./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd --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 e7162a37b2481575f46ee042f017cf4130087aba4666f87e20be1f5306ddf30d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:51:11,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:51:11,408 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 12:51:11,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:51:11,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:51:11,458 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:51:11,459 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:51:11,459 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:51:11,460 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:51:11,461 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:51:11,462 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:51:11,462 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:51:11,462 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:51:11,463 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:51:11,463 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:51:11,463 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:51:11,463 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:51:11,463 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:51:11,463 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:51:11,463 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:51:11,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:51:11,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:51:11,464 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:51:11,464 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:51:11,464 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:51:11,464 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:51:11,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:51:11,464 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:51:11,464 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:51:11,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:51:11,465 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:51:11,465 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:51:11,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:51:11,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:51:11,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:51:11,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:51:11,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:51:11,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:51:11,466 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:51:11,466 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:51:11,466 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:51:11,466 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:51:11,466 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd 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 -> e7162a37b2481575f46ee042f017cf4130087aba4666f87e20be1f5306ddf30d [2024-11-13 12:51:11,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:51:11,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:51:11,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:51:11,841 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:51:11,842 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:51:11,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem11_label06.c Unable to find full path for "g++" [2024-11-13 12:51:13,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:51:14,279 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:51:14,283 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/sv-benchmarks/c/eca-rers2012/Problem11_label06.c [2024-11-13 12:51:14,304 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/data/3ef484940/1c60f3740f1b4c739b6063754410b8b0/FLAG4ac6cabbd [2024-11-13 12:51:14,322 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/data/3ef484940/1c60f3740f1b4c739b6063754410b8b0 [2024-11-13 12:51:14,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:51:14,325 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:51:14,327 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:51:14,327 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:51:14,333 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:51:14,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:51:14" (1/1) ... [2024-11-13 12:51:14,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b898c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:14, skipping insertion in model container [2024-11-13 12:51:14,335 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:51:14" (1/1) ... [2024-11-13 12:51:14,406 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:51:14,667 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/sv-benchmarks/c/eca-rers2012/Problem11_label06.c[9087,9100] [2024-11-13 12:51:14,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:51:14,973 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:51:15,024 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/sv-benchmarks/c/eca-rers2012/Problem11_label06.c[9087,9100] [2024-11-13 12:51:15,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:51:15,177 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:51:15,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:15 WrapperNode [2024-11-13 12:51:15,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:51:15,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:51:15,179 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:51:15,179 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:51:15,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:15" (1/1) ... [2024-11-13 12:51:15,223 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:15" (1/1) ... [2024-11-13 12:51:15,364 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2024-11-13 12:51:15,364 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:51:15,365 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:51:15,365 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:51:15,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:51:15,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:15" (1/1) ... [2024-11-13 12:51:15,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:15" (1/1) ... [2024-11-13 12:51:15,383 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:15" (1/1) ... [2024-11-13 12:51:15,419 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]. [2024-11-13 12:51:15,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:15" (1/1) ... [2024-11-13 12:51:15,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:15" (1/1) ... [2024-11-13 12:51:15,460 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:15" (1/1) ... [2024-11-13 12:51:15,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:15" (1/1) ... [2024-11-13 12:51:15,489 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:15" (1/1) ... [2024-11-13 12:51:15,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:15" (1/1) ... [2024-11-13 12:51:15,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:51:15,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:51:15,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:51:15,517 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:51:15,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:15" (1/1) ... [2024-11-13 12:51:15,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:51:15,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:51:15,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:51:15,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:51:15,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:51:15,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:51:15,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:51:15,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:51:15,684 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:51:15,686 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:51:18,180 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-13 12:51:18,181 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:51:18,211 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:51:18,211 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 12:51:18,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:51:18 BoogieIcfgContainer [2024-11-13 12:51:18,212 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:51:18,216 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:51:18,216 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:51:18,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:51:18,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:51:14" (1/3) ... [2024-11-13 12:51:18,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5922b594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:51:18, skipping insertion in model container [2024-11-13 12:51:18,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:15" (2/3) ... [2024-11-13 12:51:18,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5922b594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:51:18, skipping insertion in model container [2024-11-13 12:51:18,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:51:18" (3/3) ... [2024-11-13 12:51:18,227 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label06.c [2024-11-13 12:51:18,247 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:51:18,249 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem11_label06.c that has 1 procedures, 283 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 12:51:18,350 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:51:18,371 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;@71865dbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:51:18,373 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 12:51:18,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:18,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 12:51:18,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:18,396 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] [2024-11-13 12:51:18,397 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:18,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:18,405 INFO L85 PathProgramCache]: Analyzing trace with hash -922273680, now seen corresponding path program 1 times [2024-11-13 12:51:18,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:18,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943319542] [2024-11-13 12:51:18,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:18,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:19,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:51:19,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:19,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943319542] [2024-11-13 12:51:19,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943319542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:19,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:19,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:51:19,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532175693] [2024-11-13 