./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.10.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/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-wip.dd.update-z3-fca748b-m [2024-11-19 22:21:05,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:21:05,100 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:21:05,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:21:05,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:21:05,131 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:21:05,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:21:05,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:21:05,134 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:21:05,135 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:21:05,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:21:05,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:21:05,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:21:05,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:21:05,139 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:21:05,140 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:21:05,140 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:21:05,140 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:21:05,141 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:21:05,141 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:21:05,141 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:21:05,144 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:21:05,144 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:21:05,145 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:21:05,145 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:21:05,145 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:21:05,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:21:05,146 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:21:05,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:21:05,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:21:05,147 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:21:05,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:21:05,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:21:05,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:21:05,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:21:05,148 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:21:05,148 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:21:05,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:21:05,149 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:21:05,150 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:21:05,151 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:21:05,151 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:21:05,151 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9102a3dc168a1a089cfcbe45042daf88c4c5eebedf113fc0c98e676c1fbaab5b [2024-11-19 22:21:05,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:21:05,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:21:05,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:21:05,424 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:21:05,425 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:21:05,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.10.cil-1.c [2024-11-19 22:21:06,879 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:21:07,097 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:21:07,098 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.10.cil-1.c [2024-11-19 22:21:07,120 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16735462f/92a0ef273afa443ea55f1f555c638783/FLAG14c63851c [2024-11-19 22:21:07,457 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16735462f/92a0ef273afa443ea55f1f555c638783 [2024-11-19 22:21:07,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:21:07,462 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:21:07,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:21:07,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:21:07,470 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:21:07,471 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:21:07" (1/1) ... [2024-11-19 22:21:07,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c3222b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07, skipping insertion in model container [2024-11-19 22:21:07,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:21:07" (1/1) ... [2024-11-19 22:21:07,524 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:21:07,687 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] [2024-11-19 22:21:07,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:21:07,806 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:21:07,817 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] [2024-11-19 22:21:07,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:21:07,926 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:21:07,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07 WrapperNode [2024-11-19 22:21:07,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:21:07,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:21:07,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:21:07,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:21:07,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07" (1/1) ... [2024-11-19 22:21:07,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07" (1/1) ... [2024-11-19 22:21:07,984 INFO L138 Inliner]: procedures = 48, calls = 62, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 765 [2024-11-19 22:21:07,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:21:07,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:21:07,985 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:21:07,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:21:07,997 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07" (1/1) ... [2024-11-19 22:21:07,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07" (1/1) ... [2024-11-19 22:21:08,001 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07" (1/1) ... [2024-11-19 22:21:08,021 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]. [2024-11-19 22:21:08,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07" (1/1) ... [2024-11-19 22:21:08,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07" (1/1) ... [2024-11-19 22:21:08,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07" (1/1) ... [2024-11-19 22:21:08,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07" (1/1) ... [2024-11-19 22:21:08,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07" (1/1) ... [2024-11-19 22:21:08,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07" (1/1) ... [2024-11-19 22:21:08,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:21:08,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:21:08,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:21:08,064 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:21:08,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07" (1/1) ... [2024-11-19 22:21:08,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:21:08,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:21:08,103 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) [2024-11-19 22:21:08,110 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 [2024-11-19 22:21:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:21:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-19 22:21:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-19 22:21:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-19 22:21:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-19 22:21:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-19 22:21:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-19 22:21:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-19 22:21:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-19 22:21:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-19 22:21:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-19 22:21:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-19 22:21:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-19 22:21:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:21:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-19 22:21:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-19 22:21:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:21:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:21:08,274 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:21:08,276 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:21:09,118 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-11-19 22:21:09,118 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:21:09,151 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:21:09,155 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-19 