./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.10.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.10.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 9102a3dc168a1a089cfcbe45042daf88c4c5eebedf113fc0c98e676c1fbaab5b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:08:25,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:08:25,511 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:08:25,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:08:25,518 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:08:25,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:08:25,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:08:25,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:08:25,544 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:08:25,545 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:08:25,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:08:25,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:08:25,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:08:25,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:08:25,548 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:08:25,548 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:08:25,548 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:08:25,549 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:08:25,549 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:08:25,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:08:25,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:08:25,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:08:25,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:08:25,552 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:08:25,552 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:08:25,552 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:08:25,552 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:08:25,553 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:08:25,553 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:08:25,553 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:08:25,553 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:08:25,553 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:08:25,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:08:25,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:08:25,554 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:08:25,554 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:08:25,554 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:08:25,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:08:25,554 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:08:25,555 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:08:25,555 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:08:25,556 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:08:25,556 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9102a3dc168a1a089cfcbe45042daf88c4c5eebedf113fc0c98e676c1fbaab5b [2024-11-16 08:08:25,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:08:25,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:08:25,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:08:25,799 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:08:25,799 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:08:25,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.10.cil-1.c [2024-11-16 08:08:27,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:08:27,345 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:08:27,346 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.10.cil-1.c [2024-11-16 08:08:27,358 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/654d92f45/c273da4961c44fbd91b8b3f2e5266eb1/FLAGbb9f78988 [2024-11-16 08:08:27,370 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/654d92f45/c273da4961c44fbd91b8b3f2e5266eb1 [2024-11-16 08:08:27,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:08:27,373 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:08:27,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:08:27,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:08:27,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:08:27,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:08:27" (1/1) ... [2024-11-16 08:08:27,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3353c96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27, skipping insertion in model container [2024-11-16 08:08:27,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:08:27" (1/1) ... [2024-11-16 08:08:27,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:08:27,529 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.10.cil-1.c[671,684] [2024-11-16 08:08:27,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:08:27,640 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:08:27,661 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.10.cil-1.c[671,684] [2024-11-16 08:08:27,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:08:27,762 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:08:27,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27 WrapperNode [2024-11-16 08:08:27,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:08:27,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:08:27,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:08:27,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:08:27,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27" (1/1) ... [2024-11-16 08:08:27,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27" (1/1) ... [2024-11-16 08:08:27,827 INFO L138 Inliner]: procedures = 48, calls = 62, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 752 [2024-11-16 08:08:27,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:08:27,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:08:27,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:08:27,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:08:27,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27" (1/1) ... [2024-11-16 08:08:27,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27" (1/1) ... [2024-11-16 08:08:27,841 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27" (1/1) ... [2024-11-16 08:08:27,856 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 08:08:27,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27" (1/1) ... [2024-11-16 08:08:27,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27" (1/1) ... [2024-11-16 08:08:27,864 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27" (1/1) ... [2024-11-16 08:08:27,865 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27" (1/1) ... [2024-11-16 08:08:27,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27" (1/1) ... [2024-11-16 08:08:27,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27" (1/1) ... [2024-11-16 08:08:27,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:08:27,877 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:08:27,877 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:08:27,877 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:08:27,878 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27" (1/1) ... [2024-11-16 08:08:27,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:08:27,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:08:27,909 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 08:08:27,917 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 08:08:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:08:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 08:08:27,959 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 08:08:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 08:08:27,959 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 08:08:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 08:08:27,959 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 08:08:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 08:08:27,961 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 08:08:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 08:08:27,961 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 08:08:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 08:08:27,962 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 08:08:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:08:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 08:08:27,962 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 08:08:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:08:27,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:08:28,066 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:08:28,068 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:08:28,668 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-11-16 08:08:28,668 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:08:28,693 