12:51:19,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:19,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:19,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:19,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:19,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:19,090 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:20,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:20,849 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2024-11-13 12:51:20,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:20,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-13 12:51:20,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:20,878 INFO L225 Difference]: With dead ends: 761 [2024-11-13 12:51:20,878 INFO L226 Difference]: Without dead ends: 413 [2024-11-13 12:51:20,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:20,886 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 165 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:20,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 223 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 12:51:20,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-13 12:51:20,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2024-11-13 12:51:20,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.453883495145631) internal successors, (599), 412 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:20,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2024-11-13 12:51:20,947 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 63 [2024-11-13 12:51:20,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:20,947 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2024-11-13 12:51:20,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:20,948 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2024-11-13 12:51:20,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-13 12:51:20,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:20,952 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:20,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:51:20,953 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:20,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:20,954 INFO L85 PathProgramCache]: Analyzing trace with hash -456280297, now seen corresponding path program 1 times [2024-11-13 12:51:20,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:20,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150019940] [2024-11-13 12:51:20,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:20,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:21,371 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:51:21,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:21,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150019940] [2024-11-13 12:51:21,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150019940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:21,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:21,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:51:21,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519575530] [2024-11-13 12:51:21,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:21,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:21,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:21,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:21,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:21,375 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:22,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:22,597 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2024-11-13 12:51:22,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:22,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-11-13 12:51:22,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:22,604 INFO L225 Difference]: With dead ends: 1211 [2024-11-13 12:51:22,604 INFO L226 Difference]: Without dead ends: 800 [2024-11-13 12:51:22,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:22,606 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 142 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:22,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 121 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 12:51:22,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-13 12:51:22,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2024-11-13 12:51:22,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3743654822335025) internal successors, (1083), 788 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:22,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2024-11-13 12:51:22,654 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 131 [2024-11-13 12:51:22,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:22,654 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2024-11-13 12:51:22,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:22,654 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2024-11-13 12:51:22,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 12:51:22,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:22,658 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:22,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:51:22,658 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:22,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:22,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1125268356, now seen corresponding path program 1 times [2024-11-13 12:51:22,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:22,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566928615] [2024-11-13 12:51:22,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:22,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:23,320 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:51:23,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:23,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566928615] [2024-11-13 12:51:23,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566928615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:23,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:23,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:51:23,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102248915] [2024-11-13 12:51:23,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:23,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:23,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:23,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:23,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:23,326 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:24,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:24,500 INFO L93 Difference]: Finished difference Result 1945 states and 2612 transitions. [2024-11-13 12:51:24,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:24,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2024-11-13 12:51:24,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:24,509 INFO L225 Difference]: With dead ends: 1945 [2024-11-13 12:51:24,509 INFO L226 Difference]: Without dead ends: 1158 [2024-11-13 12:51:24,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:24,512 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:24,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 190 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 12:51:24,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-11-13 12:51:24,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1157. [2024-11-13 12:51:24,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.2707612456747406) internal successors, (1469), 1156 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:24,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1469 transitions. [2024-11-13 12:51:24,581 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1469 transitions. Word has length 133 [2024-11-13 12:51:24,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:24,582 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1469 transitions. [2024-11-13 12:51:24,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:24,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1469 transitions. [2024-11-13 12:51:24,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-13 12:51:24,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:24,593 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:24,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:51:24,597 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:24,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:24,598 INFO L85 PathProgramCache]: Analyzing trace with hash -231634819, now seen corresponding path program 1 times [2024-11-13 12:51:24,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:24,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84916711] [2024-11-13 12:51:24,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:24,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:25,068 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:51:25,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:25,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84916711] [2024-11-13 12:51:25,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84916711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:25,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:25,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:25,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989353500] [2024-11-13 12:51:25,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:25,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:25,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:25,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:25,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:25,073 INFO L87 Difference]: Start difference. First operand 1157 states and 1469 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:26,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:26,263 INFO L93 Difference]: Finished difference Result 2519 states and 3349 transitions. [2024-11-13 12:51:26,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:26,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 190 [2024-11-13 12:51:26,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:26,274 INFO L225 Difference]: With dead ends: 2519 [2024-11-13 12:51:26,275 INFO L226 Difference]: Without dead ends: 1548 [2024-11-13 12:51:26,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:26,279 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 172 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:26,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 321 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 12:51:26,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2024-11-13 12:51:26,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1545. [2024-11-13 12:51:26,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1544 states have (on average 1.2933937823834196) internal successors, (1997), 1544 