22:21:09,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:21:09 BoogieIcfgContainer [2024-11-19 22:21:09,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:21:09,158 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:21:09,159 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:21:09,162 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:21:09,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:21:07" (1/3) ... [2024-11-19 22:21:09,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22123330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:21:09, skipping insertion in model container [2024-11-19 22:21:09,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:21:07" (2/3) ... [2024-11-19 22:21:09,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22123330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:21:09, skipping insertion in model container [2024-11-19 22:21:09,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:21:09" (3/3) ... [2024-11-19 22:21:09,166 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.10.cil-1.c [2024-11-19 22:21:09,183 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:21:09,183 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 22:21:09,261 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:21:09,267 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;@2e7039fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:21:09,268 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 22:21:09,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 351 states, 316 states have (on average 1.639240506329114) internal successors, (518), 320 states have internal predecessors, (518), 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) [2024-11-19 22:21:09,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 22:21:09,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:21:09,289 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] [2024-11-19 22:21:09,289 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:21:09,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:21:09,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1236979497, now seen corresponding path program 1 times [2024-11-19 22:21:09,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:21:09,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829974568] [2024-11-19 22:21:09,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:21:09,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:21:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:09,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:21:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:09,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:21:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:09,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-19 22:21:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:09,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 22:21:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:09,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-19 22:21:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:09,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:21:09,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:21:09,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829974568] [2024-11-19 22:21:10,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829974568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:21:10,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:21:10,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:21:10,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165715567] [2024-11-19 22:21:10,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:21:10,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:21:10,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:21:10,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:21:10,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:21:10,038 INFO L87 Difference]: Start difference. First operand has 351 states, 316 states have (on average 1.639240506329114) internal successors, (518), 320 states have internal predecessors, (518), 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 5 states, 5 states have (on average 29.0) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 22:21:11,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:21:11,832 INFO L93 Difference]: Finished difference Result 814 states and 1338 transitions. [2024-11-19 22:21:11,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:21:11,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-19 22:21:11,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:21:11,855 INFO L225 Difference]: With dead ends: 814 [2024-11-19 22:21:11,856 INFO L226 Difference]: Without dead ends: 465 [2024-11-19 22:21:11,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:21:11,869 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 913 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 22:21:11,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 710 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 22:21:11,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-11-19 22:21:11,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 345. [2024-11-19 22:21:11,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 312 states have (on average 1.5544871794871795) internal successors, (485), 314 states have internal predecessors, (485), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-19 22:21:11,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 535 transitions. [2024-11-19 22:21:11,972 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 535 transitions. Word has length 156 [2024-11-19 22:21:11,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:21:11,973 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 535 transitions. [2024-11-19 22:21:11,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 22:21:11,974 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 535 transitions. [2024-11-19 22:21:11,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 22:21:11,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:21:11,978 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] [2024-11-19 22:21:11,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 22:21:11,979 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:21:11,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:21:11,980 INFO L85 PathProgramCache]: Analyzing trace with hash 851117095, now seen corresponding path program 1 times [2024-11-19 22:21:11,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:21:11,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558204318] [2024-11-19 22:21:11,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:21:11,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:21:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:12,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:21:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:12,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:21:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:12,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-19 22:21:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:12,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 22:21:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:12,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-19 22:21:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:12,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:21:12,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:21:12,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558204318] [2024-11-19 22:21:12,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558204318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:21:12,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:21:12,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:21:12,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987615473] [2024-11-19 22:21:12,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:21:12,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:21:12,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:21:12,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:21:12,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:21:12,237 INFO L87 Difference]: Start difference. First operand 345 states and 535 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 22:21:13,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:21:13,760 INFO L93 Difference]: Finished difference Result 796 states and 1254 transitions. [2024-11-19 22:21:13,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:21:13,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-19 22:21:13,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:21:13,765 INFO L225 Difference]: With dead ends: 796 [2024-11-19 22:21:13,765 INFO L226 Difference]: Without dead ends: 465 [2024-11-19 22:21:13,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:21:13,771 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 900 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:21:13,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 696 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 22:21:13,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-11-19 22:21:13,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 345. [2024-11-19 22:21:13,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 312 states have (on average 1.5512820512820513) internal successors, (484), 314 states have internal predecessors, (484), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-19 22:21:13,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 534 transitions. [2024-11-19 22:21:13,821 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 534 transitions. Word has length 156 [2024-11-19 22:21:13,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:21:13,821 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 534 transitions. [2024-11-19 22:21:13,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 22:21:13,822 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 534 transitions. [2024-11-19 22:21:13,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 22:21:13,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:21:13,825 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] [2024-11-19 22:21:13,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 22:21:13,825 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:21:13,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:21:13,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1007097637, now seen corresponding path program 1 times [2024-11-19 22:21:13,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:21:13,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635206342] [2024-11-19 22:21:13,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:21:13,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:21:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:13,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:21:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:14,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:21:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:14,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-19 22:21:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:14,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 22:21:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:14,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-19 22:21:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:21:14,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:21:14,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635206342] [2024-11-19 22:21:14,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635206342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:21:14,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:21:14,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:21:14,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907622852] [2024-11-19 22:21:14,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:21:14,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:21:14,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:21:14,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:21:14,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:21:14,152 INFO L87 Difference]: Start difference. First operand 345 states and 534 transitions. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 4 states have internal predecessors, (145), 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) [2024-11-19 22:21:16,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:21:16,541 INFO L93 Difference]: Finished difference Result 1253 states and 1987 transitions. [2024-11-19 22:21:16,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 22:21:16,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 4 states have internal predecessors, (145), 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 156 [2024-11-19 22:21:16,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:21:16,547 INFO L225 Difference]: With dead ends: 1253 [2024-11-19 22:21:16,547 INFO L226 Difference]: Without dead ends: 926 [2024-11-19 22:21:16,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-19 22:21:16,549 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 1357 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 22:21:16,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 1192 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 22:21:16,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-19 22:21:16,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 685. [2024-11-19 22:21:16,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 626 states have (on average 1.5638977635782747) internal successors, (979), 629 states have internal predecessors, (979), 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) [2024-11-19 22:21:16,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 1070 transitions. [2024-11-19 22:21:16,599 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 1070 transitions. Word has length 156 [2024-11-19 22:21:16,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:21:16,599 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 1070 transitions. [2024-11-19 22:21:16,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 4 states have internal predecessors, (145), 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) [2024-11-19 22:21:16,599 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1070 transitions. [2024-11-19 22:21:16,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 22:21:16,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:21:16,604 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] [2024-11-19 22:21:16,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 22:21:16,605 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:21:16,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:21:16,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1673132833, now seen corresponding path program 1 times [2024-11-19 22:21:16,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:21:16,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611173805] [2024-11-19 22:21:16,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:21:16,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:21:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:16,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:21:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:16,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:21:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:16,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-19 22:21:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:16,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 22:21:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:16,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-19 22:21:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:16,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:21:16,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:21:16,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611173805] [2024-11-19 22:21:16,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611173805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:21:16,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:21:16,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:21:16,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134748046] [2024-11-19 22:21:16,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:21:16,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:21:16,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:21:16,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:21:16,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:21:16,921 INFO L87 Difference]: Start difference. First operand 685 states and 1070 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:19,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:21:19,786 INFO L93 Difference]: Finished difference Result 2068 states and 3285 transitions. [2024-11-19 22:21:19,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 22:21:19,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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 156 [2024-11-19 22:21:19,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:21:19,797 INFO L225 Difference]: With dead ends: 2068 [2024-11-19 22:21:19,798 INFO L226 Difference]: Without dead ends: 1401 [2024-11-19 22:21:19,801 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 [2024-11-19 22:21:19,802 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 