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:08:28,697 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:08:28,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:08:28 BoogieIcfgContainer [2024-11-16 08:08:28,697 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:08:28,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:08:28,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:08:28,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:08:28,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:08:27" (1/3) ... [2024-11-16 08:08:28,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c50c595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:08:28, skipping insertion in model container [2024-11-16 08:08:28,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:27" (2/3) ... [2024-11-16 08:08:28,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c50c595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:08:28, skipping insertion in model container [2024-11-16 08:08:28,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:08:28" (3/3) ... [2024-11-16 08:08:28,705 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.10.cil-1.c [2024-11-16 08:08:28,721 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:08:28,721 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:08:28,789 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:08:28,796 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;@57c7582d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:08:28,796 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:08:28,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 403 states, 368 states have (on average 1.548913043478261) internal successors, (570), 372 states have internal predecessors, (570), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 08:08:28,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 08:08:28,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:28,816 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] [2024-11-16 08:08:28,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:28,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:28,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1951411467, now seen corresponding path program 1 times [2024-11-16 08:08:28,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:28,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127478377] [2024-11-16 08:08:28,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:28,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:29,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:29,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 08:08:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:29,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 08:08:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:29,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 08:08:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:29,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:08:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:29,502 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 08:08:29,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:29,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127478377] [2024-11-16 08:08:29,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127478377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:29,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:29,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:08:29,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796286318] [2024-11-16 08:08:29,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:29,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:08:29,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:29,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:08:29,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:08:29,544 INFO L87 Difference]: Start difference. First operand has 403 states, 368 states have (on average 1.548913043478261) internal successors, (570), 372 states have internal predecessors, (570), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 6 states, 6 states have (on average 25.0) internal successors, (150), 4 states have internal predecessors, (150), 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 08:08:32,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:32,022 INFO L93 Difference]: Finished difference Result 1399 states and 2221 transitions. [2024-11-16 08:08:32,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:08:32,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 4 states have internal predecessors, (150), 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 161 [2024-11-16 08:08:32,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:32,040 INFO L225 Difference]: With dead ends: 1399 [2024-11-16 08:08:32,040 INFO L226 Difference]: Without dead ends: 1004 [2024-11-16 08:08:32,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:08:32,047 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 1407 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 1938 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:32,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 1433 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1938 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 08:08:32,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2024-11-16 08:08:32,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 762. [2024-11-16 08:08:32,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 703 states have (on average 1.5049786628733997) internal successors, (1058), 706 states have internal predecessors, (1058), 45 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2024-11-16 08:08:32,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1149 transitions. [2024-11-16 08:08:32,168 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1149 transitions. Word has length 161 [2024-11-16 08:08:32,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:32,172 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 1149 transitions. [2024-11-16 08:08:32,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 4 states have internal predecessors, (150), 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 08:08:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1149 transitions. [2024-11-16 08:08:32,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 08:08:32,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:32,180 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] [2024-11-16 08:08:32,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:08:32,181 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:32,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:32,182 INFO L85 PathProgramCache]: Analyzing trace with hash -58462281, now seen corresponding path program 1 times [2024-11-16 08:08:32,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:32,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140536593] [2024-11-16 08:08:32,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:32,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:32,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:32,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 08:08:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:32,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 08:08:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:32,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 08:08:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:32,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:08:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:32,588 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 08:08:32,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:32,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140536593] [2024-11-16 08:08:32,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140536593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:32,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:32,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:32,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804787275] [2024-11-16 08:08:32,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:32,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:32,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:32,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:32,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:32,592 INFO L87 Difference]: Start difference. First operand 762 states and 1149 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:08:35,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:35,517 INFO L93 Difference]: Finished difference Result 2261 states and 3480 transitions. [2024-11-16 08:08:35,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:08:35,518 