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:26,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1997 transitions. [2024-11-13 12:51:26,339 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1997 transitions. Word has length 190 [2024-11-13 12:51:26,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:26,341 INFO L471 AbstractCegarLoop]: Abstraction has 1545 states and 1997 transitions. [2024-11-13 12:51:26,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:26,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1997 transitions. [2024-11-13 12:51:26,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-11-13 12:51:26,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:26,349 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:26,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:51:26,350 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:26,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:26,350 INFO L85 PathProgramCache]: Analyzing trace with hash -403812897, now seen corresponding path program 1 times [2024-11-13 12:51:26,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:26,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382303644] [2024-11-13 12:51:26,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:26,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-13 12:51:27,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:27,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382303644] [2024-11-13 12:51:27,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382303644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:27,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:27,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:27,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560326819] [2024-11-13 12:51:27,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:27,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:27,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:27,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:27,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:27,038 INFO L87 Difference]: Start difference. First operand 1545 states and 1997 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:28,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:28,316 INFO L93 Difference]: Finished difference Result 4009 states and 5316 transitions. [2024-11-13 12:51:28,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:28,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2024-11-13 12:51:28,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:28,327 INFO L225 Difference]: With dead ends: 4009 [2024-11-13 12:51:28,327 INFO L226 Difference]: Without dead ends: 2650 [2024-11-13 12:51:28,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:28,331 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 144 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:28,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 346 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 12:51:28,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2024-11-13 12:51:28,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2650. [2024-11-13 12:51:28,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2650 states, 2649 states have (on average 1.2431106077765195) internal successors, (3293), 2649 states have internal predecessors, (3293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:28,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3293 transitions. [2024-11-13 12:51:28,397 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3293 transitions. Word has length 245 [2024-11-13 12:51:28,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:28,399 INFO L471 AbstractCegarLoop]: Abstraction has 2650 states and 3293 transitions. [2024-11-13 12:51:28,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:28,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3293 transitions. [2024-11-13 12:51:28,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-13 12:51:28,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:28,404 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:28,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 12:51:28,405 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:28,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:28,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1653467086, now seen corresponding path program 1 times [2024-11-13 12:51:28,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:28,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387607094] [2024-11-13 12:51:28,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:28,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:29,132 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 25 proven. 96 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-13 12:51:29,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:29,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387607094] [2024-11-13 12:51:29,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387607094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:51:29,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948505204] [2024-11-13 12:51:29,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:29,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:51:29,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:51:29,138 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:51:29,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 12:51:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:29,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:51:29,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:51:29,485 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-13 12:51:29,485 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:51:29,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948505204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:29,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:51:29,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-13 12:51:29,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543732413] [2024-11-13 12:51:29,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:29,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:29,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:29,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:29,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:51:29,490 INFO L87 Difference]: Start difference. First operand 2650 states and 3293 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:30,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:30,690 INFO L93 Difference]: Finished difference Result 6228 states and 7865 transitions. [2024-11-13 12:51:30,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:30,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 251 [2024-11-13 12:51:30,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:30,708 INFO L225 Difference]: With dead ends: 6228 [2024-11-13 12:51:30,708 INFO L226 Difference]: Without dead ends: 3764 [2024-11-13 12:51:30,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:51:30,713 INFO L432 NwaCegarLoop]: 362 mSDtfsCounter, 133 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:30,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 384 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 12:51:30,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3764 states. [2024-11-13 12:51:30,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3764 to 3755. [2024-11-13 12:51:30,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3755 states, 3754 states have (on average 1.2192328183271177) internal successors, (4577), 3754 states have internal predecessors, (4577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:30,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 4577 transitions. [2024-11-13 12:51:30,840 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 4577 transitions. Word has length 251 [2024-11-13 12:51:30,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:30,841 INFO L471 AbstractCegarLoop]: Abstraction has 3755 states and 4577 transitions. [2024-11-13 12:51:30,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:30,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 4577 transitions. [2024-11-13 12:51:30,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-13 12:51:30,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:30,850 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:30,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 12:51:31,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:51:31,055 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:31,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:31,056 INFO L85 PathProgramCache]: Analyzing trace with hash -125328985, now seen corresponding path program 1 times [2024-11-13 12:51:31,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:31,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917752883] [2024-11-13 12:51:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:31,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:31,489 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-13 12:51:31,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:31,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917752883] [2024-11-13 12:51:31,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917752883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:31,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:31,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:31,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170135395] [2024-11-13 12:51:31,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:31,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:31,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:31,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:31,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:31,492 INFO L87 Difference]: Start difference. First operand 3755 states and 4577 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:32,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:32,646 INFO L93 Difference]: Finished difference Result 8442 states and 10451 transitions. [2024-11-13 12:51:32,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:32,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 322 [2024-11-13 12:51:32,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:32,664 INFO L225 Difference]: With dead ends: 8442 [2024-11-13 12:51:32,664 INFO L226 Difference]: Without dead ends: 4873 [2024-11-13 12:51:32,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:32,669 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 135 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:32,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 343 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 12:51:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4873 states. [2024-11-13 12:51:32,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4873 to 4676. [2024-11-13 