1382 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 3071 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 3132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:21:19,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1399 Valid, 2317 Invalid, 3132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3071 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-19 22:21:19,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2024-11-19 22:21:19,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1002. [2024-11-19 22:21:19,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 917 states have (on average 1.5572519083969465) internal successors, (1428), 921 states have internal predecessors, (1428), 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) [2024-11-19 22:21:19,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1559 transitions. [2024-11-19 22:21:19,892 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1559 transitions. Word has length 156 [2024-11-19 22:21:19,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:21:19,893 INFO L471 AbstractCegarLoop]: Abstraction has 1002 states and 1559 transitions. [2024-11-19 22:21:19,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:19,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1559 transitions. [2024-11-19 22:21:19,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 22:21:19,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:21:19,896 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] [2024-11-19 22:21:19,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 22:21:19,896 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:21:19,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:21:19,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1222880861, now seen corresponding path program 1 times [2024-11-19 22:21:19,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:21:19,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774356112] [2024-11-19 22:21:19,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:21:19,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:21:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:20,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:21:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:20,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:21:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:20,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-19 22:21:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:20,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 22:21:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:20,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-19 22:21:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:21:20,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:21:20,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774356112] [2024-11-19 22:21:20,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774356112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:21:20,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:21:20,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:21:20,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804542340] [2024-11-19 22:21:20,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:21:20,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:21:20,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:21:20,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:21:20,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:21:20,193 INFO L87 Difference]: Start difference. First operand 1002 states and 1559 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:23,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:21:23,216 INFO L93 Difference]: Finished difference Result 3270 states and 5184 transitions. [2024-11-19 22:21:23,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 22:21:23,216 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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 156 [2024-11-19 22:21:23,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:21:23,227 INFO L225 Difference]: With dead ends: 3270 [2024-11-19 22:21:23,228 INFO L226 Difference]: Without dead ends: 2286 [2024-11-19 22:21:23,231 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 [2024-11-19 22:21:23,232 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 1486 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 2603 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 2702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:21:23,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1473 Invalid, 2702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2603 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-19 22:21:23,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2286 states. [2024-11-19 22:21:23,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2286 to 1637. [2024-11-19 22:21:23,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1637 states, 1500 states have (on average 1.5513333333333332) internal successors, (2327), 1506 states have internal predecessors, (2327), 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) [2024-11-19 22:21:23,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1637 states to 1637 states and 2542 transitions. [2024-11-19 22:21:23,343 INFO L78 Accepts]: Start accepts. Automaton has 1637 states and 2542 transitions. Word has length 156 [2024-11-19 22:21:23,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:21:23,343 INFO L471 AbstractCegarLoop]: Abstraction has 1637 states and 2542 transitions. [2024-11-19 22:21:23,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:23,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1637 states and 2542 transitions. [2024-11-19 22:21:23,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 22:21:23,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:21:23,346 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] [2024-11-19 22:21:23,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 22:21:23,346 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:21:23,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:21:23,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1454645985, now seen corresponding path program 1 times [2024-11-19 22:21:23,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:21:23,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707679063] [2024-11-19 22:21:23,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:21:23,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:21:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:23,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:21:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:23,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:21:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:23,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-19 22:21:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:23,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 22:21:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:23,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-19 22:21:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:23,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:21:23,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:21:23,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707679063] [2024-11-19 22:21:23,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707679063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:21:23,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:21:23,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:21:23,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357665421] [2024-11-19 22:21:23,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:21:23,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:21:23,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:21:23,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:21:23,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:21:23,634 INFO L87 Difference]: Start difference. First operand 1637 states and 2542 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:26,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:21:26,682 INFO L93 Difference]: Finished difference Result 5582 states and 8815 transitions. [2024-11-19 22:21:26,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 22:21:26,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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 156 [2024-11-19 22:21:26,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:21:26,701 INFO L225 Difference]: With dead ends: 5582 [2024-11-19 22:21:26,701 INFO L226 Difference]: Without dead ends: 3963 [2024-11-19 22:21:26,707 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 [2024-11-19 