./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label51.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_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/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_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label51.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/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_082b6470-b340-4cd2-a630-a346c4cee987/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 b9188b0bb7d345bde8858a6e4085c80a345a783efac7d50b39494fde4a7e156f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:32:45,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:32:45,750 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:32:45,761 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:32:45,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:32:45,804 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:32:45,805 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:32:45,805 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:32:45,806 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:32:45,806 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:32:45,808 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:32:45,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:32:45,808 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:32:45,808 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:32:45,809 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:32:45,809 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:32:45,809 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:32:45,809 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:32:45,809 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:32:45,809 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:32:45,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:32:45,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:32:45,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:32:45,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:32:45,810 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:32:45,810 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:32:45,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:32:45,810 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:32:45,810 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:32:45,810 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:32:45,811 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:32:45,811 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:32:45,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:32:45,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:32:45,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:32:45,811 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:32:45,811 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:32:45,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:32:45,811 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:32:45,812 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:32:45,812 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:32:45,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:32:45,813 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_082b6470-b340-4cd2-a630-a346c4cee987/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 -> b9188b0bb7d345bde8858a6e4085c80a345a783efac7d50b39494fde4a7e156f [2024-11-13 15:32:46,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:32:46,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:32:46,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:32:46,222 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:32:46,222 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:32:46,224 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem14_label51.c Unable to find full path for "g++" [2024-11-13 15:32:48,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:32:49,193 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:32:49,194 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2024-11-13 15:32:49,215 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/data/69da327e4/8e0d26d19d724a07aecec4454c31a431/FLAG31a68ecc2 [2024-11-13 15:32:49,240 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/data/69da327e4/8e0d26d19d724a07aecec4454c31a431 [2024-11-13 15:32:49,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:32:49,245 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:32:49,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:32:49,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:32:49,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:32:49,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:32:49" (1/1) ... [2024-11-13 15:32:49,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72fd2ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:49, skipping insertion in model container [2024-11-13 15:32:49,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:32:49" (1/1) ... [2024-11-13 15:32:49,322 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:32:49,578 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_082b6470-b340-4cd2-a630-a346c4cee987/sv-benchmarks/c/eca-rers2012/Problem14_label51.c[3722,3735] [2024-11-13 15:32:49,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:32:49,869 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:32:49,900 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_082b6470-b340-4cd2-a630-a346c4cee987/sv-benchmarks/c/eca-rers2012/Problem14_label51.c[3722,3735] [2024-11-13 15:32:50,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:32:50,054 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:32:50,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:50 WrapperNode [2024-11-13 15:32:50,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:32:50,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:32:50,056 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:32:50,056 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:32:50,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:50" (1/1) ... [2024-11-13 15:32:50,092 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:50" (1/1) ... [2024-11-13 15:32:50,184 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2024-11-13 15:32:50,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:32:50,185 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:32:50,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:32:50,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:32:50,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:50" (1/1) ... [2024-11-13 15:32:50,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:50" (1/1) ... [2024-11-13 15:32:50,201 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:50" (1/1) ... [2024-11-13 15:32:50,232 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 15:32:50,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:50" (1/1) ... [2024-11-13 15:32:50,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:50" (1/1) ... [2024-11-13 15:32:50,265 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:50" (1/1) ... [2024-11-13 15:32:50,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:50" (1/1) ... [2024-11-13 15:32:50,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:50" (1/1) ... [2024-11-13 15:32:50,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:50" (1/1) ... [2024-11-13 15:32:50,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:32:50,320 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:32:50,321 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:32:50,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:32:50,322 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:50" (1/1) ... [2024-11-13 15:32:50,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:32:50,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:32:50,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:32:50,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:32:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:32:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:32:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:32:50,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:32:50,540 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:32:50,542 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:32:52,584 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-13 15:32:52,584 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:32:52,616 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:32:52,616 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:32:52,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:32:52 BoogieIcfgContainer [2024-11-13 15:32:52,617 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:32:52,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:32:52,622 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:32:52,629 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:32:52,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:32:49" (1/3) ... [2024-11-13 15:32:52,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658a0769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:32:52, skipping insertion in model container [2024-11-13 15:32:52,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:32:50" (2/3) ... [2024-11-13 15:32:52,631 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658a0769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:32:52, skipping insertion in model container [2024-11-13 15:32:52,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:32:52" (3/3) ... [2024-11-13 15:32:52,633 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label51.c [2024-11-13 15:32:52,654 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:32:52,657 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem14_label51.c that has 1 procedures, 245 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:32:52,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:32:52,785 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;@5aa598ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:32:52,786 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:32:52,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 15:32:52,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 15:32:52,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:32:52,807 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] [2024-11-13 15:32:52,808 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:32:52,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:32:52,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1946088576, now seen corresponding path program 1 times [2024-11-13 15:32:52,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:32:52,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505234951] [2024-11-13 15:32:52,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:32:52,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:32:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:32:53,271 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 15:32:53,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:32:53,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505234951] [2024-11-13 15:32:53,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505234951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:32:53,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:32:53,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:32:53,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682266434] [2024-11-13 15:32:53,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:32:53,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:32:53,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:32:53,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:32:53,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:32:53,321 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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 15:32:55,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:32:55,095 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2024-11-13 15:32:55,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:32:55,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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 35 [2024-11-13 15:32:55,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:32:55,116 INFO L225 Difference]: With dead ends: 685 [2024-11-13 15:32:55,116 INFO L226 Difference]: Without dead ends: 360 [2024-11-13 15:32:55,121 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 15:32:55,124 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 183 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:32:55,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 139 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 15:32:55,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-13 15:32:55,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2024-11-13 15:32:55,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.4206128133704736) internal successors, (510), 359 states have internal predecessors, (510), 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 15:32:55,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2024-11-13 15:32:55,190 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 35 [2024-11-13 15:32:55,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:32:55,190 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2024-11-13 15:32:55,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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 15:32:55,191 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2024-11-13 15:32:55,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 15:32:55,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:32:55,195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:55,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:32:55,195 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:32:55,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:32:55,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1635229617, now seen corresponding path program 1 times [2024-11-13 15:32:55,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:32:55,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754327261] [2024-11-13 15:32:55,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:32:55,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:32:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:32:56,128 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:32:56,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:32:56,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754327261] [2024-11-13 15:32:56,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754327261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:32:56,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:32:56,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:32:56,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594466309] [2024-11-13 15:32:56,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:32:56,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:32:56,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:32:56,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:32:56,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:32:56,134 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 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 15:32:57,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:32:57,774 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2024-11-13 15:32:57,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:32:57,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 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 114 [2024-11-13 15:32:57,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:32:57,781 INFO L225 Difference]: With dead ends: 1074 [2024-11-13 15:32:57,781 INFO L226 Difference]: Without dead ends: 716 [2024-11-13 15:32:57,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:32:57,787 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 419 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:32:57,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 121 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 15:32:57,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-13 15:32:57,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2024-11-13 15:32:57,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.2615384615384615) internal successors, (902), 715 states have internal predecessors, (902), 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 15:32:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2024-11-13 15:32:57,861 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 114 [2024-11-13 15:32:57,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:32:57,861 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2024-11-13 15:32:57,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 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 15:32:57,862 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2024-11-13 15:32:57,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:32:57,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:32:57,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:57,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:32:57,870 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:32:57,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:32:57,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1342605616, now seen corresponding path program 1 times [2024-11-13 15:32:57,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:32:57,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909547470] [2024-11-13 