12:51:32,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4676 states, 4675 states have (on average 1.2094117647058824) internal successors, (5654), 4675 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:32,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4676 states to 4676 states and 5654 transitions. [2024-11-13 12:51:32,831 INFO L78 Accepts]: Start accepts. Automaton has 4676 states and 5654 transitions. Word has length 322 [2024-11-13 12:51:32,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:32,832 INFO L471 AbstractCegarLoop]: Abstraction has 4676 states and 5654 transitions. [2024-11-13 12:51:32,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:32,832 INFO L276 IsEmpty]: Start isEmpty. Operand 4676 states and 5654 transitions. [2024-11-13 12:51:32,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2024-11-13 12:51:32,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:32,841 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:32,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:51:32,841 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:32,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:32,842 INFO L85 PathProgramCache]: Analyzing trace with hash -820942991, now seen corresponding path program 1 times [2024-11-13 12:51:32,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:32,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696806363] [2024-11-13 12:51:32,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:32,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:33,107 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 331 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-13 12:51:33,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:33,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696806363] [2024-11-13 12:51:33,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696806363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:33,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:33,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:33,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753079247] [2024-11-13 12:51:33,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:33,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:33,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:33,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:33,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:33,111 INFO L87 Difference]: Start difference. First operand 4676 states and 5654 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:34,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:34,094 INFO L93 Difference]: Finished difference Result 9326 states and 11272 transitions. [2024-11-13 12:51:34,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:34,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2024-11-13 12:51:34,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:34,111 INFO L225 Difference]: With dead ends: 9326 [2024-11-13 12:51:34,111 INFO L226 Difference]: Without dead ends: 4652 [2024-11-13 12:51:34,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:34,116 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 159 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:34,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 150 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 12:51:34,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4652 states. [2024-11-13 12:51:34,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4652 to 4651. [2024-11-13 12:51:34,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4651 states, 4650 states have (on average 1.15247311827957) internal successors, (5359), 4650 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:34,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4651 states to 4651 states and 5359 transitions. [2024-11-13 12:51:34,211 INFO L78 Accepts]: Start accepts. Automaton has 4651 states and 5359 transitions. Word has length 325 [2024-11-13 12:51:34,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:34,211 INFO L471 AbstractCegarLoop]: Abstraction has 4651 states and 5359 transitions. [2024-11-13 12:51:34,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:34,212 INFO L276 IsEmpty]: Start isEmpty. Operand 4651 states and 5359 transitions. [2024-11-13 12:51:34,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-11-13 12:51:34,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:34,223 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:34,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 12:51:34,224 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:34,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:34,224 INFO L85 PathProgramCache]: Analyzing trace with hash 2108482390, now seen corresponding path program 1 times [2024-11-13 12:51:34,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:34,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292896769] [2024-11-13 12:51:34,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:34,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:35,251 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:51:35,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:35,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292896769] [2024-11-13 12:51:35,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292896769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:35,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:35,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:51:35,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570534721] [2024-11-13 12:51:35,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:35,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:51:35,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:35,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:51:35,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:51:35,256 INFO L87 Difference]: Start difference. First operand 4651 states and 5359 transitions. Second operand has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:36,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:36,974 INFO L93 Difference]: Finished difference Result 12640 states and 14697 transitions. [2024-11-13 12:51:36,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:51:36,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 388 [2024-11-13 12:51:36,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:36,996 INFO L225 Difference]: With dead ends: 12640 [2024-11-13 12:51:36,996 INFO L226 Difference]: Without dead ends: 7991 [2024-11-13 12:51:37,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:51:37,002 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 234 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:37,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 159 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 12:51:37,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7991 states. [2024-11-13 12:51:37,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7991 to 7435. [2024-11-13 12:51:37,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7435 states, 7434 states have (on average 1.146758138283562) internal successors, (8525), 7434 states have internal predecessors, (8525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:37,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7435 states to 7435 states and 8525 transitions. [2024-11-13 12:51:37,148 INFO L78 Accepts]: Start accepts. Automaton has 7435 states and 8525 transitions. Word has length 388 [2024-11-13 12:51:37,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:37,149 INFO L471 AbstractCegarLoop]: Abstraction has 7435 states and 8525 transitions. [2024-11-13 12:51:37,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:37,149 INFO L276 IsEmpty]: Start isEmpty. Operand 7435 states and 8525 transitions. [2024-11-13 12:51:37,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-11-13 12:51:37,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:37,164 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:37,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 12:51:37,164 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:37,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:37,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1468533546, now seen corresponding path program 1 times [2024-11-13 12:51:37,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:37,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818686342] [2024-11-13 12:51:37,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:37,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:37,599 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-13 12:51:37,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:37,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818686342] [2024-11-13 12:51:37,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818686342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:37,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:37,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:51:37,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95000280] [2024-11-13 12:51:37,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:37,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:37,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:37,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:37,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:37,601 INFO L87 Difference]: Start difference. First operand 7435 states and 8525 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:38,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:38,170 INFO L93 Difference]: Finished difference Result 14862 states and 17042 transitions. [2024-11-13 12:51:38,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:38,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 403 [2024-11-13 12:51:38,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:38,188 INFO L225 Difference]: With dead ends: 14862 [2024-11-13 12:51:38,189 INFO L226 Difference]: Without dead ends: 7429 [2024-11-13 12:51:38,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:38,197 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 216 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:38,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 39 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 12:51:38,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7429 states. [2024-11-13 12:51:38,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7429 to 7428. [2024-11-13 12:51:38,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7428 states, 7427 states have (on average 1.1460885956644675) internal successors, (8512), 7427 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7428 states to 7428 states and 8512 transitions. [2024-11-13 12:51:38,391 INFO L78 Accepts]: Start accepts. Automaton has 7428 states and 8512 transitions. Word has length 403 [2024-11-13 12:51:38,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:38,392 