22:21:26,708 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 1380 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 3041 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 3104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:21:26,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 2315 Invalid, 3104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3041 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-19 22:21:26,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3963 states. [2024-11-19 22:21:26,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3963 to 2913. [2024-11-19 22:21:26,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2913 states, 2672 states have (on average 1.5475299401197604) internal successors, (4135), 2682 states have internal predecessors, (4135), 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) [2024-11-19 22:21:26,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2913 states to 2913 states and 4524 transitions. [2024-11-19 22:21:26,959 INFO L78 Accepts]: Start accepts. Automaton has 2913 states and 4524 transitions. Word has length 156 [2024-11-19 22:21:26,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:21:26,959 INFO L471 AbstractCegarLoop]: Abstraction has 2913 states and 4524 transitions. [2024-11-19 22:21:26,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:26,960 INFO L276 IsEmpty]: Start isEmpty. Operand 2913 states and 4524 transitions. [2024-11-19 22:21:26,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 22:21:26,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:21:26,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:21:26,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 22:21:26,963 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:21:26,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:21:26,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1743465375, now seen corresponding path program 1 times [2024-11-19 22:21:26,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:21:26,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472764773] [2024-11-19 22:21:26,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:21:26,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:21:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:27,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:21:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:27,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:21:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:27,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-19 22:21:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:27,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 22:21:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:27,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-19 22:21:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:27,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:21:27,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:21:27,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472764773] [2024-11-19 22:21:27,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472764773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:21:27,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:21:27,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:21:27,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401159940] [2024-11-19 22:21:27,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:21:27,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:21:27,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:21:27,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:21:27,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:21:27,255 INFO L87 Difference]: Start difference. First operand 2913 states and 4524 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:30,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:21:30,282 INFO L93 Difference]: Finished difference Result 10216 states and 16111 transitions. [2024-11-19 22:21:30,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 22:21:30,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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 156 [2024-11-19 22:21:30,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:21:30,314 INFO L225 Difference]: With dead ends: 10216 [2024-11-19 22:21:30,314 INFO L226 Difference]: Without dead ends: 7321 [2024-11-19 22:21:30,324 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 [2024-11-19 22:21:30,326 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 1379 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 3028 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 3091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:21:30,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 2315 Invalid, 3091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3028 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-19 22:21:30,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7321 states. [2024-11-19 22:21:30,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7321 to 5470. [2024-11-19 22:21:30,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5470 states, 5021 states have (on average 1.5449113722366064) internal successors, (7757), 5039 states have internal predecessors, (7757), 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) [2024-11-19 22:21:30,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 8512 transitions. [2024-11-19 22:21:30,749 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 8512 transitions. Word has length 156 [2024-11-19 22:21:30,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:21:30,749 INFO L471 AbstractCegarLoop]: Abstraction has 5470 states and 8512 transitions. [2024-11-19 22:21:30,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:30,749 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 8512 transitions. [2024-11-19 22:21:30,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 22:21:30,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:21:30,754 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] [2024-11-19 22:21:30,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 22:21:30,754 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:21:30,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:21:30,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1198592801, now seen corresponding path program 1 times [2024-11-19 22:21:30,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:21:30,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183918702] [2024-11-19 22:21:30,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:21:30,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:21:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:30,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:21:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:30,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:21:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:30,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-19 22:21:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:30,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 22:21:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:31,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-19 22:21:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:31,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:21:31,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:21:31,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183918702] [2024-11-19 22:21:31,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183918702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:21:31,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:21:31,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:21:31,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683798505] [2024-11-19 22:21:31,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:21:31,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:21:31,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:21:31,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:21:31,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:21:31,012 INFO L87 Difference]: Start difference. First operand 5470 states and 8512 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:34,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:21:34,386 INFO L93 Difference]: Finished difference Result 19483 states and 30761 transitions. [2024-11-19 22:21:34,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 22:21:34,386 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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 156 [2024-11-19 22:21:34,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:21:34,455 INFO L225 Difference]: With dead ends: 19483 [2024-11-19 22:21:34,456 INFO L226 