15:32:57,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:32:57,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:32:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:32:58,392 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 15:32:58,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:32:58,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909547470] [2024-11-13 15:32:58,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909547470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:32:58,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575030843] [2024-11-13 15:32:58,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:32:58,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:32:58,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:32:58,399 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:32:58,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:32:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:32:58,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:32:58,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:32:58,933 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 15:32:58,933 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:32:58,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575030843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:32:58,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:32:58,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-13 15:32:58,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735745456] [2024-11-13 15:32:58,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:32:58,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:32:58,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:32:58,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:32:58,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:32:58,937 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 15:32:59,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:32:59,983 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2024-11-13 15:32:59,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:32:59,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 140 [2024-11-13 15:32:59,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:32:59,992 INFO L225 Difference]: With dead ends: 1252 [2024-11-13 15:32:59,996 INFO L226 Difference]: Without dead ends: 1250 [2024-11-13 15:32:59,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:32:59,998 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 91 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:32:59,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 36 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 15:33:00,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-13 15:33:00,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2024-11-13 15:33:00,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3370660694288914) internal successors, (1194), 893 states have internal predecessors, (1194), 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 15:33:00,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2024-11-13 15:33:00,042 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 140 [2024-11-13 15:33:00,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:00,043 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2024-11-13 15:33:00,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 15:33:00,044 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2024-11-13 15:33:00,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-13 15:33:00,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:00,052 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, 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] [2024-11-13 15:33:00,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:33:00,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:00,258 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:00,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:00,259 INFO L85 PathProgramCache]: Analyzing trace with hash -2139360548, now seen corresponding path program 1 times [2024-11-13 15:33:00,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:00,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123466627] [2024-11-13 15:33:00,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:00,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:00,784 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:33:00,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:00,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123466627] [2024-11-13 15:33:00,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123466627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:00,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:00,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:33:00,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741306107] [2024-11-13 15:33:00,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:00,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:33:00,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:00,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:33:00,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:33:00,791 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 15:33:02,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:02,071 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2024-11-13 15:33:02,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:33:02,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 194 [2024-11-13 15:33:02,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:02,078 INFO L225 Difference]: With dead ends: 1993 [2024-11-13 15:33:02,079 INFO L226 Difference]: Without dead ends: 1072 [2024-11-13 15:33:02,080 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 15:33:02,083 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 102 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:02,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 121 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 15:33:02,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2024-11-13 15:33:02,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2024-11-13 15:33:02,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 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 15:33:02,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2024-11-13 15:33:02,126 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 194 [2024-11-13 15:33:02,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:02,128 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2024-11-13 15:33:02,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 15:33:02,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2024-11-13 15:33:02,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-13 15:33:02,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:02,132 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, 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] [2024-11-13 15:33:02,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:33:02,133 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:02,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:02,133 INFO L85 PathProgramCache]: Analyzing trace with hash -915613792, now seen corresponding path program 1 times [2024-11-13 15:33:02,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:02,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116322490] [2024-11-13 15:33:02,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:02,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:02,786 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 65 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:02,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:02,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116322490] [2024-11-13 15:33:02,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116322490] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:02,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430992310] [2024-11-13 15:33:02,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:02,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:02,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:02,792 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:02,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:33:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:02,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:33:02,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:03,346 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-13 15:33:03,350 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:33:03,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430992310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:03,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:33:03,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-13 15:33:03,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801838130] [2024-11-13 15:33:03,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:03,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:03,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:03,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:03,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:33:03,353 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 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 15:33:04,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:04,256 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2024-11-13 15:33:04,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:04,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 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 206 [2024-11-13 15:33:04,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:04,263 INFO L225 Difference]: With dead ends: 2320 [2024-11-13 15:33:04,263 INFO L226 Difference]: Without dead ends: 1250 [2024-11-13 15:33:04,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:33:04,265 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 84 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:04,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 47 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:33:04,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-13 15:33:04,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2024-11-13 15:33:04,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1671335200746966) internal successors, (1250), 1071 states have internal predecessors, (1250), 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 15:33:04,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2024-11-13 15:33:04,299 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 206 [2024-11-13 15:33:04,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:04,300 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2024-11-13 15:33:04,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 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 15:33:04,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2024-11-13 15:33:04,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-13 15:33:04,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:04,304 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, 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] [2024-11-13 15:33:04,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:33:04,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:04,505 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:04,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:04,505 INFO L85 PathProgramCache]: Analyzing trace with hash -2044782682, now seen corresponding path program 1 times [2024-11-13 15:33:04,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:04,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724326167] [2024-11-13 15:33:04,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:04,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:04,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:04,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724326167] [2024-11-13 15:33:04,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724326167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:04,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:04,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:33:04,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673085400] [2024-11-13 15:33:04,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:04,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:04,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:04,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:04,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:33:04,914 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 15:33:05,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:05,864 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2024-11-13 15:33:05,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:05,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 209 [2024-11-13 15:33:05,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:05,873 INFO L225 Difference]: With dead ends: 2854 [2024-11-13 15:33:05,873 INFO L226 Difference]: Without dead ends: 1784 [2024-11-13 15:33:05,875 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 15:33:05,876 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:05,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 77 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:33:05,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2024-11-13 15:33:05,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2024-11-13 15:33:05,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1364485981308412) internal successors, (1824), 1605 states have internal predecessors, (1824), 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 15:33:05,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1824 transitions. [2024-11-13 15:33:05,929 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1824 transitions. Word has length 209 [2024-11-13 15:33:05,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:05,930 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 1824 transitions. [2024-11-13 15:33:05,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 15:33:05,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1824 transitions. [2024-11-13 15:33:05,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-13 15:33:05,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:05,936 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:05,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:33:05,937 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:05,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:05,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1360953425, now seen corresponding path program 1 times [2024-11-13 15:33:05,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:05,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151855912] [2024-11-13 15:33:05,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:05,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2024-11-13 15:33:06,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:06,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151855912] [2024-11-13 15:33:06,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151855912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:06,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:06,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:33:06,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747708264] [2024-11-13 15:33:06,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:06,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:33:06,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:06,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:33:06,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:33:06,467 INFO L87 Difference]: Start difference. First operand 1606 states and 1824 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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 15:33:07,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:07,457 INFO L93 Difference]: Finished difference Result 3268 states and 3727 transitions. [2024-11-13 15:33:07,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:33:07,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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 326 [2024-11-13 15:33:07,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:07,465 INFO L225 Difference]: With dead ends: 3268 [2024-11-13 15:33:07,465 INFO L226 Difference]: Without dead ends: 1784 [2024-11-13 15:33:07,468 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 15:33:07,468 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 141 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:07,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 17 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:33:07,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2024-11-13 15:33:07,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2024-11-13 15:33:07,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.0909657320872275) internal successors, (1751), 1605 states have internal predecessors, (1751), 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 15:33:07,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1751 transitions. [2024-11-13 15:33:07,548 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1751 transitions. Word has length 326 [2024-11-13 15:33:07,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:07,549 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 1751 transitions. [2024-11-13 15:33:07,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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 