INFO L471 AbstractCegarLoop]: Abstraction has 7428 states and 8512 transitions. [2024-11-13 12:51:38,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:38,392 INFO L276 IsEmpty]: Start isEmpty. Operand 7428 states and 8512 transitions. [2024-11-13 12:51:38,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-11-13 12:51:38,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:38,404 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:38,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 12:51:38,405 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:38,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:38,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1630267561, now seen corresponding path program 1 times [2024-11-13 12:51:38,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:38,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451250756] [2024-11-13 12:51:38,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:38,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:38,866 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-13 12:51:38,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:38,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451250756] [2024-11-13 12:51:38,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451250756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:38,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:38,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:38,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322516005] [2024-11-13 12:51:38,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:38,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:38,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:38,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:38,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:38,869 INFO L87 Difference]: Start difference. First operand 7428 states and 8512 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:39,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:39,928 INFO L93 Difference]: Finished difference Result 16714 states and 19129 transitions. [2024-11-13 12:51:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:39,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 435 [2024-11-13 12:51:39,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:39,948 INFO L225 Difference]: With dead ends: 16714 [2024-11-13 12:51:39,948 INFO L226 Difference]: Without dead ends: 9288 [2024-11-13 12:51:39,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:39,958 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 67 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:39,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 179 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 12:51:39,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9288 states. [2024-11-13 12:51:40,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9288 to 9084. [2024-11-13 12:51:40,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9084 states, 9083 states have (on average 1.1353077177144115) internal successors, (10312), 9083 states have internal predecessors, (10312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:40,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9084 states to 9084 states and 10312 transitions. [2024-11-13 12:51:40,107 INFO L78 Accepts]: Start accepts. Automaton has 9084 states and 10312 transitions. Word has length 435 [2024-11-13 12:51:40,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:40,108 INFO L471 AbstractCegarLoop]: Abstraction has 9084 states and 10312 transitions. [2024-11-13 12:51:40,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:40,108 INFO L276 IsEmpty]: Start isEmpty. Operand 9084 states and 10312 transitions. [2024-11-13 12:51:40,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2024-11-13 12:51:40,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:40,124 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:40,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 12:51:40,125 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:40,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:40,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1537035571, now seen corresponding path program 1 times [2024-11-13 12:51:40,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:40,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136492026] [2024-11-13 12:51:40,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:40,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:40,527 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-13 12:51:40,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:40,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136492026] [2024-11-13 12:51:40,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136492026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:40,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:40,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:40,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115820101] [2024-11-13 12:51:40,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:40,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:40,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:40,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:40,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:40,531 INFO L87 Difference]: Start difference. First operand 9084 states and 10312 transitions. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:41,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:41,685 INFO L93 Difference]: Finished difference Result 20925 states and 23747 transitions. [2024-11-13 12:51:41,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:41,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 487 [2024-11-13 12:51:41,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:41,708 INFO L225 Difference]: With dead ends: 20925 [2024-11-13 12:51:41,709 INFO L226 Difference]: Without dead ends: 11107 [2024-11-13 12:51:41,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:41,717 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 65 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:41,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 350 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 12:51:41,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11107 states. [2024-11-13 12:51:41,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11107 to 10555. [2024-11-13 12:51:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10555 states, 10554 states have (on average 1.1255448171309457) internal successors, (11879), 10554 states have internal predecessors, (11879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:41,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10555 states to 10555 states and 11879 transitions. [2024-11-13 12:51:41,876 INFO L78 Accepts]: Start accepts. Automaton has 10555 states and 11879 transitions. Word has length 487 [2024-11-13 12:51:41,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:41,876 INFO L471 AbstractCegarLoop]: Abstraction has 10555 states and 11879 transitions. [2024-11-13 12:51:41,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:41,877 INFO L276 IsEmpty]: Start isEmpty. Operand 10555 states and 11879 transitions. [2024-11-13 12:51:41,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2024-11-13 12:51:41,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:41,896 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:41,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 12:51:41,896 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:41,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:41,897 INFO L85 PathProgramCache]: Analyzing trace with hash 2087371541, now seen corresponding path program 1 times [2024-11-13 12:51:41,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:41,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544075883] [2024-11-13 12:51:41,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:41,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:42,430 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 621 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-13 12:51:42,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:42,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544075883] [2024-11-13 12:51:42,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544075883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:42,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:42,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:42,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68371849] [2024-11-13 12:51:42,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:42,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:42,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:42,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:42,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:42,434 INFO L87 Difference]: Start difference. First operand 10555 states and 11879 transitions. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:43,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:43,548 INFO L93 Difference]: Finished difference Result 24423 states and 27490 transitions. [2024-11-13 12:51:43,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:43,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 527 [2024-11-13 12:51:43,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:43,578 INFO L225 Difference]: With dead ends: 24423 [2024-11-13 12:51:43,578 INFO L226 Difference]: Without dead ends: 13870 [2024-11-13 12:51:43,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:43,587 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 125 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:43,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 79 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 12:51:43,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13870 states. [2024-11-13 12:51:43,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13870 to 13867. [2024-11-13 12:51:43,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13867 states, 13866 states have (on average 1.117914322803981) internal successors, (15501), 13866 states have internal predecessors, (15501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13867 states to 13867 states and 15501 transitions. [2024-11-13 12:51:43,778 INFO L78 Accepts]: Start accepts. Automaton has 13867 states and 15501 transitions. Word has length 527 [2024-11-13 12:51:43,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:43,778 INFO L471 AbstractCegarLoop]: Abstraction has 13867 states and 15501 transitions. [2024-11-13 12:51:43,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:43,779 INFO L276 IsEmpty]: Start isEmpty. Operand 13867 states and 15501 transitions. [2024-11-13 12:51:43,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-13 12:51:43,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:43,794 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:43,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 12:51:43,795 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:43,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:43,795 INFO L85 PathProgramCache]: Analyzing trace with hash 178867198, now seen corresponding path program 1 times [2024-11-13 12:51:43,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:43,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134062748] [2024-11-13 12:51:43,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:43,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:45,411 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 324 proven. 