Difference]: Without dead ends: 14031 [2024-11-19 22:21:34,476 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 [2024-11-19 22:21:34,479 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 1378 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 3015 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 3078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:21:34,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1395 Valid, 2315 Invalid, 3078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3015 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-19 22:21:34,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14031 states. [2024-11-19 22:21:35,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14031 to 10599. [2024-11-19 22:21:35,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10599 states, 9734 states have (on average 1.5433531949866448) internal successors, (15023), 9768 states have internal predecessors, (15023), 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) [2024-11-19 22:21:35,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10599 states to 10599 states and 16564 transitions. [2024-11-19 22:21:35,302 INFO L78 Accepts]: Start accepts. Automaton has 10599 states and 16564 transitions. Word has length 156 [2024-11-19 22:21:35,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:21:35,303 INFO L471 AbstractCegarLoop]: Abstraction has 10599 states and 16564 transitions. [2024-11-19 22:21:35,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:35,309 INFO L276 IsEmpty]: Start isEmpty. Operand 10599 states and 16564 transitions. [2024-11-19 22:21:35,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 22:21:35,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:21:35,320 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] [2024-11-19 22:21:35,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 22:21:35,320 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:21:35,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:21:35,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1873752927, now seen corresponding path program 1 times [2024-11-19 22:21:35,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:21:35,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48250317] [2024-11-19 22:21:35,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:21:35,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:21:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:35,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:21:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:35,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:21:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:35,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-19 22:21:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:35,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 22:21:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:35,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-19 22:21:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:35,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:21:35,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:21:35,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48250317] [2024-11-19 22:21:35,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48250317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:21:35,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:21:35,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:21:35,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624360879] [2024-11-19 22:21:35,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:21:35,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:21:35,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:21:35,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:21:35,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:21:35,567 INFO L87 Difference]: Start difference. First operand 10599 states and 16564 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:39,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:21:39,381 INFO L93 Difference]: Finished difference Result 38018 states and 60255 transitions. [2024-11-19 22:21:39,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 22:21:39,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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 156 [2024-11-19 22:21:39,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:21:39,485 INFO L225 Difference]: With dead ends: 38018 [2024-11-19 22:21:39,486 INFO L226 Difference]: Without dead ends: 27437 [2024-11-19 22:21:39,521 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 [2024-11-19 22:21:39,523 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 1377 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 3002 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 2315 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 [2024-11-19 22:21:39,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 2315 Invalid, 3065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3002 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-19 22:21:39,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27437 states. [2024-11-19 22:21:40,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27437 to 20888. [2024-11-19 22:21:40,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20888 states, 19191 states have (on average 1.5424417695794903) internal successors, (29601), 19257 states have internal predecessors, (29601), 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) [2024-11-19 22:21:40,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20888 states to 20888 states and 32876 transitions. [2024-11-19 22:21:40,780 INFO L78 Accepts]: Start accepts. Automaton has 20888 states and 32876 transitions. Word has length 156 [2024-11-19 22:21:40,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:21:40,781 INFO L471 AbstractCegarLoop]: Abstraction has 20888 states and 32876 transitions. [2024-11-19 22:21:40,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:40,781 INFO L276 IsEmpty]: Start isEmpty. Operand 20888 states and 32876 transitions. [2024-11-19 22:21:40,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 22:21:40,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:21:40,798 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] [2024-11-19 22:21:40,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 22:21:40,798 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:21:40,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:21:40,800 INFO L85 PathProgramCache]: Analyzing trace with hash 925700961, now seen corresponding path program 1 times [2024-11-19 22:21:40,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:21:40,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202288907] [2024-11-19 22:21:40,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:21:40,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:21:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:41,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:21:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:41,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:21:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:41,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-19 22:21:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:41,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 22:21:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:41,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-19 22:21:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:41,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:21:41,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:21:41,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202288907] [2024-11-19 22:21:41,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202288907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:21:41,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:21:41,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:21:41,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392355755] [2024-11-19 22:21:41,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:21:41,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:21:41,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:21:41,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:21:41,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:21:41,162 INFO L87 Difference]: Start difference. First operand 20888 states and 32876 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:46,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:21:46,039 INFO L93 Difference]: Finished difference Result 75089 states and 119845 transitions. [2024-11-19 22:21:46,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 