15:33:07,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1751 transitions. [2024-11-13 15:33:07,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-13 15:33:07,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:07,563 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, 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, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:07,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:33:07,563 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:07,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:07,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1817071654, now seen corresponding path program 1 times [2024-11-13 15:33:07,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:07,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849962231] [2024-11-13 15:33:07,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:07,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:08,284 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-13 15:33:08,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:08,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849962231] [2024-11-13 15:33:08,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849962231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:08,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:08,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:33:08,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513191263] [2024-11-13 15:33:08,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:08,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:08,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:08,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:08,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:33:08,288 INFO L87 Difference]: Start difference. First operand 1606 states and 1751 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 15:33:09,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:09,190 INFO L93 Difference]: Finished difference Result 3922 states and 4309 transitions. [2024-11-13 15:33:09,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:09,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 421 [2024-11-13 15:33:09,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:09,200 INFO L225 Difference]: With dead ends: 3922 [2024-11-13 15:33:09,201 INFO L226 Difference]: Without dead ends: 2496 [2024-11-13 15:33:09,203 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 15:33:09,203 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:09,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:33:09,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2024-11-13 15:33:09,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1962. [2024-11-13 15:33:09,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.075981642019378) internal successors, (2110), 1961 states have internal predecessors, (2110), 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 15:33:09,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2110 transitions. [2024-11-13 15:33:09,264 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2110 transitions. Word has length 421 [2024-11-13 15:33:09,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:09,265 INFO L471 AbstractCegarLoop]: Abstraction has 1962 states and 2110 transitions. [2024-11-13 15:33:09,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 15:33:09,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2110 transitions. [2024-11-13 15:33:09,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-13 15:33:09,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:09,275 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:09,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:33:09,275 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:09,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:09,276 INFO L85 PathProgramCache]: Analyzing trace with hash -335955922, now seen corresponding path program 1 times [2024-11-13 15:33:09,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:09,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132679920] [2024-11-13 15:33:09,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:09,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:09,878 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-13 15:33:09,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:09,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132679920] [2024-11-13 15:33:09,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132679920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:09,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:09,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:33:09,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699087922] [2024-11-13 15:33:09,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:09,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:09,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:09,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:09,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:33:09,881 INFO L87 Difference]: Start difference. First operand 1962 states and 2110 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 15:33:10,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:10,827 INFO L93 Difference]: Finished difference Result 4456 states and 4861 transitions. [2024-11-13 15:33:10,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:10,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 428 [2024-11-13 15:33:10,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:10,840 INFO L225 Difference]: With dead ends: 4456 [2024-11-13 15:33:10,840 INFO L226 Difference]: Without dead ends: 2674 [2024-11-13 15:33:10,843 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 15:33:10,845 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:10,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 202 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:33:10,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2024-11-13 15:33:10,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2024-11-13 15:33:10,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0819304152637486) internal successors, (2892), 2673 states have internal predecessors, (2892), 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 15:33:10,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2892 transitions. [2024-11-13 15:33:10,949 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2892 transitions. Word has length 428 [2024-11-13 15:33:10,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:10,951 INFO L471 AbstractCegarLoop]: Abstraction has 2674 states and 2892 transitions. [2024-11-13 15:33:10,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 15:33:10,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2892 transitions. [2024-11-13 15:33:10,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-13 15:33:10,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:10,965 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:10,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:33:10,965 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:10,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:10,966 INFO L85 PathProgramCache]: Analyzing trace with hash 207174598, now seen corresponding path program 1 times [2024-11-13 15:33:10,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:10,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355397042] [2024-11-13 15:33:10,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:10,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:11,403 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-13 15:33:11,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:11,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355397042] [2024-11-13 15:33:11,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355397042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:11,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:11,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:33:11,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659152052] [2024-11-13 15:33:11,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:11,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:11,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:11,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:11,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:33:11,407 INFO L87 Difference]: Start difference. First operand 2674 states and 2892 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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 15:33:12,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:12,321 INFO L93 Difference]: Finished difference Result 6414 states and 7027 transitions. [2024-11-13 15:33:12,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:12,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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 469 [2024-11-13 15:33:12,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:12,356 INFO L225 Difference]: With dead ends: 6414 [2024-11-13 15:33:12,360 INFO L226 Difference]: Without dead ends: 3920 [2024-11-13 15:33:12,365 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 15:33:12,369 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:12,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 52 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:33:12,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2024-11-13 15:33:12,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2024-11-13 15:33:12,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.077743474600056) internal successors, (3840), 3563 states have internal predecessors, (3840), 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 15:33:12,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3840 transitions. [2024-11-13 15:33:12,541 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3840 transitions. Word has length 469 [2024-11-13 15:33:12,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:12,542 INFO L471 AbstractCegarLoop]: Abstraction has 3564 states and 3840 transitions. [2024-11-13 15:33:12,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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 15:33:12,542 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3840 transitions. [2024-11-13 15:33:12,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2024-11-13 15:33:12,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:12,562 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, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:12,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:33:12,564 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:12,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:12,564 INFO L85 PathProgramCache]: Analyzing trace with hash -792184267, now seen corresponding path program 1 times [2024-11-13 15:33:12,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:12,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483273079] [2024-11-13 15:33:12,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:12,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:13,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 1034 proven. 104 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-13 15:33:13,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:13,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483273079] [2024-11-13 15:33:13,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483273079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:13,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991241598] [2024-11-13 15:33:13,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:13,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:13,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:13,797 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:13,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:33:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:14,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:33:14,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:14,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2024-11-13 15:33:14,258 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:33:14,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991241598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:14,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:33:14,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-13 15:33:14,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46765178] [2024-11-13 15:33:14,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:14,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:14,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:14,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:14,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:14,261 INFO L87 Difference]: Start difference. First operand 3564 states and 3840 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 15:33:15,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:15,031 INFO L93 Difference]: Finished difference Result 7660 states and 8269 transitions. [2024-11-13 15:33:15,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:15,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 614 [2024-11-13 15:33:15,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:15,046 INFO L225 Difference]: With dead ends: 7660 [2024-11-13 15:33:15,047 INFO L226 Difference]: Without dead ends: 3564 [2024-11-13 15:33:15,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 613 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:15,052 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 146 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:15,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 247 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:33:15,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2024-11-13 15:33:15,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2024-11-13 15:33:15,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0723417524165888) internal successors, (3439), 3207 states have internal predecessors, (3439), 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 15:33:15,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3439 transitions. [2024-11-13 15:33:15,139 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3439 transitions. Word has length 614 [2024-11-13 15:33:15,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:15,140 INFO L471 AbstractCegarLoop]: Abstraction has 3208 states and 3439 transitions. [2024-11-13 15:33:15,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 15:33:15,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3439 transitions. [2024-11-13 15:33:15,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2024-11-13 15:33:15,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:15,147 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:15,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:33:15,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:15,349 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:15,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:15,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1480315117, now seen corresponding path program 1 times [2024-11-13 15:33:15,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:15,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843194178] [2024-11-13 15:33:15,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:15,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:16,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 1089 proven. 