406 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-13 12:51:45,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:45,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134062748] [2024-11-13 12:51:45,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134062748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:51:45,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131596153] [2024-11-13 12:51:45,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:45,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:51:45,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:51:45,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:51:45,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 12:51:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:45,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:51:45,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:51:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2024-11-13 12:51:45,956 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:51:45,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131596153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:45,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:51:45,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-13 12:51:45,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608782681] [2024-11-13 12:51:45,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:45,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:45,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:45,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:45,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:51:45,961 INFO L87 Difference]: Start difference. First operand 13867 states and 15501 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:46,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:46,891 INFO L93 Difference]: Finished difference Result 16261 states and 18135 transitions. [2024-11-13 12:51:46,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:46,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 533 [2024-11-13 12:51:46,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:46,917 INFO L225 Difference]: With dead ends: 16261 [2024-11-13 12:51:46,917 INFO L226 Difference]: Without dead ends: 16259 [2024-11-13 12:51:46,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:51:46,922 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 158 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:46,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 137 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 12:51:46,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16259 states. [2024-11-13 12:51:47,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16259 to 13867. [2024-11-13 12:51:47,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13867 states, 13866 states have (on average 1.117842203952113) internal successors, (15500), 13866 states have internal predecessors, (15500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:47,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13867 states to 13867 states and 15500 transitions. [2024-11-13 12:51:47,128 INFO L78 Accepts]: Start accepts. Automaton has 13867 states and 15500 transitions. Word has length 533 [2024-11-13 12:51:47,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:47,129 INFO L471 AbstractCegarLoop]: Abstraction has 13867 states and 15500 transitions. [2024-11-13 12:51:47,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:47,129 INFO L276 IsEmpty]: Start isEmpty. Operand 13867 states and 15500 transitions. [2024-11-13 12:51:47,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-13 12:51:47,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:47,145 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:47,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 12:51:47,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 12:51:47,349 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:47,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:47,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1106243566, now seen corresponding path program 1 times [2024-11-13 12:51:47,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:47,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559227672] [2024-11-13 12:51:47,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:47,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:48,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 902 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-11-13 12:51:48,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:48,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559227672] [2024-11-13 12:51:48,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559227672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:48,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:48,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:51:48,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293755657] [2024-11-13 12:51:48,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:48,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:51:48,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:48,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:51:48,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:51:48,455 INFO L87 Difference]: Start difference. First operand 13867 states and 15500 transitions. Second operand has 4 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:50,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:50,077 INFO L93 Difference]: Finished difference Result 30691 states and 34303 transitions. [2024-11-13 12:51:50,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:51:50,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 551 [2024-11-13 12:51:50,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:50,104 INFO L225 Difference]: With dead ends: 30691 [2024-11-13 12:51:50,104 INFO L226 Difference]: Without dead ends: 16826 [2024-11-13 12:51:50,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:51:50,116 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 206 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:50,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 156 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 12:51:50,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16826 states. [2024-11-13 12:51:50,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16826 to 13681. [2024-11-13 12:51:50,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13681 states, 13680 states have (on average 1.1176169590643275) internal successors, (15289), 13680 states have internal predecessors, (15289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:50,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13681 states to 13681 states and 15289 transitions. [2024-11-13 12:51:50,330 INFO L78 Accepts]: Start accepts. Automaton has 13681 states and 15289 transitions. Word has length 551 [2024-11-13 12:51:50,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:50,331 INFO L471 AbstractCegarLoop]: Abstraction has 13681 states and 15289 transitions. [2024-11-13 12:51:50,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:50,331 INFO L276 IsEmpty]: Start isEmpty. Operand 13681 states and 15289 transitions. [2024-11-13 12:51:50,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2024-11-13 12:51:50,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:50,385 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:50,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 12:51:50,386 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:50,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:50,386 INFO L85 PathProgramCache]: Analyzing trace with hash 474977120, now seen corresponding path program 1 times [2024-11-13 12:51:50,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:50,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936051838] [2024-11-13 12:51:50,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:50,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:50,944 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 834 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-13 12:51:50,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:50,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936051838] [2024-11-13 12:51:50,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936051838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:50,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:50,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:51:50,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646475861] [2024-11-13 12:51:50,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:50,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:51:50,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:50,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:51:50,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:51:50,947 INFO L87 Difference]: Start difference. First operand 13681 states and 15289 transitions. Second operand has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:52,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:52,536 INFO L93 Difference]: Finished difference Result 32710 states and 36531 transitions. [2024-11-13 12:51:52,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:51:52,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 581 [2024-11-13 12:51:52,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:52,581 INFO L225 Difference]: With dead ends: 32710 [2024-11-13 12:51:52,581 INFO L226 Difference]: Without dead ends: 19031 [2024-11-13 12:51:52,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:51:52,591 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 157 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:52,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 59 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 12:51:52,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19031 states. [2024-11-13 12:51:52,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19031 to 15333. [2024-11-13 12:51:52,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15333 states, 15332 states have (on average 1.1081398382468042) internal successors, (16990), 15332 states have internal