22:21:46,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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 156 [2024-11-19 22:21:46,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:21:46,243 INFO L225 Difference]: With dead ends: 75089 [2024-11-19 22:21:46,243 INFO L226 Difference]: Without dead ends: 54219 [2024-11-19 22:21:46,313 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 [2024-11-19 22:21:46,314 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 1376 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 3052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:21:46,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 2315 Invalid, 3052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-19 22:21:46,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54219 states. [2024-11-19 22:21:48,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54219 to 41529. [2024-11-19 22:21:48,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41529 states, 38168 states have (on average 1.5418937329700273) internal successors, (58851), 38298 states have internal predecessors, (58851), 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) [2024-11-19 22:21:49,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41529 states to 41529 states and 66080 transitions. [2024-11-19 22:21:49,087 INFO L78 Accepts]: Start accepts. Automaton has 41529 states and 66080 transitions. Word has length 156 [2024-11-19 22:21:49,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:21:49,088 INFO L471 AbstractCegarLoop]: Abstraction has 41529 states and 66080 transitions. [2024-11-19 22:21:49,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:49,088 INFO L276 IsEmpty]: Start isEmpty. Operand 41529 states and 66080 transitions. [2024-11-19 22:21:49,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 22:21:49,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:21:49,114 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] [2024-11-19 22:21:49,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 22:21:49,114 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:21:49,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:21:49,115 INFO L85 PathProgramCache]: Analyzing trace with hash 340929311, now seen corresponding path program 1 times [2024-11-19 22:21:49,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:21:49,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665520375] [2024-11-19 22:21:49,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:21:49,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:21:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:49,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:21:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:49,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:21:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:49,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-19 22:21:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:49,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 22:21:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:49,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-19 22:21:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:21:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:21:49,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:21:49,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665520375] [2024-11-19 22:21:49,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665520375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:21:49,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:21:49,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:21:49,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587960379] [2024-11-19 22:21:49,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:21:49,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:21:49,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:21:49,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:21:49,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:21:49,330 INFO L87 Difference]: Start difference. First operand 41529 states and 66080 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:21:56,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:21:56,480 INFO L93 Difference]: Finished difference Result 149232 states and 240875 transitions. [2024-11-19 22:21:56,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 22:21:56,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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 156 [2024-11-19 22:21:56,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:21:56,979 INFO L225 Difference]: With dead ends: 149232 [2024-11-19 22:21:56,979 INFO L226 Difference]: Without dead ends: 107721 [2024-11-19 22:21:57,111 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 [2024-11-19 22:21:57,111 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 1375 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 2976 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 3039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:21:57,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 2315 Invalid, 3039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2976 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-19 22:21:57,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107721 states. [2024-11-19 22:22:01,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107721 to 82938. [2024-11-19 22:22:02,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82938 states, 76249 states have (on average 1.5415415284134875) internal successors, (117541), 76507 states have internal predecessors, (117541), 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) [2024-11-19 22:22:02,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82938 states to 82938 states and 134136 transitions. [2024-11-19 22:22:02,338 INFO L78 Accepts]: Start accepts. Automaton has 82938 states and 134136 transitions. Word has length 156 [2024-11-19 22:22:02,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:22:02,339 INFO L471 AbstractCegarLoop]: Abstraction has 82938 states and 134136 transitions. [2024-11-19 22:22:02,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-11-19 22:22:02,339 INFO L276 IsEmpty]: Start isEmpty. Operand 82938 states and 134136 transitions. [2024-11-19 22:22:02,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 22:22:02,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:22:02,387 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] [2024-11-19 22:22:02,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 22:22:02,387 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:22:02,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:22:02,388 INFO L85 PathProgramCache]: Analyzing trace with hash -93576287, now seen corresponding path program 1 times [2024-11-19 22:22:02,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:22:02,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185712009] [2024-11-19 22:22:02,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:22:02,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:22:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:22:02,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:22:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:22:02,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-19 22:22:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:22:02,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-19 22:22:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:22:02,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 22:22:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:22:02,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-19 22:22:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:22:02,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:22:02,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:22:02,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185712009] [2024-11-19 22:22:02,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185712009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:22:02,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:22:02,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:22:02,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282513178] [2024-11-19 22:22:02,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:22:02,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:22:02,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:22:02,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:22:02,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:22:02,593 INFO L87 Difference]: Start difference. First operand 82938 states and 134136 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 5 states have internal predecessors, (145), 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)