104 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-13 15:33:16,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:16,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843194178] [2024-11-13 15:33:16,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843194178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:16,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325191322] [2024-11-13 15:33:16,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:16,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:16,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:16,612 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:16,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:33:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:16,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:33:16,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:17,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2024-11-13 15:33:17,072 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:33:17,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325191322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:17,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:33:17,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-13 15:33:17,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380638113] [2024-11-13 15:33:17,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:17,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:17,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:17,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:17,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:17,075 INFO L87 Difference]: Start difference. First operand 3208 states and 3439 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 15:33:17,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:17,882 INFO L93 Difference]: Finished difference Result 6770 states and 7307 transitions. [2024-11-13 15:33:17,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:17,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 626 [2024-11-13 15:33:17,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:17,896 INFO L225 Difference]: With dead ends: 6770 [2024-11-13 15:33:17,896 INFO L226 Difference]: Without dead ends: 3742 [2024-11-13 15:33:17,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:17,901 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 146 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:17,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 226 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:33:17,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2024-11-13 15:33:17,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3386. [2024-11-13 15:33:17,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.06794682422452) internal successors, (3615), 3385 states have internal predecessors, (3615), 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 15:33:17,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3615 transitions. [2024-11-13 15:33:17,995 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3615 transitions. Word has length 626 [2024-11-13 15:33:17,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:17,996 INFO L471 AbstractCegarLoop]: Abstraction has 3386 states and 3615 transitions. [2024-11-13 15:33:17,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 15:33:17,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3615 transitions. [2024-11-13 15:33:18,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-13 15:33:18,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:18,004 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, 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, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:18,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 15:33:18,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:18,205 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:18,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:18,205 INFO L85 PathProgramCache]: Analyzing trace with hash 455043531, now seen corresponding path program 1 times [2024-11-13 15:33:18,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:18,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420274286] [2024-11-13 15:33:18,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:18,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:19,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 1165 proven. 104 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-13 15:33:19,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:19,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420274286] [2024-11-13 15:33:19,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420274286] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:19,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55860750] [2024-11-13 15:33:19,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:19,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:19,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:19,293 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:19,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:33:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:19,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:33:19,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:20,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 1192 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-13 15:33:20,415 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:33:20,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55860750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:20,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:33:20,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-13 15:33:20,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900705923] [2024-11-13 15:33:20,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:20,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:20,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:20,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:20,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:20,418 INFO L87 Difference]: Start difference. First operand 3386 states and 3615 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 15:33:21,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:21,054 INFO L93 Difference]: Finished difference Result 6770 states and 7232 transitions. [2024-11-13 15:33:21,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:21,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 645 [2024-11-13 15:33:21,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:21,068 INFO L225 Difference]: With dead ends: 6770 [2024-11-13 15:33:21,068 INFO L226 Difference]: Without dead ends: 3386 [2024-11-13 15:33:21,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 644 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:21,075 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 71 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:21,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 233 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:33:21,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2024-11-13 15:33:21,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2024-11-13 15:33:21,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0596750369276218) internal successors, (3587), 3385 states have internal predecessors, (3587), 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 15:33:21,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3587 transitions. [2024-11-13 15:33:21,174 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3587 transitions. Word has length 645 [2024-11-13 15:33:21,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:21,176 INFO L471 AbstractCegarLoop]: Abstraction has 3386 states and 3587 transitions. [2024-11-13 15:33:21,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 15:33:21,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3587 transitions. [2024-11-13 15:33:21,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-13 15:33:21,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:21,186 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 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] [2024-11-13 15:33:21,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 15:33:21,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:21,387 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:21,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:21,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1715940180, now seen corresponding path program 1 times [2024-11-13 15:33:21,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:21,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334265912] [2024-11-13 15:33:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:21,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:22,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 1314 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-13 15:33:22,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:22,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334265912] [2024-11-13 15:33:22,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334265912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:22,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251496281] [2024-11-13 15:33:22,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:22,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:22,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:22,205 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:22,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 15:33:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:22,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:33:22,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:22,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2024-11-13 15:33:22,818 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:33:22,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251496281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:22,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:33:22,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-13 15:33:22,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722977525] [2024-11-13 15:33:22,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:22,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:22,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:22,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:22,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:33:22,826 INFO L87 Difference]: Start difference. First operand 3386 states and 3587 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 15:33:23,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:23,566 INFO L93 Difference]: Finished difference Result 7482 states and 7950 transitions. [2024-11-13 15:33:23,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:23,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 790 [2024-11-13 15:33:23,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:23,590 INFO L225 Difference]: With dead ends: 7482 [2024-11-13 15:33:23,594 INFO L226 Difference]: Without dead ends: 4276 [2024-11-13 15:33:23,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:33:23,602 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 81 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:23,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 26 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:33:23,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2024-11-13 15:33:23,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2024-11-13 15:33:23,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0561386380278253) internal successors, (4327), 4097 states have internal predecessors, (4327), 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 15:33:23,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4327 transitions. [2024-11-13 15:33:23,697 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4327 transitions. Word has length 790 [2024-11-13 15:33:23,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:23,698 INFO L471 AbstractCegarLoop]: Abstraction has 4098 states and 4327 transitions. [2024-11-13 15:33:23,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 15:33:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4327 transitions. [2024-11-13 15:33:23,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2024-11-13 15:33:23,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:23,746 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2024-11-13 15:33:23,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 15:33:23,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 15:33:23,947 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:23,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:23,948 INFO L85 PathProgramCache]: Analyzing trace with hash 952766282, now seen corresponding path program 1 times [2024-11-13 15:33:23,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:23,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715377294] [2024-11-13 15:33:23,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:23,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:24,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1393 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-13 15:33:24,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:24,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715377294] [2024-11-13 15:33:24,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715377294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:24,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374621691] [2024-11-13 15:33:24,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:24,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:24,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:24,896 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:24,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 15:33:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:25,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:33:25,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:25,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1393 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-13 15:33:25,928 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:33:26,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1393 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-13 15:33:26,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374621691] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:33:26,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:33:26,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-13 15:33:26,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198025893] [2024-11-13 15:33:26,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:33:26,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:33:26,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:26,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:33:26,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:33:26,517 INFO L87 Difference]: Start difference. First operand 4098 states and 4327 transitions. Second operand has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 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 15:33:28,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:28,033 INFO L93 Difference]: Finished difference Result 9442 states and 9973 transitions. [2024-11-13 15:33:28,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:33:28,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 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 819 [2024-11-13 15:33:28,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:28,049 INFO L225 Difference]: With dead ends: 9442 [2024-11-13 15:33:28,049 INFO L226 Difference]: Without dead ends: 5524 [2024-11-13 15:33:28,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1640 GetRequests, 1636 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:33:28,054 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 40 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 1251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:28,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 63 Invalid, 1251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 15:33:28,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5524 states. [2024-11-13 15:33:28,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5524 to 4810. [2024-11-13 15:33:28,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0526096901642754) internal successors, (5062), 4809 states have internal predecessors, (5062), 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 15:33:28,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5062 transitions. [2024-11-13 15:33:28,146 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5062 transitions. Word has length 819 [2024-11-13 15:33:28,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:28,147 INFO L471 AbstractCegarLoop]: Abstraction has 4810 states and 5062 transitions. [2024-11-13 15:33:28,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 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 15:33:28,148 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5062 transitions. [2024-11-13 15:33:28,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2024-11-13 15:33:28,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:28,159 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:28,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 15:33:28,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 15:33:28,361 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:28,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:28,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1606271538, now seen corresponding path program 1 times [2024-11-13 15:33:28,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:28,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905838324] [2024-11-13 15:33:28,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:28,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:29,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2484 backedges. 1680 proven. 0 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2024-11-13 15:33:29,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:29,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905838324] [2024-11-13 15:33:29,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905838324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:29,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:29,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:33:29,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923593884] [2024-11-13 15:33:29,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:29,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:29,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:29,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:29,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:33:29,690 INFO L87 Difference]: Start difference. First operand 4810 states and 5062 transitions. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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 15:33:30,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:30,385 INFO L93 Difference]: Finished difference Result 9796 states and 10340 transitions. [2024-11-13 15:33:30,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:30,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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 881 [2024-11-13 15:33:30,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:30,398 INFO L225 Difference]: With dead ends: 9796 [2024-11-13 15:33:30,399 INFO L226 Difference]: Without dead ends: 5166 [2024-11-13 15:33:30,403 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 15:33:30,403 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:30,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 216 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:33:30,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2024-11-13 15:33:30,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5166. [2024-11-13 15:33:30,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.047434656340755) internal successors, (5410), 5165 states have internal predecessors, (5410), 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 15:33:30,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5410 transitions. [2024-11-13 15:33:30,466 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5410 transitions. Word has length 881 [2024-11-13 15:33:30,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:30,467 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 5410 transitions. [2024-11-13 15:33:30,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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 15:33:30,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5410 transitions. [2024-11-13 15:33:30,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2024-11-13 15:33:30,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:30,479 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 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, 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] [2024-11-13 15:33:30,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:33:30,479 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:30,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:30,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1332841253, now seen corresponding path program 1 times [2024-11-13 15:33:30,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:30,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513684803] [2024-11-13 15:33:30,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:30,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:31,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2487 backedges. 1671 proven. 93 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2024-11-13 15:33:31,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:31,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513684803] [2024-11-13 15:33:31,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513684803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:31,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524525308] [2024-11-13 15:33:31,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:31,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:31,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:31,499 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:31,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 15:33:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:31,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:33:31,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:33,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2487 backedges. 802 proven. 0 refuted. 0 times theorem prover too weak. 1685 trivial. 0 not checked. [2024-11-13 15:33:33,014 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:33:33,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524525308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:33,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:33:33,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-13 15:33:33,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961312559] [2024-11-13 15:33:33,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:33,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:33,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:33,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:33,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:33:33,017 INFO L87 Difference]: Start difference. First operand 5166 states and 5410 transitions. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 2 states have internal predecessors, (283), 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 15:33:33,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:33,597 INFO L93 Difference]: Finished difference Result 10330 states and 10828 transitions. [2024-11-13 15:33:33,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:33,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 2 states have internal predecessors, (283), 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 899 [2024-11-13 15:33:33,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:33,611 INFO L225 Difference]: With dead ends: 10330 [2024-11-13 15:33:33,611 INFO L226 Difference]: Without dead ends: 5344 [2024-11-13 15:33:33,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 902 GetRequests, 898 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:33:33,616 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:33,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 38 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:33:33,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2024-11-13 15:33:33,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5344. [2024-11-13 15:33:33,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.047164514317799) internal successors, (5595), 5343 states have internal predecessors, (5595), 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 15:33:33,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5595 transitions. [2024-11-13 15:33:33,687 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5595 transitions. Word has length 899 [2024-11-13 15:33:33,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:33,688 INFO L471 AbstractCegarLoop]: Abstraction has 5344 states and 5595 transitions. [2024-11-13 15:33:33,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 2 states have internal predecessors, (283), 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 15:33:33,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5595 transitions. [2024-11-13 15:33:33,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 924 [2024-11-13 15:33:33,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:33,700 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 4, 4, 3, 3, 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 15:33:33,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-13 15:33:33,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 15:33:33,901 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:33,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:33,902 INFO L85 PathProgramCache]: Analyzing trace with hash -517313986, now seen corresponding path program 1 times [2024-11-13 15:33:33,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:33,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951793416] [2024-11-13 15:33:33,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:33,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:34,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2972 backedges. 1907 proven. 93 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2024-11-13 15:33:34,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:34,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951793416] [2024-11-13 15:33:34,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951793416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:34,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959889893] [2024-11-13 15:33:34,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:34,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:34,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:34,963 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:34,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 15:33:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:35,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:33:35,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:36,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2972 backedges. 2000 proven. 0 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2024-11-13 15:33:36,161 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:33:36,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959889893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:36,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:33:36,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-13 15:33:36,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184084486] [2024-11-13 15:33:36,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:36,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:36,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:36,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:36,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:33:36,164 INFO L87 Difference]: Start difference. First operand 5344 states and 5595 transitions. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 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 15:33:36,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:36,742 INFO L93 Difference]: Finished difference Result 10686 states and 11191 transitions. [2024-11-13 15:33:36,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:36,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 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 923 [2024-11-13 15:33:36,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:36,755 INFO L225 Difference]: With dead ends: 10686 [2024-11-13 15:33:36,755 INFO L226 Difference]: Without dead ends: 5522 [2024-11-13 15:33:36,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 926 GetRequests, 922 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 15:33:36,761 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:36,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 53 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:33:36,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2024-11-13 15:33:36,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5166. [2024-11-13 15:33:36,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0482090997095836) internal successors, (5414), 5165 states have internal predecessors, (5414), 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 15:33:36,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5414 transitions. [2024-11-13 15:33:36,834 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5414 transitions. Word has length 923 [2024-11-13 15:33:36,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:36,835 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 5414 transitions. [2024-11-13 15:33:36,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 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 15:33:36,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5414 transitions. [2024-11-13 15:33:36,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1001 [2024-11-13 15:33:36,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:36,847 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 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, 5, 4, 4, 3, 3, 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, 1] [2024-11-13 15:33:36,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 15:33:37,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 15:33:37,051 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:37,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:37,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1629594936, now seen corresponding path program 1 times [2024-11-13 15:33:37,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:37,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307555296] [2024-11-13 15:33:37,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:37,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:38,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3615 backedges. 1649 proven. 0 refuted. 0 times theorem prover too weak. 1966 trivial. 0 not checked. [2024-11-13 15:33:38,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:38,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307555296] [2024-11-13 15:33:38,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307555296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:38,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:38,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:33:38,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619106532] [2024-11-13 15:33:38,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:38,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:33:38,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:38,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:33:38,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:38,251 INFO L87 Difference]: Start difference. First operand 5166 states and 5414 transitions. Second operand has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 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 15:33:39,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:39,213 INFO L93 Difference]: Finished difference Result 10380 states and 10879 transitions. [2024-11-13 15:33:39,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:33:39,214 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 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 1000 [2024-11-13 15:33:39,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:39,222 INFO L225 Difference]: With dead ends: 10380 [2024-11-13 15:33:39,223 INFO L226 Difference]: Without dead ends: 5344 [2024-11-13 15:33:39,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:33:39,227 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 42 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:39,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 33 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1159 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:33:39,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2024-11-13 15:33:39,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2024-11-13 15:33:39,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0387221684414327) internal successors, (5365), 5165 states have internal predecessors, (5365), 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 15:33:39,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5365 transitions. [2024-11-13 15:33:39,296 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5365 transitions. Word has length 1000 [2024-11-13 15:33:39,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:39,297 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 5365 transitions. [2024-11-13 15:33:39,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 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 15:33:39,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5365 transitions. [2024-11-13 15:33:39,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1028 [2024-11-13 15:33:39,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:39,309 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 6, 5, 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, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:39,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 15:33:39,309 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:39,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:39,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1785101133, now seen corresponding path program 1 times [2024-11-13 15:33:39,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:39,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585731183] [2024-11-13 15:33:39,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:39,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:40,270 INFO L134 CoverageAnalysis]: Checked inductivity of 3025 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 2762 trivial. 0 not checked. [2024-11-13 15:33:40,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:40,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585731183] [2024-11-13 15:33:40,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585731183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:40,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:40,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:33:40,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270696788] [2024-11-13 15:33:40,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:40,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:33:40,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:40,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:33:40,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:33:40,272 INFO L87 Difference]: Start difference. First operand 5166 states and 5365 transitions. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 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 15:33:40,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:40,845 INFO L93 Difference]: Finished difference Result 10172 states and 10565 transitions. [2024-11-13 15:33:40,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:33:40,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 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 1027 [2024-11-13 15:33:40,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:40,852 INFO L225 Difference]: With dead ends: 10172 [2024-11-13 15:33:40,853 INFO L226 Difference]: Without dead ends: 5166 [2024-11-13 15:33:40,857 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 15:33:40,858 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 32 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:40,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 17 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:33:40,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2024-11-13 15:33:40,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4988. [2024-11-13 15:33:40,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0372969721275316) internal successors, (5173), 4987 states have internal predecessors, (5173), 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 15:33:40,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5173 transitions. [2024-11-13 15:33:40,926 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5173 transitions. Word has length 1027 [2024-11-13 15:33:40,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:40,927 INFO L471 AbstractCegarLoop]: Abstraction has 4988 states and 5173 transitions. [2024-11-13 15:33:40,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 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 15:33:40,927 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5173 transitions. [2024-11-13 15:33:40,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1033 [2024-11-13 15:33:40,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:40,939 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 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, 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, 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 15:33:40,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 15:33:40,939 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:40,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:40,940 INFO L85 PathProgramCache]: Analyzing trace with hash -100904823, now seen corresponding path program 1 times [2024-11-13 15:33:40,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:40,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512784313] [2024-11-13 15:33:40,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:40,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2444 proven. 72 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2024-11-13 15:33:42,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:42,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512784313] [2024-11-13 15:33:42,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512784313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:42,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778475373] [2024-11-13 15:33:42,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:42,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:42,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:42,691 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:42,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 15:33:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:43,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 1276 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:33:43,052 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:44,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2453 proven. 616 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-13 15:33:44,151 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:33:45,073 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2516 proven. 0 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2024-11-13 15:33:45,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778475373] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:45,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:33:45,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2024-11-13 15:33:45,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152812458] [2024-11-13 15:33:45,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:45,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:33:45,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:45,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:33:45,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:33:45,077 INFO L87 Difference]: Start difference. First operand 4988 states and 5173 transitions. Second operand has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 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 15:33:45,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:45,840 INFO L93 Difference]: Finished difference Result 10152 states and 10533 transitions. [2024-11-13 15:33:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:33:45,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 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 1032 [2024-11-13 15:33:45,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:45,850 INFO L225 Difference]: With dead ends: 10152 [2024-11-13 15:33:45,850 INFO L226 Difference]: Without dead ends: 5344 [2024-11-13 15:33:45,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2067 GetRequests, 2059 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:33:45,856 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 140 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:45,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 9 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:33:45,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2024-11-13 15:33:45,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4988. [2024-11-13 15:33:45,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0358933226388611) internal successors, (5166), 4987 states have internal predecessors, (5166), 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 15:33:45,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5166 transitions. [2024-11-13 15:33:45,951 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5166 transitions. Word has length 1032 [2024-11-13 15:33:45,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:45,952 INFO L471 AbstractCegarLoop]: Abstraction has 4988 states and 5166 transitions. [2024-11-13 15:33:45,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 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 15:33:45,953 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5166 transitions. [2024-11-13 15:33:45,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1110 [2024-11-13 15:33:45,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:45,978 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:46,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 15:33:46,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:46,179 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:46,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:46,180 INFO L85 PathProgramCache]: Analyzing trace with hash 495308037, now seen corresponding path program 1 times [2024-11-13 15:33:46,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:46,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768166919] [2024-11-13 15:33:46,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:46,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:47,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3817 backedges. 2768 proven. 72 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2024-11-13 15:33:47,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:47,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768166919] [2024-11-13 15:33:47,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768166919] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:47,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891620794] [2024-11-13 15:33:47,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:47,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:47,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:47,820 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:47,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 15:33:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:48,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:33:48,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3817 backedges. 2727 proven. 666 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-13 15:33:49,127 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:33:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3817 backedges. 2840 proven. 0 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2024-11-13 15:33:49,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891620794] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:49,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:33:49,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2024-11-13 15:33:49,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51621308] [2024-11-13 15:33:49,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:49,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:33:49,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:49,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:33:49,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:33:49,765 INFO L87 Difference]: Start difference. First operand 4988 states and 5166 transitions. Second operand has 5 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 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 15:33:50,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:50,312 INFO L93 Difference]: Finished difference Result 10152 states and 10519 transitions. [2024-11-13 15:33:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:33:50,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 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 1109 [2024-11-13 15:33:50,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:50,318 INFO L225 Difference]: With dead ends: 10152 [2024-11-13 15:33:50,318 INFO L226 Difference]: Without dead ends: 5344 [2024-11-13 15:33:50,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2221 GetRequests, 2214 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:33:50,323 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 116 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:50,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 10 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:33:50,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2024-11-13 15:33:50,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2024-11-13 15:33:50,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.034462729912875) internal successors, (5343), 5165 states have internal predecessors, (5343), 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 15:33:50,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5343 transitions. [2024-11-13 15:33:50,380 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5343 transitions. Word has length 1109 [2024-11-13 15:33:50,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:50,381 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 5343 transitions. [2024-11-13 15:33:50,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 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 15:33:50,382 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5343 transitions. [2024-11-13 15:33:50,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2024-11-13 15:33:50,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:50,393 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 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, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:50,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 15:33:50,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:50,594 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:50,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:50,595 INFO L85 PathProgramCache]: Analyzing trace with hash -447155003, now seen corresponding path program 1 times [2024-11-13 15:33:50,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:50,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125435248] [2024-11-13 15:33:50,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:50,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:51,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3851 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 3555 trivial. 0 not checked. [2024-11-13 15:33:51,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:51,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125435248] [2024-11-13 15:33:51,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125435248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:51,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:51,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:33:51,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336303776] [2024-11-13 15:33:51,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:51,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:33:51,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:51,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:33:51,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:33:51,287 INFO L87 Difference]: Start difference. First operand 5166 states and 5343 transitions. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 15:33:51,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:51,734 INFO L93 Difference]: Finished difference Result 10330 states and 10687 transitions. [2024-11-13 15:33:51,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:33:51,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 1141 [2024-11-13 15:33:51,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:51,739 INFO L225 Difference]: With dead ends: 10330 [2024-11-13 15:33:51,739 INFO L226 Difference]: Without dead ends: 5344 [2024-11-13 15:33:51,742 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 15:33:51,742 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 148 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:51,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 207 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:33:51,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2024-11-13 15:33:51,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2024-11-13 15:33:51,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0311713455953533) internal successors, (5326), 5165 states have internal predecessors, (5326), 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 15:33:51,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5326 transitions. [2024-11-13 15:33:51,786 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5326 transitions. Word has length 1141 [2024-11-13 15:33:51,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:51,787 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 5326 transitions. [2024-11-13 15:33:51,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 15:33:51,788 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5326 transitions. [2024-11-13 15:33:51,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1397 [2024-11-13 15:33:51,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:51,806 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:51,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 15:33:51,807 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:51,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:51,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1942559523, now seen corresponding path program 1 times [2024-11-13 15:33:51,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:51,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621077687] [2024-11-13 15:33:51,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:51,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:54,204 INFO L134 CoverageAnalysis]: Checked inductivity of 5969 backedges. 4579 proven. 304 refuted. 0 times theorem prover too weak. 1086 trivial. 0 not checked. [2024-11-13 15:33:54,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:54,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621077687] [2024-11-13 15:33:54,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621077687] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:54,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032234171] [2024-11-13 15:33:54,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:54,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:54,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:54,207 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:54,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 15:33:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:54,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 1684 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:33:54,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:55,608 INFO L134 CoverageAnalysis]: Checked inductivity of 5969 backedges. 4422 proven. 716 refuted. 0 times theorem prover too weak. 831 trivial. 0 not checked. [2024-11-13 15:33:55,608 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:33:56,337 INFO L134 CoverageAnalysis]: Checked inductivity of 5969 backedges. 4585 proven. 0 refuted. 0 times theorem prover too weak. 1384 trivial. 