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2024-11-16 08:08:35,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:35,527 INFO L225 Difference]: With dead ends: 2261 [2024-11-16 08:08:35,527 INFO L226 Difference]: Without dead ends: 1517 [2024-11-16 08:08:35,529 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 08:08:35,530 INFO L432 NwaCegarLoop]: 600 mSDtfsCounter, 1423 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 3087 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 3148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:35,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1440 Valid, 2743 Invalid, 3148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3087 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 08:08:35,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2024-11-16 08:08:35,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1117. [2024-11-16 08:08:35,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 1032 states have (on average 1.497093023255814) internal successors, (1545), 1036 states have internal predecessors, (1545), 64 states have call successors, (64), 19 states have call predecessors, (64), 20 states have return successors, (67), 63 states have call predecessors, (67), 62 states have call successors, (67) [2024-11-16 08:08:35,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1676 transitions. [2024-11-16 08:08:35,588 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1676 transitions. Word has length 161 [2024-11-16 08:08:35,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:35,589 INFO L471 AbstractCegarLoop]: Abstraction has 1117 states and 1676 transitions. [2024-11-16 08:08:35,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:08:35,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1676 transitions. [2024-11-16 08:08:35,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 08:08:35,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:35,591 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] [2024-11-16 08:08:35,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:08:35,591 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:35,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:35,592 INFO L85 PathProgramCache]: Analyzing trace with hash -2000640746, now seen corresponding path program 1 times [2024-11-16 08:08:35,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:35,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497094503] [2024-11-16 08:08:35,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:35,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:35,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:35,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 08:08:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:35,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 08:08:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:35,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 08:08:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:35,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:08:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:35,851 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 08:08:35,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:35,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497094503] [2024-11-16 08:08:35,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497094503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:35,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:35,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:35,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776906740] [2024-11-16 08:08:35,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:35,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:35,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:35,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:35,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:35,854 INFO L87 Difference]: Start difference. First operand 1117 states and 1676 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:08:38,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:38,898 INFO L93 Difference]: Finished difference Result 3577 states and 5493 transitions. [2024-11-16 08:08:38,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:08:38,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2024-11-16 08:08:38,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:38,912 INFO L225 Difference]: With dead ends: 3577 [2024-11-16 08:08:38,912 INFO L226 Difference]: Without dead ends: 2478 [2024-11-16 08:08:38,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:08:38,916 INFO L432 NwaCegarLoop]: 598 mSDtfsCounter, 1421 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 3083 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 3146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:38,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 2741 Invalid, 3146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3083 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 08:08:38,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2024-11-16 08:08:38,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 1828. [2024-11-16 08:08:38,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1828 states, 1691 states have (on average 1.4902424600827913) internal successors, (2520), 1697 states have internal predecessors, (2520), 102 states have call successors, (102), 31 states have call predecessors, (102), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2024-11-16 08:08:39,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2735 transitions. [2024-11-16 08:08:39,001 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2735 transitions. Word has length 161 [2024-11-16 08:08:39,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:39,002 INFO L471 AbstractCegarLoop]: Abstraction has 1828 states and 2735 transitions. [2024-11-16 08:08:39,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:08:39,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2735 transitions. [2024-11-16 08:08:39,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 08:08:39,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:39,005 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] [2024-11-16 08:08:39,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:08:39,006 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:39,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:39,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1400391639, now seen corresponding path program 1 times [2024-11-16 08:08:39,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:39,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908153672] [2024-11-16 08:08:39,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:39,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:39,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:39,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 08:08:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:39,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 08:08:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:39,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 08:08:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:39,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:08:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:39,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:08:39,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:39,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908153672] [2024-11-16 08:08:39,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908153672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:39,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:39,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:39,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837951836] [2024-11-16 08:08:39,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:39,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:39,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:39,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:39,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:39,221 INFO L87 Difference]: Start difference. First operand 1828 states and 2735 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:08:41,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:41,625 INFO L93 Difference]: Finished difference Result 6120 states and 9356 transitions. [2024-11-16 08:08:41,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:08:41,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2024-11-16 08:08:41,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:41,639 INFO L225 Difference]: With dead ends: 6120 [2024-11-16 08:08:41,639 INFO L226 Difference]: Without dead ends: 4310 [2024-11-16 08:08:41,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:08:41,647 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 1528 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 2601 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 2700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:41,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1545 Valid, 1709 Invalid, 2700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2601 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 08:08:41,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4310 states. [2024-11-16 08:08:41,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4310 to 3251. [2024-11-16 08:08:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3251 states, 3010 states have (on average 1.4850498338870433) internal successors, (4470), 3020 states have internal predecessors, (4470), 178 states have call successors, (178), 55 states have call predecessors, (178), 62 states have return successors, (211), 183 states have call predecessors, (211), 176 states have call successors, (211) [2024-11-16 08:08:41,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3251 states to 3251 states and 4859 transitions. [2024-11-16 08:08:41,799 INFO L78 Accepts]: Start accepts. Automaton has 3251 states and 4859 transitions. Word has length 161 [2024-11-16 08:08:41,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:41,800 INFO L471 AbstractCegarLoop]: Abstraction has 3251 states and 4859 transitions. [2024-11-16 08:08:41,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:08:41,800 INFO L276 IsEmpty]: Start isEmpty. Operand 3251 states and 4859 transitions. [2024-11-16 08:08:41,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 08:08:41,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:41,803 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] [2024-11-16 08:08:41,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:08:41,804 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:41,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:41,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1815033610, now seen corresponding path program 1 times [2024-11-16 08:08:41,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:41,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359859846] [2024-11-16 08:08:41,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:41,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:41,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:41,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 08:08:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:41,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 08:08:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:41,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 08:08:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:41,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:08:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:41,987 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 08:08:41,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:41,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359859846] [2024-11-16 08:08:41,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359859846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:41,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:41,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:41,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425539672] [2024-11-16 08:08:41,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:41,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:41,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:41,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:41,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:41,994 INFO L87 Difference]: Start difference. First operand 3251 states and 4859 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:08:44,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:44,960 INFO L93 Difference]: Finished difference Result 11198 states and 17086 transitions. [2024-11-16 08:08:44,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:08:44,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2024-11-16 08:08:44,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:44,991 INFO L225 Difference]: With dead ends: 11198 [2024-11-16 08:08:44,992 INFO L226 Difference]: Without dead ends: 7965 [2024-11-16 08:08:45,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:08:45,002 INFO L432 NwaCegarLoop]: 598 mSDtfsCounter, 1419 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 3041 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 3104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:45,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 2741 Invalid, 3104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3041 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 08:08:45,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7965 states. [2024-11-16 08:08:45,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7965 to 6111. [2024-11-16 08:08:45,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6111 states, 5662 states have (on average 1.4825150123631226) internal successors, (8394), 5680 states have internal predecessors, (8394), 330 states have call successors, (330), 103 states have call predecessors, (330), 118 states have return successors, (425), 343 states have call predecessors, (425), 328 states have call successors, (425) [2024-11-16 08:08:45,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6111 states to 6111 states and 9149 transitions. [2024-11-16 08:08:45,243 INFO L78 Accepts]: Start accepts. Automaton has 6111 states and 9149 transitions. Word has length 161 [2024-11-16 08:08:45,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:45,244 INFO L471 AbstractCegarLoop]: Abstraction has 6111 states and 9149 transitions. [2024-11-16 08:08:45,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:08:45,244 INFO L276 IsEmpty]: Start isEmpty. Operand 6111 states and 9149 transitions. [2024-11-16 08:08:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 08:08:45,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:45,249 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] [2024-11-16 08:08:45,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:08:45,249 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:45,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:45,250 INFO L85 PathProgramCache]: Analyzing trace with hash 541394389, now seen corresponding path program 1 times [2024-11-16 08:08:45,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:45,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325277708] [2024-11-16 08:08:45,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:45,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:45,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:45,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 08:08:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:45,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 08:08:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:45,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 08:08:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:45,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:08:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:45,505 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 08:08:45,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:45,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325277708] [2024-11-16 08:08:45,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325277708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:45,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:45,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:45,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275810807] [2024-11-16 08:08:45,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:45,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:45,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:45,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:45,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:45,508 INFO L87 Difference]: Start difference. First operand 6111 states and 9149 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:08:48,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:48,485 INFO L93 Difference]: Finished difference Result 21372 states and 32638 transitions. [2024-11-16 08:08:48,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:08:48,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2024-11-16 08:08:48,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:48,604 INFO L225 Difference]: With dead ends: 21372 [2024-11-16 08:08:48,605 INFO L226 Difference]: Without dead ends: 15279 [2024-11-16 08:08:48,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:08:48,625 INFO L432 NwaCegarLoop]: 598 mSDtfsCounter, 1418 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 3028 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 3091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:48,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 2741 Invalid, 3091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3028 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 08:08:48,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15279 states. [2024-11-16 08:08:49,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15279 to 11844. [2024-11-16 08:08:49,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11844 states, 10979 states have (on average 1.4810091993806358) internal successors, (16260), 11013 states have internal predecessors, (16260), 634 states have call successors, (634), 199 states have call predecessors, (634), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2024-11-16 08:08:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11844 states to 11844 states and 17801 transitions. [2024-11-16 08:08:49,131 INFO L78 Accepts]: Start accepts. Automaton has 11844 states and 17801 transitions. Word has length 161 [2024-11-16 08:08:49,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:49,131 INFO L471 AbstractCegarLoop]: Abstraction has 11844 states and 17801 transitions. [2024-11-16 08:08:49,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:08:49,131 INFO L276 IsEmpty]: Start isEmpty. Operand 11844 states and 17801 transitions. [2024-11-16 08:08:49,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 08:08:49,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:49,138 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] [2024-11-16 08:08:49,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:08:49,139 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:49,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:49,139 INFO L85 PathProgramCache]: Analyzing trace with hash -906612458, now seen corresponding path program 1 times [2024-11-16 08:08:49,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:49,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007051926] [2024-11-16 08:08:49,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:49,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:49,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:49,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 08:08:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:49,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 08:08:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:49,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 08:08:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:49,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:08:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:49,307 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 08:08:49,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:49,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007051926] [2024-11-16 08:08:49,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007051926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:49,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:49,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:49,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986132360] [2024-11-16 08:08:49,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:49,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:49,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:49,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:49,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:49,309 INFO L87 Difference]: Start difference. First operand 11844 states and 17801 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:08:52,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:52,713 INFO L93 Difference]: Finished difference Result 41719 states and 63932 transitions. [2024-11-16 08:08:52,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:08:52,714 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2024-11-16 08:08:52,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:52,796 INFO L225 Difference]: With dead ends: 41719 [2024-11-16 08:08:52,797 INFO L226 Difference]: Without dead ends: 29893 [2024-11-16 08:08:52,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:08:52,828 INFO L432 NwaCegarLoop]: 598 mSDtfsCounter, 1417 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 3015 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 3078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:52,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 2741 Invalid, 3078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3015 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 08:08:52,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29893 states. [2024-11-16 08:08:53,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29893 to 23341. [2024-11-16 08:08:53,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23341 states, 21644 states have (on average 1.4802254666420256) internal successors, (32038), 21710 states have internal predecessors, (32038), 1242 states have call successors, (1242), 391 states have call predecessors, (1242), 454 states have return successors, (2033), 1303 states have call predecessors, (2033), 1240 states have call successors, (2033) [2024-11-16 08:08:53,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23341 states to 23341 states and 35313 transitions. [2024-11-16 08:08:53,780 INFO L78 Accepts]: Start accepts. Automaton has 23341 states and 35313 transitions. Word has length 161 [2024-11-16 08:08:53,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:53,781 INFO L471 AbstractCegarLoop]: Abstraction has 23341 states and 35313 transitions. [2024-11-16 08:08:53,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:08:53,781 INFO L276 IsEmpty]: Start isEmpty. Operand 23341 states and 35313 transitions. [2024-11-16 08:08:53,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 08:08:53,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:53,796 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] [2024-11-16 08:08:53,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:08:53,796 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:53,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:53,797 INFO L85 PathProgramCache]: Analyzing trace with hash 432150965, now seen corresponding path program 1 times [2024-11-16 08:08:53,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:53,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337762620] [2024-11-16 08:08:53,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:53,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:53,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:53,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 08:08:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:53,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 08:08:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:53,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 08:08:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:53,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:08:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:53,969 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 08:08:53,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:53,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337762620] [2024-11-16 08:08:53,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337762620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:53,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:53,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:53,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568136549] [2024-11-16 08:08:53,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:53,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:53,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:53,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:53,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:53,971 INFO L87 Difference]: Start difference. First operand 23341 states and 35313 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:08:58,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:58,486 INFO L93 Difference]: Finished difference Result 82414 states and 127122 transitions. [2024-11-16 08:08:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:08:58,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2024-11-16 08:08:58,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:58,668 INFO L225 Difference]: With dead ends: 82414 [2024-11-16 08:08:58,669 INFO L226 Difference]: Without dead ends: 59091 [2024-11-16 08:08:58,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:08:58,728 INFO L432 NwaCegarLoop]: 598 mSDtfsCounter, 1416 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 3002 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 3065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:58,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1433 Valid, 2741 Invalid, 3065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3002 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 08:08:58,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59091 states. [2024-11-16 08:09:01,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59091 to 46398. [2024-11-16 08:09:01,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46398 states, 43037 states have (on average 1.4798429258544974) internal successors, (63688), 43167 states have internal predecessors, (63688), 2458 states have call successors, (2458), 775 states have call predecessors, (2458), 902 states have return successors, (4771), 2583 states have call predecessors, (4771), 2456 states have call successors, (4771) [2024-11-16 08:09:01,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46398 states to 46398 states and 70917 transitions. [2024-11-16 08:09:01,322 INFO L78 Accepts]: Start accepts. Automaton has 46398 states and 70917 transitions. Word has length 161 [2024-11-16 08:09:01,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:01,322 INFO L471 AbstractCegarLoop]: Abstraction has 46398 states and 70917 transitions. [2024-11-16 08:09:01,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:09:01,323 INFO L276 IsEmpty]: Start isEmpty. Operand 46398 states and 70917 transitions. [2024-11-16 08:09:01,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 08:09:01,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:01,347 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] [2024-11-16 08:09:01,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:09:01,347 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:01,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:01,348 INFO L85 PathProgramCache]: Analyzing trace with hash 613884214, now seen corresponding path program 1 times [2024-11-16 08:09:01,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:01,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888429523] [2024-11-16 08:09:01,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:01,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:01,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:01,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 08:09:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:01,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 08:09:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:01,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 08:09:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:01,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:09:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:01,534 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 08:09:01,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:01,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888429523] [2024-11-16 08:09:01,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888429523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:01,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:01,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:01,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688471900] [2024-11-16 08:09:01,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:01,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:01,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:01,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:01,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:01,537 INFO L87 Difference]: Start difference. First operand 46398 states and 70917 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:09:07,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:07,974 INFO L93 Difference]: Finished difference Result 163805 states and 255352 transitions. [2024-11-16 08:09:07,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:07,975 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2024-11-16 08:09:07,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:08,381 INFO L225 Difference]: With dead ends: 163805 [2024-11-16 08:09:08,381 INFO L226 Difference]: Without dead ends: 117425 [2024-11-16 08:09:08,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:08,645 INFO L432 NwaCegarLoop]: 598 mSDtfsCounter, 1415 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 3052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:08,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 2741 Invalid, 3052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 08:09:08,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117425 states. [2024-11-16 08:09:12,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117425 to 92639. [2024-11-16 08:09:12,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92639 states, 85950 states have (on average 1.479674229203025) internal successors, (127178), 86208 states have internal predecessors, (127178), 4890 states have call successors, (4890), 1543 states have call predecessors, (4890), 1798 states have return successors, (11705), 5143 states have call predecessors, (11705), 4888 states have call successors, (11705) [2024-11-16 08:09:13,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92639 states to 92639 states and 143773 transitions. [2024-11-16 08:09:13,497 INFO L78 Accepts]: Start accepts. Automaton has 92639 states and 143773 transitions. Word has length 161 [2024-11-16 08:09:13,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:13,497 INFO L471 AbstractCegarLoop]: Abstraction has 92639 states and 143773 transitions. [2024-11-16 08:09:13,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:09:13,498 INFO L276 IsEmpty]: Start isEmpty. Operand 92639 states and 143773 transitions. [2024-11-16 08:09:13,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 08:09:13,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:13,551 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] [2024-11-16 08:09:13,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:09:13,552 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:13,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:13,552 INFO L85 PathProgramCache]: Analyzing trace with hash 758293909, now seen corresponding path program 1 times [2024-11-16 08:09:13,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:13,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801935654] [2024-11-16 08:09:13,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:13,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 08:09:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 08:09:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 08:09:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:09:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,725 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 08:09:13,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:13,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801935654] [2024-11-16 08:09:13,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801935654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:13,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:13,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:13,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916381718] [2024-11-16 08:09:13,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:13,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:13,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:13,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:13,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:13,727 INFO L87 Difference]: Start difference. First operand 92639 states and 143773 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 08:09:19,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:19,618 INFO L93 Difference]: Finished difference Result 211539 states and 337382 transitions. [2024-11-16 08:09:19,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:09:19,619 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2024-11-16 08:09:19,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:20,249 INFO L225 Difference]: With dead ends: 211539 [2024-11-16 08:09:20,249 INFO L226 Difference]: Without dead ends: 118918 [2024-11-16 08:09:20,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:09:20,395 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 1192 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:20,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 1130 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 08:09:20,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118918 states.