predecessors, (16990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:52,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15333 states to 15333 states and 16990 transitions. [2024-11-13 12:51:52,930 INFO L78 Accepts]: Start accepts. Automaton has 15333 states and 16990 transitions. Word has length 581 [2024-11-13 12:51:52,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:52,931 INFO L471 AbstractCegarLoop]: Abstraction has 15333 states and 16990 transitions. [2024-11-13 12:51:52,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:52,931 INFO L276 IsEmpty]: Start isEmpty. Operand 15333 states and 16990 transitions. [2024-11-13 12:51:52,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2024-11-13 12:51:52,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:52,958 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:52,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 12:51:52,958 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:52,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:52,959 INFO L85 PathProgramCache]: Analyzing trace with hash -760752061, now seen corresponding path program 1 times [2024-11-13 12:51:52,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:52,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169645137] [2024-11-13 12:51:52,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:52,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:53,502 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 702 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-13 12:51:53,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:53,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169645137] [2024-11-13 12:51:53,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169645137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:53,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:53,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:53,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747845155] [2024-11-13 12:51:53,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:53,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:51:53,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:53,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:51:53,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:51:53,504 INFO L87 Difference]: Start difference. First operand 15333 states and 16990 transitions. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:54,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:54,925 INFO L93 Difference]: Finished difference Result 39329 states and 43397 transitions. [2024-11-13 12:51:54,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:51:54,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 599 [2024-11-13 12:51:54,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:54,951 INFO L225 Difference]: With dead ends: 39329 [2024-11-13 12:51:54,951 INFO L226 Difference]: Without dead ends: 23998 [2024-11-13 12:51:54,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:51:54,961 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 160 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:54,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 67 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 12:51:54,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23998 states. [2024-11-13 12:51:55,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23998 to 22519. [2024-11-13 12:51:55,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22519 states, 22518 states have (on average 1.10134114930278) internal successors, (24800), 22518 states have internal predecessors, (24800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:55,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22519 states to 22519 states and 24800 transitions. [2024-11-13 12:51:55,258 INFO L78 Accepts]: Start accepts. Automaton has 22519 states and 24800 transitions. Word has length 599 [2024-11-13 12:51:55,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:55,259 INFO L471 AbstractCegarLoop]: Abstraction has 22519 states and 24800 transitions. [2024-11-13 12:51:55,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:55,259 INFO L276 IsEmpty]: Start isEmpty. Operand 22519 states and 24800 transitions. [2024-11-13 12:51:55,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2024-11-13 12:51:55,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:55,279 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:55,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 12:51:55,280 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:55,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:55,281 INFO L85 PathProgramCache]: Analyzing trace with hash -487901272, now seen corresponding path program 1 times [2024-11-13 12:51:55,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:55,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178357142] [2024-11-13 12:51:55,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:55,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:55,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 647 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2024-11-13 12:51:55,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:55,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178357142] [2024-11-13 12:51:55,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178357142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:55,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:55,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:55,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951224712] [2024-11-13 12:51:55,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:55,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:55,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:55,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:55,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:55,656 INFO L87 Difference]: Start difference. First operand 22519 states and 24800 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:56,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:56,706 INFO L93 Difference]: Finished difference Result 45032 states and 49618 transitions. [2024-11-13 12:51:56,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:56,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 650 [2024-11-13 12:51:56,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:56,732 INFO L225 Difference]: With dead ends: 45032 [2024-11-13 12:51:56,732 INFO L226 Difference]: Without dead ends: 25095 [2024-11-13 12:51:56,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:56,740 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 145 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:56,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 113 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 12:51:56,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25095 states. [2024-11-13 12:51:56,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25095 to 22887. [2024-11-13 12:51:57,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22887 states, 22886 states have (on average 1.097876431005855) internal successors, (25126), 22886 states have internal predecessors, (25126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:57,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22887 states to 22887 states and 25126 transitions. [2024-11-13 12:51:57,041 INFO L78 Accepts]: Start accepts. Automaton has 22887 states and 25126 transitions. Word has length 650 [2024-11-13 12:51:57,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:57,042 INFO L471 AbstractCegarLoop]: Abstraction has 22887 states and 25126 transitions. [2024-11-13 12:51:57,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:57,042 INFO L276 IsEmpty]: Start isEmpty. Operand 22887 states and 25126 transitions. [2024-11-13 12:51:57,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2024-11-13 12:51:57,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:57,063 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:57,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 12:51:57,064 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:57,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:57,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1483113893, now seen corresponding path program 1 times [2024-11-13 12:51:57,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:57,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871269406] [2024-11-13 12:51:57,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:57,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:57,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 647 proven. 0 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2024-11-13 12:51:57,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:57,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871269406] [2024-11-13 12:51:57,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871269406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:57,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:57,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:57,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145909196] [2024-11-13 12:51:57,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:57,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:57,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:57,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:57,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:57,479 INFO L87 Difference]: Start difference. First operand 22887 states and 25126 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:58,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:51:58,448 INFO L93 Difference]: Finished difference Result 47243 states and 51839 transitions. [2024-11-13 12:51:58,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:51:58,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 683 [2024-11-13 12:51:58,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:51:58,471 INFO L225 Difference]: With dead ends: 47243 [2024-11-13 12:51:58,471 INFO L226 Difference]: Without dead ends: 24726 [2024-11-13 12:51:58,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:58,480 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 115 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:51:58,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 137 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 12:51:58,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24726 states. [2024-11-13 12:51:58,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24726 to 22327. [2024-11-13 12:51:58,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22327 states, 22326 states have (on average 1.0942846904953865) internal successors, (24431), 22326 states have internal predecessors, (24431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:58,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22327 states to 22327 states and 24431 transitions. [2024-11-13 12:51:58,721 INFO L78 Accepts]: Start accepts. Automaton has 22327 states and 24431 transitions. Word has length 683 [2024-11-13 12:51:58,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:51:58,722 INFO L471 AbstractCegarLoop]: Abstraction has 22327 states and 24431 transitions. [2024-11-13 12:51:58,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:51:58,722 INFO L276 IsEmpty]: Start isEmpty. Operand 22327 states and 24431 transitions. [2024-11-13 12:51:58,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2024-11-13 12:51:58,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:51:58,744 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:58,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 12:51:58,744 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:51:58,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:58,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1406869167, now seen corresponding path program 1 times [2024-11-13 12:51:58,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:58,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737862176] [2024-11-13 12:51:58,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:58,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1777 backedges. 