0 not checked. [2024-11-13 15:33:56,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032234171] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:56,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:33:56,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 10 [2024-11-13 15:33:56,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925897122] [2024-11-13 15:33:56,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:56,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:33:56,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:56,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:33:56,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:33:56,341 INFO L87 Difference]: Start difference. First operand 5166 states and 5326 transitions. Second operand has 5 states, 5 states have (on average 147.6) internal successors, (738), 5 states have internal predecessors, (738), 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 15:33:56,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:56,943 INFO L93 Difference]: Finished difference Result 10330 states and 10653 transitions. [2024-11-13 15:33:56,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:33:56,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 147.6) internal successors, (738), 5 states have internal predecessors, (738), 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 1396 [2024-11-13 15:33:56,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:33:56,951 INFO L225 Difference]: With dead ends: 10330 [2024-11-13 15:33:56,951 INFO L226 Difference]: Without dead ends: 5344 [2024-11-13 15:33:56,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2796 GetRequests, 2788 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:33:56,955 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 46 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:33:56,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 10 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:33:56,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2024-11-13 15:33:57,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4988. [2024-11-13 15:33:57,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0312813314618008) internal successors, (5143), 4987 states have internal predecessors, (5143), 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 15:33:57,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5143 transitions. [2024-11-13 15:33:57,022 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5143 transitions. Word has length 1396 [2024-11-13 15:33:57,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:33:57,023 INFO L471 AbstractCegarLoop]: Abstraction has 4988 states and 5143 transitions. [2024-11-13 15:33:57,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.6) internal successors, (738), 5 states have internal predecessors, (738), 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 15:33:57,023 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5143 transitions. [2024-11-13 15:33:57,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1647 [2024-11-13 15:33:57,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:33:57,049 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:57,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 15:33:57,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:57,250 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:33:57,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:57,251 INFO L85 PathProgramCache]: Analyzing trace with hash -695070454, now seen corresponding path program 1 times [2024-11-13 15:33:57,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:57,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240294023] [2024-11-13 15:33:57,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:57,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:00,767 INFO L134 CoverageAnalysis]: Checked inductivity of 8542 backedges. 4927 proven. 0 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2024-11-13 15:34:00,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:00,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240294023] [2024-11-13 15:34:00,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240294023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:00,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:00,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:34:00,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445381722] [2024-11-13 15:34:00,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:00,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:34:00,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:00,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:34:00,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:00,772 INFO L87 Difference]: Start difference. First operand 4988 states and 5143 transitions. Second operand has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 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 15:34:02,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:02,604 INFO L93 Difference]: Finished difference Result 11947 states and 12343 transitions. [2024-11-13 15:34:02,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:34:02,605 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 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 1646 [2024-11-13 15:34:02,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:02,653 INFO L225 Difference]: With dead ends: 11947 [2024-11-13 15:34:02,653 INFO L226 Difference]: Without dead ends: 6768 [2024-11-13 15:34:02,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:02,666 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 184 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:02,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 38 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 15:34:02,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6768 states. [2024-11-13 15:34:02,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6768 to 5522. [2024-11-13 15:34:02,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0240898387973194) internal successors, (5654), 5521 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 15:34:02,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5654 transitions. [2024-11-13 15:34:02,985 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5654 transitions. Word has length 1646 [2024-11-13 15:34:02,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:02,989 INFO L471 AbstractCegarLoop]: Abstraction has 5522 states and 5654 transitions. [2024-11-13 15:34:02,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 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 15:34:02,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5654 transitions. [2024-11-13 15:34:03,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1993 [2024-11-13 15:34:03,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:03,172 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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 15:34:03,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 15:34:03,174 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:03,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:03,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1889997432, now seen corresponding path program 1 times [2024-11-13 15:34:03,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:03,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138042845] [2024-11-13 15:34:03,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:03,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:06,279 INFO L134 CoverageAnalysis]: Checked inductivity of 12716 backedges. 5428 proven. 0 refuted. 0 times theorem prover too weak. 7288 trivial. 0 not checked. [2024-11-13 15:34:06,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:06,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138042845] [2024-11-13 15:34:06,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138042845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:06,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:06,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:34:06,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347117266] [2024-11-13 15:34:06,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:06,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:34:06,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:06,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:34:06,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:34:06,283 INFO L87 Difference]: Start difference. First operand 5522 states and 5654 transitions. Second operand has 4 states, 4 states have (on average 96.5) internal successors, (386), 3 states have internal predecessors, (386), 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 15:34:06,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:06,902 INFO L93 Difference]: Finished difference Result 11064 states and 11328 transitions. [2024-11-13 15:34:06,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:34:06,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 96.5) internal successors, (386), 3 states have internal predecessors, (386), 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 1992 [2024-11-13 15:34:06,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:06,916 INFO L225 Difference]: With dead ends: 11064 [2024-11-13 15:34:06,916 INFO L226 Difference]: Without dead ends: 5522 [2024-11-13 15:34:06,921 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 15:34:06,922 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 23 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:06,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 17 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:34:06,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2024-11-13 15:34:07,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5522. [2024-11-13 15:34:07,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0235464589748233) internal successors, (5651), 5521 states have internal predecessors, (5651), 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 15:34:07,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5651 transitions. [2024-11-13 15:34:07,066 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5651 transitions. Word has length 1992 [2024-11-13 15:34:07,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:07,068 INFO L471 AbstractCegarLoop]: Abstraction has 5522 states and 5651 transitions. [2024-11-13 15:34:07,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.5) internal successors, (386), 3 states have internal predecessors, (386), 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 15:34:07,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5651 transitions. [2024-11-13 15:34:07,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2098 [2024-11-13 15:34:07,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:07,233 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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 15:34:07,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 15:34:07,235 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:07,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:07,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1949159442, now seen corresponding path program 1 times [2024-11-13 15:34:07,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:07,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512213480] [2024-11-13 15:34:07,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:07,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:10,393 INFO L134 CoverageAnalysis]: Checked inductivity of 14246 backedges. 5937 proven. 0 refuted. 0 times theorem prover too weak. 8309 trivial. 0 not checked. [2024-11-13 15:34:10,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:10,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512213480] [2024-11-13 15:34:10,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512213480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:10,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:10,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:34:10,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533506904] [2024-11-13 15:34:10,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:10,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:34:10,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:10,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:34:10,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:10,397 INFO L87 Difference]: Start difference. First operand 5522 states and 5651 transitions. Second operand has 7 states, 7 states have (on average 58.857142857142854) internal successors, (412), 6 states have internal predecessors, (412), 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 15:34:11,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:11,168 INFO L93 Difference]: Finished difference Result 10827 states and 11074 transitions. [2024-11-13 15:34:11,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:34:11,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 58.857142857142854) internal successors, (412), 6 states have internal predecessors, (412), 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 2097 [2024-11-13 15:34:11,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:11,191 INFO L225 Difference]: With dead ends: 10827 [2024-11-13 15:34:11,192 INFO L226 Difference]: Without dead ends: 5166 [2024-11-13 15:34:11,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:11,200 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 20 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:11,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 20 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:34:11,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2024-11-13 15:34:11,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5166. [2024-11-13 15:34:11,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.021103581800581) internal successors, (5274), 5165 states have internal predecessors, (5274), 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 15:34:11,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5274 transitions. [2024-11-13 15:34:11,313 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5274 transitions. Word has length 2097 [2024-11-13 15:34:11,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:11,315 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 5274 transitions. [2024-11-13 15:34:11,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 58.857142857142854) internal successors, (412), 6 states have internal predecessors, (412), 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 15:34:11,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5274 transitions. [2024-11-13 15:34:11,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2104 [2024-11-13 15:34:11,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:11,396 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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 15:34:11,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-13 15:34:11,397 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:11,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:11,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1590811041, now seen corresponding path program 1 times [2024-11-13 15:34:11,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:11,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689937881] [2024-11-13 15:34:11,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:11,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:14,711 INFO L134 CoverageAnalysis]: Checked inductivity of 14324 backedges. 5973 proven. 0 refuted. 0 times theorem prover too weak. 8351 trivial. 0 not checked. [2024-11-13 15:34:14,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:14,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689937881] [2024-11-13 15:34:14,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689937881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:14,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:34:14,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:34:14,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627103649] [2024-11-13 15:34:14,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:14,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:34:14,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:14,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:34:14,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:14,719 INFO L87 Difference]: Start difference. First operand 5166 states and 5274 transitions. Second operand has 7 states, 7 states have (on average 59.714285714285715) internal successors, (418), 6 states have internal predecessors, (418), 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 15:34:15,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:15,678 INFO L93 Difference]: Finished difference Result 10383 states and 10599 transitions. [2024-11-13 15:34:15,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:34:15,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 59.714285714285715) internal successors, (418), 6 states have internal predecessors, (418), 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 2103 [2024-11-13 15:34:15,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:15,688 INFO L225 Difference]: With dead ends: 10383 [2024-11-13 15:34:15,689 INFO L226 Difference]: Without dead ends: 5166 [2024-11-13 15:34:15,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:34:15,696 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 19 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:15,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 33 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:34:15,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2024-11-13 15:34:15,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5166. [2024-11-13 15:34:15,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.020135527589545) internal successors, (5269), 5165 states have internal predecessors, (5269), 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 15:34:15,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5269 transitions. [2024-11-13 15:34:15,821 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5269 transitions. Word has length 2103 [2024-11-13 15:34:15,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:15,822 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 5269 transitions. [2024-11-13 15:34:15,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.714285714285715) internal successors, (418), 6 states have internal predecessors, (418), 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 15:34:15,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5269 transitions. [2024-11-13 15:34:15,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2181 [2024-11-13 15:34:15,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:15,866 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 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, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 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 15:34:15,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-13 15:34:15,867 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:15,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:15,868 INFO L85 PathProgramCache]: Analyzing trace with hash 2044511668, now seen corresponding path program 1 times [2024-11-13 15:34:15,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:15,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134459050] [2024-11-13 15:34:15,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:15,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:19,954 INFO L134 CoverageAnalysis]: Checked inductivity of 14902 backedges. 5328 proven. 974 refuted. 0 times theorem prover too weak. 8600 trivial. 0 not checked. [2024-11-13 15:34:19,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:19,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134459050] [2024-11-13 15:34:19,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134459050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:34:19,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369542441] [2024-11-13 15:34:19,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:19,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:34:19,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:34:19,958 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:34:19,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 15:34:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:20,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 2588 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:34:20,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:34:21,396 INFO L134 CoverageAnalysis]: Checked inductivity of 14902 backedges. 2359 proven. 0 refuted. 0 times theorem prover too weak. 12543 trivial. 0 not checked. [2024-11-13 15:34:21,396 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:34:21,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369542441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:21,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:34:21,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-13 15:34:21,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011868407] [2024-11-13 15:34:21,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:21,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:34:21,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:21,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:34:21,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:34:21,401 INFO L87 Difference]: Start difference. First operand 5166 states and 5269 transitions. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 15:34:22,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:22,106 INFO L93 Difference]: Finished difference Result 10508 states and 10713 transitions. [2024-11-13 15:34:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:34:22,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 2180 [2024-11-13 15:34:22,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:22,152 INFO L225 Difference]: With dead ends: 10508 [2024-11-13 15:34:22,152 INFO L226 Difference]: Without dead ends: 5166 [2024-11-13 15:34:22,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2186 GetRequests, 2179 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:34:22,161 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 51 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:22,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 212 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:34:22,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2024-11-13 15:34:22,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4632. [2024-11-13 15:34:22,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0161952062189592) internal successors, (4706), 4631 states have internal predecessors, (4706), 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 15:34:22,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4706 transitions. [2024-11-13 15:34:22,229 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4706 transitions. Word has length 2180 [2024-11-13 15:34:22,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:22,231 INFO L471 AbstractCegarLoop]: Abstraction has 4632 states and 4706 transitions. [2024-11-13 15:34:22,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 15:34:22,232 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4706 transitions. [2024-11-13 15:34:22,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2191 [2024-11-13 15:34:22,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:34:22,275 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 3, 3, 3, 3, 3, 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 15:34:22,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-13 15:34:22,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-13 15:34:22,476 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:34:22,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:34:22,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1705103571, now seen corresponding path program 1 times [2024-11-13 15:34:22,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:34:22,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898671680] [2024-11-13 15:34:22,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:22,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:34:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:26,692 INFO L134 CoverageAnalysis]: Checked inductivity of 14958 backedges. 5384 proven. 974 refuted. 0 times theorem prover too weak. 8600 trivial. 0 not checked. [2024-11-13 15:34:26,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:34:26,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898671680] [2024-11-13 15:34:26,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898671680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:34:26,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526667161] [2024-11-13 15:34:26,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:34:26,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:34:26,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:34:26,697 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:34:26,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 15:34:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:34:27,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 2598 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:34:27,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:34:27,837 INFO L134 CoverageAnalysis]: Checked inductivity of 14958 backedges. 2382 proven. 0 refuted. 0 times theorem prover too weak. 12576 trivial. 0 not checked. [2024-11-13 15:34:27,837 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:34:27,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526667161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:34:27,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:34:27,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-13 15:34:27,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571546656] [2024-11-13 15:34:27,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:34:27,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:34:27,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:34:27,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:34:27,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:34:27,841 INFO L87 Difference]: Start difference. First operand 4632 states and 4706 transitions. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 15:34:28,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:34:28,485 INFO L93 Difference]: Finished difference Result 9260 states and 9409 transitions. [2024-11-13 15:34:28,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:34:28,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 2190 [2024-11-13 15:34:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:34:28,488 INFO L225 Difference]: With dead ends: 9260 [2024-11-13 15:34:28,488 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 15:34:28,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2196 GetRequests, 2189 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:34:28,496 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 43 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:34:28,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 202 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:34:28,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 15:34:28,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 15:34:28,501 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 15:34:28,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 15:34:28,502 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2190 [2024-11-13 15:34:28,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:34:28,502 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:34:28,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 15:34:28,503 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 15:34:28,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 15:34:28,517 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 15:34:28,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 15:34:28,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:34:28,739 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:34:28,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 15:34:47,818 WARN L286 SmtUtils]: Spent 19.06s on a formula simplification. DAG size of input: 200 DAG size of output: 176 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-13 15:34:48,767 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:34:48,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:34:48 BoogieIcfgContainer [2024-11-13 15:34:48,843 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:34:48,845 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:34:48,848 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:34:48,848 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:34:48,850 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:32:52" (3/4) ... [2024-11-13 15:34:48,859 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 15:34:48,918 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-13 15:34:48,919 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 15:34:48,920 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 15:34:48,926 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 15:34:49,176 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:34:49,177 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 15:34:49,177 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:34:49,178 INFO L158 Benchmark]: Toolchain (without parser) took 119932.75ms. Allocated memory was 142.6MB in the beginning and 268.4MB in the end (delta: 125.8MB). Free memory was 116.4MB in the beginning and 190.0MB in the end (delta: -73.6MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2024-11-13 15:34:49,178 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:34:49,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 808.22ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 84.9MB in the end (delta: 31.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 15:34:49,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.93ms. Allocated memory is still 142.6MB. Free memory was 84.9MB in the beginning and 75.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:34:49,179 INFO L158 Benchmark]: Boogie Preprocessor took 133.87ms. Allocated memory is still 142.6MB. Free memory was 75.3MB in the beginning and 63.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:34:49,180 INFO L158 Benchmark]: RCFGBuilder took 2296.84ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 63.3MB in the beginning and 325.7MB in the end (delta: -262.4MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2024-11-13 15:34:49,180 INFO L158 Benchmark]: TraceAbstraction took 116221.05ms. Allocated memory was 411.0MB in the beginning and 268.4MB in the end (delta: -142.6MB). Free memory was 325.7MB in the beginning and 203.5MB in the end (delta: 122.1MB). Peak memory consumption was 390.9MB. Max. memory is 16.1GB. [2024-11-13 15:34:49,181 INFO L158 Benchmark]: Witness Printer took 332.29ms. Allocated memory is still 268.4MB. Free memory was 203.5MB in the beginning and 190.0MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:34:49,183 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 808.22ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 84.9MB in the end (delta: 31.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 128.93ms. Allocated memory is still 142.6MB. Free memory was 84.9MB in the beginning and 75.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 133.87ms. Allocated memory is still 142.6MB. Free memory was 75.3MB in the beginning and 63.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2296.84ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 63.3MB in the beginning and 325.7MB in the end (delta: -262.4MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * TraceAbstraction took 116221.05ms. Allocated memory was 411.0MB in the beginning and 268.4MB in the end (delta: -142.6MB). Free memory was 325.7MB in the beginning and 203.5MB in the end (delta: 122.1MB). Peak memory consumption was 390.9MB. Max. memory is 16.1GB. * Witness Printer took 332.29ms. Allocated memory is still 268.4MB. Free memory was 203.5MB in the beginning and 190.0MB in the end (delta: 13.6MB). 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: 119]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 96.0s, OverallIterations: 30, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.8s, AutomataDifference: 27.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2814 SdHoareTripleChecker+Valid, 25.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2814 mSDsluCounter, 2967 SdHoareTripleChecker+Invalid, 21.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 229 mSDsCounter, 1312 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18135 IncrementalHoareTripleChecker+Invalid, 19447 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1312 mSolverCounterUnsat, 2738 mSDtfsCounter, 18135 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18035 GetRequests, 17923 SyntacticMatches, 1 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5522occurred in iteration=25, InterpolantAutomatonStates: 116, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 30 MinimizatonAttempts, 6944 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.7s SsaConstructionTime, 5.4s SatisfiabilityAnalysisTime, 50.1s InterpolantComputationTime, 41221 NumberOfCodeBlocks, 41221 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 45529 ConstructedInterpolants, 0 QuantifiedInterpolants, 125357 SizeOfPredicates, 0 NumberOfNonLiveVariables, 16653 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 48 InterpolantComputations, 29 PerfectInterpolantSequences, 189344/194937 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: 890]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((a21 == 8) && (a24 == 1)) && (20 <= a12)) && (a12 <= 76)) && (8 <= a15)) || ((((a24 == 1) && (a15 <= 6)) || ((a15 <= 6) && (((long long) 49 + a12) <= 0))) && (a12 <= 600006))) || ((((a12 <= 11) && (a21 == 8)) && (a24 == 1)) && (a15 <= 8))) || (((((a24 == 1) && (a21 == 9)) && (20 <= a12)) && (a12 <= 76)) && (a15 == 8))) || ((((a21 == 8) && (a24 == 1)) && (a12 <= 600006)) && (81 <= a12))) || (((a21 == 8) && (((long long) a12 + 43) <= 0)) && (a24 == 1))) || (((((a24 == 1) && (a15 <= 8)) && (a21 <= 8)) && (a12 <= 600006)) && (81 <= a12))) || ((((((long long) a12 + 43) <= 0) && (a24 == 1)) && (10 <= a21)) && (8 <= a15))) || (((((long long) a12 + 43) <= 0) && (a24 == 1)) && (a21 == 10))) || (((((a24 == 1) && (a21 == 9)) && (a12 <= 600006)) && (81 <= a12)) && (8 <= a15))) || ((((a24 == 1) && (a15 <= 8)) && (((long long) 49 + a12) <= 0)) && (a21 <= 8))) || (((((a24 == 1) && (a12 <= 600006)) && (10 <= a21)) && (81 <= a12)) && (8 <= a15))) || (((((a12 <= 80) && (a24 == 1)) && (12 <= a12)) && (a21 == 9)) && (7 == a15))) || ((((a24 == 1) && (7 == a21)) && (a12 <= 600006)) && (81 <= a12))) || ((((((long long) a12 + 43) <= 0) && (a24 == 1)) && (7 == a21)) && (a15 <= 8))) || (((((a12 <= 11) && (a24 == 1)) && (a21 == 9)) && (0 <= ((long long) a12 + 42))) && (a15 == 8))) || ((a24 == 1) && (((((20 <= a12) && (a12 <= 600006)) && (10 <= a21)) && (a15 == 8)) || (((a12 <= 11) && (10 <= a21)) && (a15 == 8))))) || (((((a12 <= 11) && (a24 == 1)) && (10 <= a21)) && (8 <= a15)) && (0 <= ((long long) 41 + a12)))) || (((a24 == 1) && (a12 <= 600006)) && (95382 <= a12))) || (((((a24 == 1) && (20 <= a12)) && (a12 <= 600006)) && (a21 == 10)) && (7 == a15))) || (((a21 <= 9) && (a24 == 1)) && (a15 <= 6))) || (((((a12 <= 11) && (a24 == 1)) && (a15 <= 8)) && (a21 <= 8)) && (0 <= ((long long) 41 + a12)))) || ((((a12 <= 11) && (a21 == 8)) && (a24 == 1)) && (0 <= ((long long) 41 + a12)))) RESULT: Ultimate proved your program to be correct! [2024-11-13 15:34:49,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082b6470-b340-4cd2-a630-a346c4cee987/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