-11-11 21:08:41,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 21:08:42,152 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 21:08:42,153 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.08.cil-2.c [2024-11-11 21:08:42,168 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d0bdd22/11f51e1f8e08418789862bd6ba2e9416/FLAGee952212e [2024-11-11 21:08:42,505 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d0bdd22/11f51e1f8e08418789862bd6ba2e9416 [2024-11-11 21:08:42,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 21:08:42,508 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 21:08:42,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 21:08:42,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 21:08:42,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 21:08:42,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:08:42" (1/1) ... [2024-11-11 21:08:42,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b905a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:42, skipping insertion in model container [2024-11-11 21:08:42,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:08:42" (1/1) ... [2024-11-11 21:08:42,569 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 21:08:42,763 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.08.cil-2.c[671,684] [2024-11-11 21:08:42,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:08:42,888 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 21:08:42,900 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.08.cil-2.c[671,684] [2024-11-11 21:08:42,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:08:43,015 INFO L204 MainTranslator]: Completed translation [2024-11-11 21:08:43,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:43 WrapperNode [2024-11-11 21:08:43,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 21:08:43,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 21:08:43,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 21:08:43,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 21:08:43,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:43" (1/1) ... [2024-11-11 21:08:43,037 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:43" (1/1) ... [2024-11-11 21:08:43,070 INFO L138 Inliner]: procedures = 44, calls = 56, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 645 [2024-11-11 21:08:43,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 21:08:43,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 21:08:43,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 21:08:43,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 21:08:43,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:43" (1/1) ... [2024-11-11 21:08:43,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:43" (1/1) ... [2024-11-11 21:08:43,087 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:43" (1/1) ... [2024-11-11 21:08:43,109 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 21:08:43,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:43" (1/1) ... [2024-11-11 21:08:43,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:43" (1/1) ... [2024-11-11 21:08:43,124 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:43" (1/1) ... [2024-11-11 21:08:43,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:43" (1/1) ... [2024-11-11 21:08:43,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:43" (1/1) ... [2024-11-11 21:08:43,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:43" (1/1) ... [2024-11-11 21:08:43,143 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 21:08:43,144 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 21:08:43,144 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 21:08:43,145 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 21:08:43,145 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:43" (1/1) ... [2024-11-11 21:08:43,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:08:43,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:08:43,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 21:08:43,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 21:08:43,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 21:08:43,240 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-11 21:08:43,240 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-11 21:08:43,241 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 21:08:43,241 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 21:08:43,241 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 21:08:43,241 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 21:08:43,241 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 21:08:43,242 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 21:08:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 21:08:43,243 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 21:08:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 21:08:43,243 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 21:08:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 21:08:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 21:08:43,244 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 21:08:43,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 21:08:43,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 21:08:43,367 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 21:08:43,369 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 21:08:44,056 INFO L? ?]: Removed 77 outVars from TransFormulas that were not future-live. [2024-11-11 21:08:44,057 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 21:08:44,080 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 21:08:44,082 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-11 21:08:44,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:08:44 BoogieIcfgContainer [2024-11-11 21:08:44,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 21:08:44,086 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 21:08:44,087 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 21:08:44,090 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 21:08:44,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:08:42" (1/3) ... [2024-11-11 21:08:44,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1feab064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:08:44, skipping insertion in model container [2024-11-11 21:08:44,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:43" (2/3) ... [2024-11-11 21:08:44,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1feab064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:08:44, skipping insertion in model container [2024-11-11 21:08:44,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:08:44" (3/3) ... [2024-11-11 21:08:44,095 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.08.cil-2.c [2024-11-11 21:08:44,110 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 21:08:44,110 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 21:08:44,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 21:08:44,190 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;@2b0ea8d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 21:08:44,191 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 21:08:44,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 299 states, 266 states have (on average 1.631578947368421) internal successors, (434), 270 states have internal predecessors, (434), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-11 21:08:44,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:08:44,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:44,214 INFO L218 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] [2024-11-11 21:08:44,215 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:44,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:44,220 INFO L85 PathProgramCache]: Analyzing trace with hash 898218100, now seen corresponding path program 1 times [2024-11-11 21:08:44,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:44,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119023060] [2024-11-11 21:08:44,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:44,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:44,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:44,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 21:08:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:44,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 21:08:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:44,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 21:08:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:44,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 21:08:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:44,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:44,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:44,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119023060] [2024-11-11 21:08:44,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119023060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:44,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:44,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:08:44,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679488027] [2024-11-11 21:08:44,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:44,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:08:44,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:44,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:08:44,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:08:44,920 INFO L87 Difference]: Start difference. First operand has 299 states, 266 states have (on average 1.631578947368421) internal successors, (434), 270 states have internal predecessors, (434), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-11-11 21:08:46,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:46,392 INFO L93 Difference]: Finished difference Result 684 states and 1116 transitions. [2024-11-11 21:08:46,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:08:46,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 3 states have internal predecessors, (123), 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 134 [2024-11-11 21:08:46,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:46,414 INFO L225 Difference]: With dead ends: 684 [2024-11-11 21:08:46,417 INFO L226 Difference]: Without dead ends: 391 [2024-11-11 21:08:46,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:08:46,430 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 757 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:46,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 608 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 21:08:46,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-11 21:08:46,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 293. [2024-11-11 21:08:46,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 262 states have (on average 1.5458015267175573) internal successors, (405), 264 states have internal predecessors, (405), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-11 21:08:46,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 451 transitions. [2024-11-11 21:08:46,541 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 451 transitions. Word has length 134 [2024-11-11 21:08:46,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:46,543 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 451 transitions. [2024-11-11 21:08:46,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-11-11 21:08:46,544 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 451 transitions. [2024-11-11 21:08:46,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:08:46,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:46,549 INFO L218 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] [2024-11-11 21:08:46,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 21:08:46,553 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:46,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:46,553 INFO L85 PathProgramCache]: Analyzing trace with hash 36384498, now seen corresponding path program 1 times [2024-11-11 21:08:46,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:46,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513254269] [2024-11-11 21:08:46,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:46,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:46,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:46,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 21:08:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:46,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 21:08:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:46,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 21:08:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:46,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 21:08:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:46,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:46,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:46,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513254269] [2024-11-11 21:08:46,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513254269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:46,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:46,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:08:46,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542795392] [2024-11-11 21:08:46,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:46,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:08:46,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:46,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:08:46,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:08:46,924 INFO L87 Difference]: Start difference. First operand 293 states and 451 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 4 states have internal predecessors, (123), 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) [2024-11-11 21:08:49,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:49,022 INFO L93 Difference]: Finished difference Result 1053 states and 1660 transitions. [2024-11-11 21:08:49,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 21:08:49,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 4 states have internal predecessors, (123), 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 134 [2024-11-11 21:08:49,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:49,031 INFO L225 Difference]: With dead ends: 1053 [2024-11-11 21:08:49,032 INFO L226 Difference]: Without dead ends: 776 [2024-11-11 21:08:49,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:08:49,042 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 1126 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:49,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 1019 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 21:08:49,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2024-11-11 21:08:49,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 579. [2024-11-11 21:08:49,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 524 states have (on average 1.5572519083969465) internal successors, (816), 527 states have internal predecessors, (816), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-11-11 21:08:49,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 899 transitions. [2024-11-11 21:08:49,116 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 899 transitions. Word has length 134 [2024-11-11 21:08:49,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:49,118 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 899 transitions. [2024-11-11 21:08:49,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 4 states have internal predecessors, (123), 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) [2024-11-11 21:08:49,119 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 899 transitions. [2024-11-11 21:08:49,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:08:49,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:49,121 INFO L218 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] [2024-11-11 21:08:49,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 21:08:49,124 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:49,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:49,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1325617938, now seen corresponding path program 1 times [2024-11-11 21:08:49,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:49,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67977751] [2024-11-11 21:08:49,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:49,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:49,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:49,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 21:08:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:49,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 21:08:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:49,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 21:08:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:49,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 21:08:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:49,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:49,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67977751] [2024-11-11 21:08:49,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67977751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:49,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:49,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:49,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412584008] [2024-11-11 21:08:49,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:49,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:49,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:49,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:49,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:49,478 INFO L87 Difference]: Start difference. First operand 579 states and 899 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:08:52,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:52,212 INFO L93 Difference]: Finished difference Result 1734 states and 2736 transitions. [2024-11-11 21:08:52,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:08:52,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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 134 [2024-11-11 21:08:52,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:52,222 INFO L225 Difference]: With dead ends: 1734 [2024-11-11 21:08:52,222 INFO L226 Difference]: Without dead ends: 1171 [2024-11-11 21:08:52,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:08:52,225 INFO L435 NwaCegarLoop]: 447 mSDtfsCounter, 1143 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 2603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:52,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 1971 Invalid, 2603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 21:08:52,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2024-11-11 21:08:52,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 846. [2024-11-11 21:08:52,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 767 states have (on average 1.5501955671447196) internal successors, (1189), 771 states have internal predecessors, (1189), 58 states have call successors, (58), 19 states have call predecessors, (58), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-11-11 21:08:52,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1308 transitions. [2024-11-11 21:08:52,315 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1308 transitions. Word has length 134 [2024-11-11 21:08:52,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:52,316 INFO L471 AbstractCegarLoop]: Abstraction has 846 states and 1308 transitions. [2024-11-11 21:08:52,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:08:52,316 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1308 transitions. [2024-11-11 21:08:52,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:08:52,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:52,322 INFO L218 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] [2024-11-11 21:08:52,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 21:08:52,323 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:52,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:52,323 INFO L85 PathProgramCache]: Analyzing trace with hash 603314288, now seen corresponding path program 1 times [2024-11-11 21:08:52,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:52,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850738567] [2024-11-11 21:08:52,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:52,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:52,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:52,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 21:08:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:52,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 21:08:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:52,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 21:08:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:52,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 21:08:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:52,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:52,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:52,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850738567] [2024-11-11 21:08:52,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850738567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:52,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:52,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:52,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904486315] [2024-11-11 21:08:52,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:52,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:52,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:52,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:52,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:52,586 INFO L87 Difference]: Start difference. First operand 846 states and 1308 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:08:55,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:55,037 INFO L93 Difference]: Finished difference Result 2738 states and 4311 transitions. [2024-11-11 21:08:55,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:08:55,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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 134 [2024-11-11 21:08:55,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:55,050 INFO L225 Difference]: With dead ends: 2738 [2024-11-11 21:08:55,050 INFO L226 Difference]: Without dead ends: 1908 [2024-11-11 21:08:55,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:08:55,054 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 1225 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:55,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 1261 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 21:08:55,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2024-11-11 21:08:55,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1381. [2024-11-11 21:08:55,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 1254 states have (on average 1.543859649122807) internal successors, (1936), 1260 states have internal predecessors, (1936), 92 states have call successors, (92), 31 states have call predecessors, (92), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-11-11 21:08:55,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 2131 transitions. [2024-11-11 21:08:55,155 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 2131 transitions. Word has length 134 [2024-11-11 21:08:55,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:55,156 INFO L471 AbstractCegarLoop]: Abstraction has 1381 states and 2131 transitions. [2024-11-11 21:08:55,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:08:55,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 2131 transitions. [2024-11-11 21:08:55,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:08:55,158 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:55,158 INFO L218 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] [2024-11-11 21:08:55,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 21:08:55,159 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:55,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:55,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1689766738, now seen corresponding path program 1 times [2024-11-11 21:08:55,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:55,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936881232] [2024-11-11 21:08:55,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:55,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:55,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:55,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 21:08:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:55,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 21:08:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:55,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 21:08:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:55,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 21:08:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:55,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:55,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:55,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936881232] [2024-11-11 21:08:55,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936881232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:55,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:55,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:55,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528577846] [2024-11-11 21:08:55,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:55,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:55,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:55,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:55,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:55,411 INFO L87 Difference]: Start difference. First operand 1381 states and 2131 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:08:57,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:57,815 INFO L93 Difference]: Finished difference Result 4673 states and 7330 transitions. [2024-11-11 21:08:57,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:08:57,816 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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 134 [2024-11-11 21:08:57,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:57,834 INFO L225 Difference]: With dead ends: 4673 [2024-11-11 21:08:57,834 INFO L226 Difference]: Without dead ends: 3308 [2024-11-11 21:08:57,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:08:57,840 INFO L435 NwaCegarLoop]: 445 mSDtfsCounter, 1135 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 2540 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 2599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:57,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 1969 Invalid, 2599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2540 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 21:08:57,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3308 states. [2024-11-11 21:08:57,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3308 to 2452. [2024-11-11 21:08:57,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2452 states, 2229 states have (on average 1.5388066397487663) internal successors, (3430), 2239 states have internal predecessors, (3430), 160 states have call successors, (160), 55 states have call predecessors, (160), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-11-11 21:08:58,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2452 states to 2452 states and 3783 transitions. [2024-11-11 21:08:58,006 INFO L78 Accepts]: Start accepts. Automaton has 2452 states and 3783 transitions. Word has length 134 [2024-11-11 21:08:58,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:58,007 INFO L471 AbstractCegarLoop]: Abstraction has 2452 states and 3783 transitions. [2024-11-11 21:08:58,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:08:58,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2452 states and 3783 transitions. [2024-11-11 21:08:58,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:08:58,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:58,010 INFO L218 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] [2024-11-11 21:08:58,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 21:08:58,010 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:58,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:58,011 INFO L85 PathProgramCache]: Analyzing trace with hash 37378224, now seen corresponding path program 1 times [2024-11-11 21:08:58,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:58,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797219212] [2024-11-11 21:08:58,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:58,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:58,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:58,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 21:08:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:58,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 21:08:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:58,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 21:08:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:58,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 21:08:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:58,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:58,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:58,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797219212] [2024-11-11 21:08:58,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797219212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:58,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:58,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:58,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927305625] [2024-11-11 21:08:58,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:58,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:58,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:58,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:58,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:58,237 INFO L87 Difference]: Start difference. First operand 2452 states and 3783 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:09:00,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:00,647 INFO L93 Difference]: Finished difference Result 8542 states and 13384 transitions. [2024-11-11 21:09:00,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:09:00,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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 134 [2024-11-11 21:09:00,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:00,677 INFO L225 Difference]: With dead ends: 8542 [2024-11-11 21:09:00,678 INFO L226 Difference]: Without dead ends: 6106 [2024-11-11 21:09:00,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:09:00,689 INFO L435 NwaCegarLoop]: 445 mSDtfsCounter, 1131 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 2531 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 2590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:00,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 1969 Invalid, 2590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2531 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 21:09:00,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6106 states. [2024-11-11 21:09:00,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6106 to 4599. [2024-11-11 21:09:00,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4599 states, 4184 states have (on average 1.5353728489483747) internal successors, (6424), 4202 states have internal predecessors, (6424), 296 states have call successors, (296), 103 states have call predecessors, (296), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2024-11-11 21:09:00,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4599 states to 4599 states and 7111 transitions. [2024-11-11 21:09:00,987 INFO L78 Accepts]: Start accepts. Automaton has 4599 states and 7111 transitions. Word has length 134 [2024-11-11 21:09:00,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:00,987 INFO L471 AbstractCegarLoop]: Abstraction has 4599 states and 7111 transitions. [2024-11-11 21:09:00,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:09:00,988 INFO L276 IsEmpty]: Start isEmpty. Operand 4599 states and 7111 transitions. [2024-11-11 21:09:00,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:09:00,991 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:00,991 INFO L218 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] [2024-11-11 21:09:00,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 21:09:00,992 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:00,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:00,992 INFO L85 PathProgramCache]: Analyzing trace with hash 508734574, now seen corresponding path program 1 times [2024-11-11 21:09:00,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:00,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559694179] [2024-11-11 21:09:00,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:00,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:01,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:01,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 21:09:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:01,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 21:09:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:01,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 21:09:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:01,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 21:09:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:01,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:01,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:01,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559694179] [2024-11-11 21:09:01,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559694179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:01,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:01,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:01,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065801947] [2024-11-11 21:09:01,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:01,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:01,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:01,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:01,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:01,247 INFO L87 Difference]: Start difference. First operand 4599 states and 7111 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:09:03,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:03,996 INFO L93 Difference]: Finished difference Result 16279 states and 25550 transitions. [2024-11-11 21:09:03,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:09:03,997 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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 134 [2024-11-11 21:09:03,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:04,048 INFO L225 Difference]: With dead ends: 16279 [2024-11-11 21:09:04,049 INFO L226 Difference]: Without dead ends: 11696 [2024-11-11 21:09:04,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:09:04,067 INFO L435 NwaCegarLoop]: 445 mSDtfsCounter, 1127 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 2522 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:04,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 1969 Invalid, 2581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2522 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 21:09:04,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11696 states. [2024-11-11 21:09:04,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11696 to 8906. [2024-11-11 21:09:04,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8906 states, 8107 states have (on average 1.5332428765264585) internal successors, (12430), 8141 states have internal predecessors, (12430), 568 states have call successors, (568), 199 states have call predecessors, (568), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-11 21:09:04,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8906 states to 8906 states and 13839 transitions. [2024-11-11 21:09:04,640 INFO L78 Accepts]: Start accepts. Automaton has 8906 states and 13839 transitions. Word has length 134 [2024-11-11 21:09:04,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:04,641 INFO L471 AbstractCegarLoop]: Abstraction has 8906 states and 13839 transitions. [2024-11-11 21:09:04,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:09:04,642 INFO L276 IsEmpty]: Start isEmpty. Operand 8906 states and 13839 transitions. [2024-11-11 21:09:04,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:09:04,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:04,649 INFO L218 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] [2024-11-11 21:09:04,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 21:09:04,650 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:04,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:04,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1138628368, now seen corresponding path program 1 times [2024-11-11 21:09:04,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:04,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300502723] [2024-11-11 21:09:04,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:04,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:04,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:04,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 21:09:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:04,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 21:09:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:04,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 21:09:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:04,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 21:09:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:04,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:04,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:04,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300502723] [2024-11-11 21:09:04,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300502723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:04,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:04,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:04,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862685130] [2024-11-11 21:09:04,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:04,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:04,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:04,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:04,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:04,874 INFO L87 Difference]: Start difference. First operand 8906 states and 13839 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:09:07,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:07,957 INFO L93 Difference]: Finished difference Result 31752 states and 50072 transitions. [2024-11-11 21:09:07,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:09:07,958 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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 134 [2024-11-11 21:09:07,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:08,114 INFO L225 Difference]: With dead ends: 31752 [2024-11-11 21:09:08,115 INFO L226 Difference]: Without dead ends: 22862 [2024-11-11 21:09:08,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:09:08,147 INFO L435 NwaCegarLoop]: 445 mSDtfsCounter, 1129 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 2508 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:08,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 1969 Invalid, 2567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2508 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 21:09:08,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22862 states. [2024-11-11 21:09:09,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22862 to 17549. [2024-11-11 21:09:09,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17549 states, 15982 states have (on average 1.5319734701539232) internal successors, (24484), 16048 states have internal predecessors, (24484), 1112 states have call successors, (1112), 391 states have call predecessors, (1112), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2024-11-11 21:09:09,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17549 states to 17549 states and 27499 transitions. [2024-11-11 21:09:09,432 INFO L78 Accepts]: Start accepts. Automaton has 17549 states and 27499 transitions. Word has length 134 [2024-11-11 21:09:09,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:09,432 INFO L471 AbstractCegarLoop]: Abstraction has 17549 states and 27499 transitions. [2024-11-11 21:09:09,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:09:09,433 INFO L276 IsEmpty]: Start isEmpty. Operand 17549 states and 27499 transitions. [2024-11-11 21:09:09,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:09:09,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:09,450 INFO L218 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] [2024-11-11 21:09:09,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 21:09:09,451 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:09,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:09,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1024988206, now seen corresponding path program 1 times [2024-11-11 21:09:09,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:09,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048282973] [2024-11-11 21:09:09,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:09,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:09,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:09,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 21:09:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:09,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 21:09:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:09,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 21:09:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:09,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 21:09:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:09,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:09,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:09,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048282973] [2024-11-11 21:09:09,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048282973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:09,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:09,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:09,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492877032] [2024-11-11 21:09:09,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:09,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:09,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:09,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:09,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:09,652 INFO L87 Difference]: Start difference. First operand 17549 states and 27499 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:09:13,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:13,645 INFO L93 Difference]: Finished difference Result 62634 states and 99590 transitions. [2024-11-11 21:09:13,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:09:13,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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 134 [2024-11-11 21:09:13,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:13,864 INFO L225 Difference]: With dead ends: 62634 [2024-11-11 21:09:13,864 INFO L226 Difference]: Without dead ends: 45101 [2024-11-11 21:09:13,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:09:13,951 INFO L435 NwaCegarLoop]: 445 mSDtfsCounter, 1125 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 2480 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 2539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:13,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 1969 Invalid, 2539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2480 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 21:09:13,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45101 states. [2024-11-11 21:09:15,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45101 to 34961. [2024-11-11 21:09:15,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34961 states, 31858 states have (on average 1.5321740222236173) internal successors, (48812), 31988 states have internal predecessors, (48812), 2200 states have call successors, (2200), 775 states have call predecessors, (2200), 902 states have return successors, (4513), 2325 states have call predecessors, (4513), 2198 states have call successors, (4513) [2024-11-11 21:09:16,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34961 states to 34961 states and 55525 transitions. [2024-11-11 21:09:16,128 INFO L78 Accepts]: Start accepts. Automaton has 34961 states and 55525 transitions. Word has length 134 [2024-11-11 21:09:16,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:16,129 INFO L471 AbstractCegarLoop]: Abstraction has 34961 states and 55525 transitions. [2024-11-11 21:09:16,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:09:16,129 INFO L276 IsEmpty]: Start isEmpty. Operand 34961 states and 55525 transitions. [2024-11-11 21:09:16,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:09:16,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:16,151 INFO L218 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] [2024-11-11 21:09:16,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 21:09:16,151 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:16,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:16,152 INFO L85 PathProgramCache]: Analyzing trace with hash -948177172, now seen corresponding path program 1 times [2024-11-11 21:09:16,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:16,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322205779] [2024-11-11 21:09:16,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:16,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:16,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:16,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 21:09:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:16,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 21:09:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:16,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 21:09:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:16,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 21:09:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:16,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:16,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322205779] [2024-11-11 21:09:16,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322205779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:16,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:16,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:16,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360354312] [2024-11-11 21:09:16,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:16,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:16,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:16,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:16,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:16,337 INFO L87 Difference]: Start difference. First operand 34961 states and 55525 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:09:22,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:22,757 INFO L93 Difference]: Finished difference Result 140016 states and 224284 transitions. [2024-11-11 21:09:22,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:09:22,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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 134 [2024-11-11 21:09:22,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:23,287 INFO L225 Difference]: With dead ends: 140016 [2024-11-11 21:09:23,287 INFO L226 Difference]: Without dead ends: 105071 [2024-11-11 21:09:23,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:09:23,412 INFO L435 NwaCegarLoop]: 443 mSDtfsCounter, 1454 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 2460 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:23,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 1959 Invalid, 2522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2460 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 21:09:23,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105071 states. [2024-11-11 21:09:27,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105071 to 69526. [2024-11-11 21:09:27,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69526 states, 63479 states have (on average 1.5343341892594402) internal successors, (97398), 63737 states have internal predecessors, (97398), 4248 states have call successors, (4248), 1543 states have call predecessors, (4248), 1798 states have return successors, (11063), 4501 states have call predecessors, (11063), 4246 states have call successors, (11063) [2024-11-11 21:09:27,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69526 states to 69526 states and 112709 transitions. [2024-11-11 21:09:27,921 INFO L78 Accepts]: Start accepts. Automaton has 69526 states and 112709 transitions. Word has length 134 [2024-11-11 21:09:27,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:27,922 INFO L471 AbstractCegarLoop]: Abstraction has 69526 states and 112709 transitions. [2024-11-11 21:09:27,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:09:27,923 INFO L276 IsEmpty]: Start isEmpty. Operand 69526 states and 112709 transitions. [2024-11-11 21:09:27,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 21:09:27,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:27,978 INFO L218 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] [2024-11-11 21:09:27,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 21:09:27,979 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:27,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:27,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1204929646, now seen corresponding path program 1 times [2024-11-11 21:09:27,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:27,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444827575] [2024-11-11 21:09:27,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:27,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:28,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:28,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 21:09:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:28,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 21:09:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:28,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 21:09:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:28,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 21:09:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:28,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:28,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:28,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444827575] [2024-11-11 21:09:28,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444827575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:28,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:28,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:28,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023670404] [2024-11-11 21:09:28,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:28,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:28,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:28,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:28,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:28,220 INFO L87 Difference]: Start difference. First operand 69526 states and 112709 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-11 21:09:39,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:39,597 INFO L93 Difference]: Finished difference Result 275067 states and 449354 transitions. [2024-11-11 21:09:39,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:09:39,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 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 134 [2024-11-11 21:09:39,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:40,831 INFO L225 Difference]: With dead ends: 275067 [2024-11-11 21:09:40,831 INFO L226 Difference]: Without dead ends: 205557 [2024-11-11 21:09:40,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:09:41,000 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 1274 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 2763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:41,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 1307 Invalid, 2763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 21:09:41,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205557 states.