1159 proven. 0 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2024-11-13 12:51:59,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:59,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737862176] [2024-11-13 12:51:59,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737862176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:59,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:59,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:51:59,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816130284] [2024-11-13 12:51:59,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:59,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:51:59,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:59,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:51:59,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:51:59,224 INFO L87 Difference]: Start difference. First operand 22327 states and 24431 transitions. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:00,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:00,169 INFO L93 Difference]: Finished difference Result 43363 states and 47434 transitions. [2024-11-13 12:52:00,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:00,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 732 [2024-11-13 12:52:00,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:00,171 INFO L225 Difference]: With dead ends: 43363 [2024-11-13 12:52:00,171 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 12:52:00,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:00,182 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 46 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:00,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 338 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 12:52:00,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 12:52:00,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 12:52:00,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:00,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 12:52:00,184 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 732 [2024-11-13 12:52:00,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:00,184 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 12:52:00,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:00,184 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 12:52:00,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 12:52:00,187 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 12:52:00,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 12:52:00,191 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:00,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 12:52:06,857 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 12:52:06,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 12:52:06 BoogieIcfgContainer [2024-11-13 12:52:06,878 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 12:52:06,878 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 12:52:06,878 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 12:52:06,879 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 12:52:06,879 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:51:18" (3/4) ... [2024-11-13 12:52:06,882 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 12:52:06,911 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-13 12:52:06,919 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 12:52:06,920 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 12:52:06,921 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 12:52:07,127 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 12:52:07,128 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 12:52:07,128 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 12:52:07,129 INFO L158 Benchmark]: Toolchain (without parser) took 52803.78ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 91.3MB in the beginning and 597.7MB in the end (delta: -506.4MB). Peak memory consumption was 601.8MB. Max. memory is 16.1GB. [2024-11-13 12:52:07,130 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:52:07,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 851.26ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 48.9MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 12:52:07,131 INFO L158 Benchmark]: Boogie Procedure Inliner took 185.39ms. Allocated memory is still 117.4MB. Free memory was 48.9MB in the beginning and 79.7MB in the end (delta: -30.8MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2024-11-13 12:52:07,132 INFO L158 Benchmark]: Boogie Preprocessor took 150.04ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 55.0MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 12:52:07,132 INFO L158 Benchmark]: RCFGBuilder took 2695.57ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 55.0MB in the beginning and 161.2MB in the end (delta: -106.2MB). Peak memory consumption was 134.0MB. Max. memory is 16.1GB. [2024-11-13 12:52:07,134 INFO L158 Benchmark]: TraceAbstraction took 48661.74ms. Allocated memory was 352.3MB in the beginning and 1.2GB in the end (delta: 872.4MB). Free memory was 160.6MB in the beginning and 614.3MB in the end (delta: -453.7MB). Peak memory consumption was 625.1MB. Max. memory is 16.1GB. [2024-11-13 12:52:07,134 INFO L158 Benchmark]: Witness Printer took 249.89ms. Allocated memory is still 1.2GB. Free memory was 614.3MB in the beginning and 597.7MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 12:52:07,139 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 851.26ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 48.9MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 185.39ms. Allocated memory is still 117.4MB. Free memory was 48.9MB in the beginning and 79.7MB in the end (delta: -30.8MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 150.04ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 55.0MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2695.57ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 55.0MB in the beginning and 161.2MB in the end (delta: -106.2MB). Peak memory consumption was 134.0MB. Max. memory is 16.1GB. * TraceAbstraction took 48661.74ms. Allocated memory was 352.3MB in the beginning and 1.2GB in the end (delta: 872.4MB). Free memory was 160.6MB in the beginning and 614.3MB in the end (delta: -453.7MB). Peak memory consumption was 625.1MB. Max. memory is 16.1GB. * Witness Printer took 249.89ms. Allocated memory is still 1.2GB. Free memory was 614.3MB in the beginning and 597.7MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 205]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.9s, OverallIterations: 20, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 24.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2863 SdHoareTripleChecker+Valid, 21.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2863 mSDsluCounter, 3891 SdHoareTripleChecker+Invalid, 18.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 466 mSDsCounter, 2002 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12642 IncrementalHoareTripleChecker+Invalid, 14644 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2002 mSolverCounterUnsat, 3425 mSDtfsCounter, 12642 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 844 GetRequests, 813 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22887occurred in iteration=18, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 16859 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 9013 NumberOfCodeBlocks, 9013 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 8991 ConstructedInterpolants, 0 QuantifiedInterpolants, 19855 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1057 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 22 InterpolantComputations, 20 PerfectInterpolantSequences, 13232/13734 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((a25 == 11) && (a8 <= 15)) && (a4 == 1)) && (246 <= a29)) && (0 <= ((long long) a23 + 42))) || (((((((long long) a23 + 43) <= 0) && (a25 == 12)) && (a8 <= 15)) && (a29 <= 220)) && (a4 == 1))) || (((((a25 == 11) && (a29 <= 274)) && (a8 <= 15)) && (a4 == 1)) && (246 <= a29))) || ((((((a29 <= 140) && (a4 == 0)) && (a25 <= 10)) && (a8 <= 15)) && (a23 <= 312)) && (0 <= ((long long) a23 + 42)))) || (((((139 <= a23) && (a8 <= 15)) && (a29 <= 599998)) && (a4 == 1)) && (a23 <= 312))) || ((((a4 == 0) && (((long long) a29 + 22) <= 0)) && (a8 <= 15)) && (a25 == 10))) || (((((a4 == 0) && (((long long) a29 + 22) <= 0)) && (a8 <= 15)) && (a23 <= 312)) && (13 <= a25))) || ((((a25 == 12) && (a8 <= 15)) && (((long long) 28470 + a29) <= 0)) && (a4 == 1))) || ((((a25 == 12) && (a4 == 0)) && (a8 <= 15)) && (a29 <= 599998))) || (((((a29 <= 140) && (a4 == 0)) && (a25 == 11)) && (a8 <= 15)) && (a23 <= 312))) || (((((a25 == 12) && (139 <= a23)) && (a8 <= 15)) && (a4 == 1)) && (a23 <= 312))) || ((((((a4 == 0) && (a25 == 11)) && (a8 <= 15)) && (a29 <= 599998)) && (a23 <= 312)) && (246 <= a29))) || (((a25 <= 10) && (a8 <= 15)) && (a4 == 1))) || (((((a25 == 12) && (a8 <= 15)) && (a4 == 1)) && (312 <= a23)) && (a29 <= 231))) || (((((a8 <= 15) && (a29 <= 599998)) && (a4 == 1)) && (312 <= a23)) && (246 <= a29))) || ((((((((long long) a23 + 43) <= 0) && (a4 == 0)) && (a25 <= 10)) && (a8 <= 15)) && (a29 <= 599998)) && (246 <= a29))) || ((((a8 <= 15) && (a29 <= 220)) && (a4 == 1)) && (312 <= a23))) || ((((((long long) a23 + 43) <= 0) && (a4 == 0)) && (a8 <= 15)) && (((long long) 28470 + a29) <= 0))) || ((((a29 <= 274) && (a8 <= 15)) && (a4 == 1)) && (13 <= a25))) RESULT: Ultimate proved your program to be correct! [2024-11-13 12:52:07,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8675cc74-ddca-47d9-8565-bb93f22012d3/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE