./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.12.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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.12.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 962623ba1d780e7ad35b9b6d7f5839750bc2f361556d46080824a3701cf71595 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:08:46,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:08:46,457 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:08:46,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:08:46,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:08:46,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:08:46,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:08:46,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:08:46,507 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:08:46,508 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:08:46,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:08:46,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:08:46,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:08:46,512 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:08:46,512 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:08:46,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:08:46,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:08:46,513 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:08:46,513 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:08:46,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:08:46,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:08:46,517 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:08:46,517 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:08:46,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:08:46,518 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:08:46,518 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:08:46,518 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:08:46,518 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:08:46,519 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:08:46,519 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:08:46,519 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:08:46,519 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:08:46,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:08:46,520 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:08:46,520 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:08:46,520 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:08:46,520 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:08:46,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:08:46,521 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:08:46,521 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:08:46,521 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:08:46,523 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:08:46,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 962623ba1d780e7ad35b9b6d7f5839750bc2f361556d46080824a3701cf71595 [2024-11-16 08:08:46,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:08:46,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:08:46,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:08:46,770 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:08:46,770 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:08:46,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.12.cil-1.c [2024-11-16 08:08:48,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:08:48,387 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:08:48,388 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.12.cil-1.c [2024-11-16 08:08:48,415 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f488704/d0f08ac7992c495fba606ea1fb55e318/FLAG43114d61f [2024-11-16 08:08:48,722 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f488704/d0f08ac7992c495fba606ea1fb55e318 [2024-11-16 08:08:48,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:08:48,725 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:08:48,726 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:08:48,727 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:08:48,731 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:08:48,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:08:48" (1/1) ... [2024-11-16 08:08:48,732 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff2704f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:48, skipping insertion in model container [2024-11-16 08:08:48,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:08:48" (1/1) ... [2024-11-16 08:08:48,779 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:08:48,963 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.12.cil-1.c[671,684] [2024-11-16 08:08:49,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:08:49,153 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:08:49,164 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.12.cil-1.c[671,684] [2024-11-16 08:08:49,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:08:49,271 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:08:49,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:49 WrapperNode [2024-11-16 08:08:49,271 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:08:49,272 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:08:49,272 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:08:49,272 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:08:49,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:49" (1/1) ... [2024-11-16 08:08:49,296 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:49" (1/1) ... [2024-11-16 08:08:49,335 INFO L138 Inliner]: procedures = 52, calls = 68, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 870 [2024-11-16 08:08:49,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:08:49,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:08:49,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:08:49,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:08:49,349 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:49" (1/1) ... [2024-11-16 08:08:49,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:49" (1/1) ... [2024-11-16 08:08:49,353 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:49" (1/1) ... [2024-11-16 08:08:49,372 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]. [2024-11-16 08:08:49,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:49" (1/1) ... [2024-11-16 08:08:49,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:49" (1/1) ... [2024-11-16 08:08:49,387 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:49" (1/1) ... [2024-11-16 08:08:49,391 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:49" (1/1) ... [2024-11-16 08:08:49,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:49" (1/1) ... [2024-11-16 08:08:49,395 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:49" (1/1) ... [2024-11-16 08:08:49,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:08:49,400 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:08:49,400 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:08:49,400 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:08:49,401 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:49" (1/1) ... [2024-11-16 08:08:49,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:08:49,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:08:49,446 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) [2024-11-16 08:08:49,449 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 [2024-11-16 08:08:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:08:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 08:08:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 08:08:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 08:08:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 08:08:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 08:08:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 08:08:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 08:08:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 08:08:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 08:08:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 08:08:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 08:08:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 08:08:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 08:08:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 08:08:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:08:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:08:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:08:49,607 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:08:49,609 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:08:50,594 INFO L? ?]: Removed 101 outVars from TransFormulas that were not future-live. [2024-11-16 08:08:50,595 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:08:50,629 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:08:50,630 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:08:50,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:08:50 BoogieIcfgContainer [2024-11-16 08:08:50,631 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:08:50,633 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:08:50,633 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:08:50,636 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:08:50,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:08:48" (1/3) ... [2024-11-16 08:08:50,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e388d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:08:50, skipping insertion in model container [2024-11-16 08:08:50,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:49" (2/3) ... [2024-11-16 08:08:50,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e388d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:08:50, skipping insertion in model container [2024-11-16 08:08:50,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:08:50" (3/3) ... [2024-11-16 08:08:50,639 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.12.cil-1.c [2024-11-16 08:08:50,654 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:08:50,654 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:08:50,774 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:08:50,782 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;@1b502176, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:08:50,783 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:08:50,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 463 states, 426 states have (on average 1.5539906103286385) internal successors, (662), 430 states have internal predecessors, (662), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-16 08:08:50,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 08:08:50,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:50,817 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:08:50,818 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:50,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:50,824 INFO L85 PathProgramCache]: Analyzing trace with hash 788083302, now seen corresponding path program 1 times [2024-11-16 08:08:50,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:50,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326640930] [2024-11-16 08:08:50,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:50,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:51,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:51,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 08:08:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:51,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:08:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:51,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 08:08:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:51,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 08:08:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:51,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:08:51,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:51,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326640930] [2024-11-16 08:08:51,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326640930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:51,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:51,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:08:51,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816417782] [2024-11-16 08:08:51,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:51,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:08:51,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:51,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:08:51,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:08:51,835 INFO L87 Difference]: Start difference. First operand has 463 states, 426 states have (on average 1.5539906103286385) internal successors, (662), 430 states have internal predecessors, (662), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 4 states have internal predecessors, (172), 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) [2024-11-16 08:08:55,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:55,345 INFO L93 Difference]: Finished difference Result 1619 states and 2581 transitions. [2024-11-16 08:08:55,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:08:55,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 4 states have internal predecessors, (172), 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 183 [2024-11-16 08:08:55,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:55,375 INFO L225 Difference]: With dead ends: 1619 [2024-11-16 08:08:55,376 INFO L226 Difference]: Without dead ends: 1166 [2024-11-16 08:08:55,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:08:55,389 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 1645 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 2390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:55,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 1639 Invalid, 2390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 08:08:55,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2024-11-16 08:08:55,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 880. [2024-11-16 08:08:55,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 817 states have (on average 1.5104039167686658) internal successors, (1234), 820 states have internal predecessors, (1234), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-11-16 08:08:55,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1333 transitions. [2024-11-16 08:08:55,537 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1333 transitions. Word has length 183 [2024-11-16 08:08:55,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:55,538 INFO L471 AbstractCegarLoop]: Abstraction has 880 states and 1333 transitions. [2024-11-16 08:08:55,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 4 states have internal predecessors, (172), 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) [2024-11-16 08:08:55,539 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1333 transitions. [2024-11-16 08:08:55,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 08:08:55,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:55,545 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:08:55,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:08:55,546 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:55,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:55,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1671758808, now seen corresponding path program 1 times [2024-11-16 08:08:55,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:55,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816883309] [2024-11-16 08:08:55,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:55,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:55,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:55,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 08:08:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:55,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:08:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:56,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 08:08:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:56,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 08:08:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:56,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:08:56,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:56,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816883309] [2024-11-16 08:08:56,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816883309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:56,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:56,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:56,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40680989] [2024-11-16 08:08:56,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:56,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:56,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:56,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:56,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:56,039 INFO L87 Difference]: Start difference. First operand 880 states and 1333 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:00,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:00,053 INFO L93 Difference]: Finished difference Result 2625 states and 4060 transitions. [2024-11-16 08:09:00,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:00,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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 183 [2024-11-16 08:09:00,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:00,065 INFO L225 Difference]: With dead ends: 2625 [2024-11-16 08:09:00,066 INFO L226 Difference]: Without dead ends: 1765 [2024-11-16 08:09:00,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:00,070 INFO L432 NwaCegarLoop]: 688 mSDtfsCounter, 1671 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 3606 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 3671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:00,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 3159 Invalid, 3671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3606 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 08:09:00,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2024-11-16 08:09:00,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1291. [2024-11-16 08:09:00,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 1200 states have (on average 1.5025) internal successors, (1803), 1204 states have internal predecessors, (1803), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-16 08:09:00,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 1946 transitions. [2024-11-16 08:09:00,206 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 1946 transitions. Word has length 183 [2024-11-16 08:09:00,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:00,206 INFO L471 AbstractCegarLoop]: Abstraction has 1291 states and 1946 transitions. [2024-11-16 08:09:00,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:00,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 1946 transitions. [2024-11-16 08:09:00,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 08:09:00,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:00,210 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:00,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:09:00,211 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:00,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:00,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2064757753, now seen corresponding path program 1 times [2024-11-16 08:09:00,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:00,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439896948] [2024-11-16 08:09:00,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:00,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:00,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:00,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 08:09:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:00,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:09:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:00,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 08:09:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:00,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 08:09:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:00,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:00,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439896948] [2024-11-16 08:09:00,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439896948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:00,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:00,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:00,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952608222] [2024-11-16 08:09:00,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:00,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:00,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:00,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:00,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:00,560 INFO L87 Difference]: Start difference. First operand 1291 states and 1946 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:04,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:04,126 INFO L93 Difference]: Finished difference Result 4157 states and 6415 transitions. [2024-11-16 08:09:04,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:04,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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 183 [2024-11-16 08:09:04,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:04,140 INFO L225 Difference]: With dead ends: 4157 [2024-11-16 08:09:04,140 INFO L226 Difference]: Without dead ends: 2886 [2024-11-16 08:09:04,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:04,145 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 1787 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 3064 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 3171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:04,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1806 Valid, 1961 Invalid, 3171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 3064 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 08:09:04,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2024-11-16 08:09:04,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2114. [2024-11-16 08:09:04,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2114 states, 1967 states have (on average 1.4956786985256736) internal successors, (2942), 1973 states have internal predecessors, (2942), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-16 08:09:04,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 3177 transitions. [2024-11-16 08:09:04,273 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 3177 transitions. Word has length 183 [2024-11-16 08:09:04,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:04,274 INFO L471 AbstractCegarLoop]: Abstraction has 2114 states and 3177 transitions. [2024-11-16 08:09:04,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:04,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 3177 transitions. [2024-11-16 08:09:04,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 08:09:04,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:04,278 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:04,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:09:04,279 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:04,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:04,280 INFO L85 PathProgramCache]: Analyzing trace with hash 416416840, now seen corresponding path program 1 times [2024-11-16 08:09:04,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:04,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929298986] [2024-11-16 08:09:04,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:04,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:04,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:04,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 08:09:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:04,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:09:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:04,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 08:09:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:04,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 08:09:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:04,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:04,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:04,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929298986] [2024-11-16 08:09:04,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929298986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:04,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:04,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:04,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217995998] [2024-11-16 08:09:04,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:04,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:04,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:04,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:04,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:04,609 INFO L87 Difference]: Start difference. First operand 2114 states and 3177 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:08,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:08,189 INFO L93 Difference]: Finished difference Result 7116 states and 10930 transitions. [2024-11-16 08:09:08,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:08,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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 183 [2024-11-16 08:09:08,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:08,211 INFO L225 Difference]: With dead ends: 7116 [2024-11-16 08:09:08,212 INFO L226 Difference]: Without dead ends: 5022 [2024-11-16 08:09:08,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:08,219 INFO L432 NwaCegarLoop]: 686 mSDtfsCounter, 1663 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 3600 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 3667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:08,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1682 Valid, 3157 Invalid, 3667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3600 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 08:09:08,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2024-11-16 08:09:08,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 3761. [2024-11-16 08:09:08,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3761 states, 3502 states have (on average 1.4905768132495716) internal successors, (5220), 3512 states have internal predecessors, (5220), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-16 08:09:08,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3761 states to 3761 states and 5645 transitions. [2024-11-16 08:09:08,423 INFO L78 Accepts]: Start accepts. Automaton has 3761 states and 5645 transitions. Word has length 183 [2024-11-16 08:09:08,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:08,423 INFO L471 AbstractCegarLoop]: Abstraction has 3761 states and 5645 transitions. [2024-11-16 08:09:08,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:08,424 INFO L276 IsEmpty]: Start isEmpty. Operand 3761 states and 5645 transitions. [2024-11-16 08:09:08,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 08:09:08,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:08,427 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:08,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:09:08,428 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:08,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:08,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1466286055, now seen corresponding path program 1 times [2024-11-16 08:09:08,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:08,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696660865] [2024-11-16 08:09:08,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:08,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:08,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:08,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 08:09:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:08,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:09:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:08,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 08:09:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:08,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 08:09:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:08,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:08,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:08,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696660865] [2024-11-16 08:09:08,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696660865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:08,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:08,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:08,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683126106] [2024-11-16 08:09:08,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:08,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:08,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:08,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:08,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:08,754 INFO L87 Difference]: Start difference. First operand 3761 states and 5645 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:12,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:12,598 INFO L93 Difference]: Finished difference Result 13033 states and 19976 transitions. [2024-11-16 08:09:12,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:12,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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 183 [2024-11-16 08:09:12,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:12,641 INFO L225 Difference]: With dead ends: 13033 [2024-11-16 08:09:12,641 INFO L226 Difference]: Without dead ends: 9292 [2024-11-16 08:09:12,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:12,657 INFO L432 NwaCegarLoop]: 686 mSDtfsCounter, 1659 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 3591 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1678 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 3658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:12,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1678 Valid, 3157 Invalid, 3658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3591 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 08:09:12,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9292 states. [2024-11-16 08:09:12,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9292 to 7060. [2024-11-16 08:09:13,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7060 states, 6577 states have (on average 1.4873042420556484) internal successors, (9782), 6595 states have internal predecessors, (9782), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-16 08:09:13,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7060 states to 7060 states and 10605 transitions. [2024-11-16 08:09:13,026 INFO L78 Accepts]: Start accepts. Automaton has 7060 states and 10605 transitions. Word has length 183 [2024-11-16 08:09:13,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:13,027 INFO L471 AbstractCegarLoop]: Abstraction has 7060 states and 10605 transitions. [2024-11-16 08:09:13,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:13,027 INFO L276 IsEmpty]: Start isEmpty. Operand 7060 states and 10605 transitions. [2024-11-16 08:09:13,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 08:09:13,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:13,033 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:13,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:09:13,034 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:13,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:13,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1638700136, now seen corresponding path program 1 times [2024-11-16 08:09:13,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:13,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519767066] [2024-11-16 08:09:13,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:13,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 08:09:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:09:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 08:09:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 08:09:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:13,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:13,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519767066] [2024-11-16 08:09:13,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519767066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:13,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:13,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:13,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792823159] [2024-11-16 08:09:13,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:13,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:13,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:13,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:13,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:13,376 INFO L87 Difference]: Start difference. First operand 7060 states and 10605 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:17,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:17,308 INFO L93 Difference]: Finished difference Result 24866 states and 38126 transitions. [2024-11-16 08:09:17,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:17,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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 183 [2024-11-16 08:09:17,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:17,380 INFO L225 Difference]: With dead ends: 24866 [2024-11-16 08:09:17,380 INFO L226 Difference]: Without dead ends: 17826 [2024-11-16 08:09:17,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:17,407 INFO L432 NwaCegarLoop]: 686 mSDtfsCounter, 1655 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 3582 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 3649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:17,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 3157 Invalid, 3649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3582 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 08:09:17,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17826 states. [2024-11-16 08:09:18,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17826 to 13671. [2024-11-16 08:09:18,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13671 states, 12740 states have (on average 1.4854003139717424) internal successors, (18924), 12774 states have internal predecessors, (18924), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-16 08:09:18,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13671 states to 13671 states and 20597 transitions. [2024-11-16 08:09:18,268 INFO L78 Accepts]: Start accepts. Automaton has 13671 states and 20597 transitions. Word has length 183 [2024-11-16 08:09:18,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:18,271 INFO L471 AbstractCegarLoop]: Abstraction has 13671 states and 20597 transitions. [2024-11-16 08:09:18,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:18,275 INFO L276 IsEmpty]: Start isEmpty. Operand 13671 states and 20597 transitions. [2024-11-16 08:09:18,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 08:09:18,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:18,287 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:18,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:09:18,288 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:18,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:18,288 INFO L85 PathProgramCache]: Analyzing trace with hash -18306105, now seen corresponding path program 1 times [2024-11-16 08:09:18,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:18,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538588648] [2024-11-16 08:09:18,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:18,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 08:09:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:09:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 08:09:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 08:09:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:18,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:18,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538588648] [2024-11-16 08:09:18,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538588648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:18,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:18,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:18,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082340055] [2024-11-16 08:09:18,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:18,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:18,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:18,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:18,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:18,591 INFO L87 Difference]: Start difference. First operand 13671 states and 20597 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:23,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:23,076 INFO L93 Difference]: Finished difference Result 48531 states and 74616 transitions. [2024-11-16 08:09:23,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:23,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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 183 [2024-11-16 08:09:23,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:23,230 INFO L225 Difference]: With dead ends: 48531 [2024-11-16 08:09:23,230 INFO L226 Difference]: Without dead ends: 34880 [2024-11-16 08:09:23,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:23,292 INFO L432 NwaCegarLoop]: 686 mSDtfsCounter, 1651 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 3573 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 3640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:23,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1670 Valid, 3157 Invalid, 3640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3573 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 08:09:23,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34880 states. [2024-11-16 08:09:24,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34880 to 26922. [2024-11-16 08:09:24,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26922 states, 25095 states have (on average 1.484359434150229) internal successors, (37250), 25161 states have internal predecessors, (37250), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-11-16 08:09:24,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26922 states to 26922 states and 40785 transitions. [2024-11-16 08:09:24,679 INFO L78 Accepts]: Start accepts. Automaton has 26922 states and 40785 transitions. Word has length 183 [2024-11-16 08:09:24,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:24,679 INFO L471 AbstractCegarLoop]: Abstraction has 26922 states and 40785 transitions. [2024-11-16 08:09:24,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:24,680 INFO L276 IsEmpty]: Start isEmpty. Operand 26922 states and 40785 transitions. [2024-11-16 08:09:24,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 08:09:24,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:24,698 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:24,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:09:24,698 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:24,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:24,699 INFO L85 PathProgramCache]: Analyzing trace with hash -903041912, now seen corresponding path program 1 times [2024-11-16 08:09:24,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:24,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736865921] [2024-11-16 08:09:24,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:24,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:24,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:25,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 08:09:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:25,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:09:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:25,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 08:09:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:25,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 08:09:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:25,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:25,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:25,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736865921] [2024-11-16 08:09:25,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736865921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:25,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:25,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:25,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225714459] [2024-11-16 08:09:25,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:25,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:25,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:25,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:25,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:25,134 INFO L87 Difference]: Start difference. First operand 26922 states and 40785 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:30,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:30,804 INFO L93 Difference]: Finished difference Result 95860 states and 148194 transitions. [2024-11-16 08:09:30,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:30,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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 183 [2024-11-16 08:09:30,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:31,035 INFO L225 Difference]: With dead ends: 95860 [2024-11-16 08:09:31,036 INFO L226 Difference]: Without dead ends: 68958 [2024-11-16 08:09:31,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:31,111 INFO L432 NwaCegarLoop]: 686 mSDtfsCounter, 1647 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 3564 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 3631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:31,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 3157 Invalid, 3631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3564 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 08:09:31,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68958 states. [2024-11-16 08:09:33,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68958 to 53485. [2024-11-16 08:09:33,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53485 states, 49866 states have (on average 1.483816628564553) internal successors, (73992), 49996 states have internal predecessors, (73992), 2716 states have call successors, (2716), 775 states have call predecessors, (2716), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2024-11-16 08:09:33,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53485 states to 53485 states and 81737 transitions. [2024-11-16 08:09:33,978 INFO L78 Accepts]: Start accepts. Automaton has 53485 states and 81737 transitions. Word has length 183 [2024-11-16 08:09:33,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:33,979 INFO L471 AbstractCegarLoop]: Abstraction has 53485 states and 81737 transitions. [2024-11-16 08:09:33,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:33,982 INFO L276 IsEmpty]: Start isEmpty. Operand 53485 states and 81737 transitions. [2024-11-16 08:09:34,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 08:09:34,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:34,024 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:34,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:09:34,024 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:34,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:34,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1208676441, now seen corresponding path program 1 times [2024-11-16 08:09:34,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:34,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130930443] [2024-11-16 08:09:34,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:34,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:34,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:34,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 08:09:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:34,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:09:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:34,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 08:09:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:34,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 08:09:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:34,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:34,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:34,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130930443] [2024-11-16 08:09:34,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130930443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:34,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:34,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:34,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747343106] [2024-11-16 08:09:34,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:34,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:34,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:34,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:34,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:34,583 INFO L87 Difference]: Start difference. First operand 53485 states and 81737 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:42,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:42,148 INFO L93 Difference]: Finished difference Result 190517 states and 297196 transitions. [2024-11-16 08:09:42,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:42,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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 183 [2024-11-16 08:09:42,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:42,716 INFO L225 Difference]: With dead ends: 190517 [2024-11-16 08:09:42,716 INFO L226 Difference]: Without dead ends: 137052 [2024-11-16 08:09:42,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:42,847 INFO L432 NwaCegarLoop]: 686 mSDtfsCounter, 1643 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 3555 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 3622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:42,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 3157 Invalid, 3622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3555 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 08:09:42,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137052 states. [2024-11-16 08:09:47,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137052 to 106736. [2024-11-16 08:09:48,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106736 states, 99533 states have (on average 1.4835481699536837) internal successors, (147662), 99791 states have internal predecessors, (147662), 5404 states have call successors, (5404), 1543 states have call predecessors, (5404), 1798 states have return successors, (12219), 5657 states have call predecessors, (12219), 5402 states have call successors, (12219) [2024-11-16 08:09:48,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106736 states to 106736 states and 165285 transitions. [2024-11-16 08:09:48,913 INFO L78 Accepts]: Start accepts. Automaton has 106736 states and 165285 transitions. Word has length 183 [2024-11-16 08:09:48,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:48,913 INFO L471 AbstractCegarLoop]: Abstraction has 106736 states and 165285 transitions. [2024-11-16 08:09:48,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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) [2024-11-16 08:09:48,914 INFO L276 IsEmpty]: Start isEmpty. Operand 106736 states and 165285 transitions. [2024-11-16 08:09:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 08:09:48,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:48,997 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:48,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:09:48,998 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:48,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:48,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1911272280, now seen corresponding path program 1 times [2024-11-16 08:09:48,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:48,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843845225] [2024-11-16 08:09:48,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:48,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:49,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:49,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 08:09:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:49,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:09:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:49,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 08:09:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:49,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 08:09:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:49,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:49,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:49,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843845225] [2024-11-16 08:09:49,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843845225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:49,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:49,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:49,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337260022] [2024-11-16 08:09:49,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:49,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:49,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:49,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:49,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:49,267 INFO L87 Difference]: Start difference. First operand 106736 states and 165285 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 5 states have internal predecessors, (172), 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)