./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label45.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_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/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_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label45.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/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_7dadbb23-183e-4927-8ed0-ac038671b025/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 b8e8aa0b516ef9fd60c8444f7020a693e2ee03ee59580de825705d1497a8a117 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:40:51,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:40:51,462 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:40:51,474 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:40:51,474 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:40:51,525 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:40:51,525 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:40:51,525 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:40:51,526 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:40:51,526 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:40:51,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:40:51,526 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:40:51,528 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:40:51,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:40:51,529 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:40:51,529 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:40:51,529 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:40:51,529 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:40:51,529 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:40:51,529 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:40:51,529 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:40:51,530 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:40:51,530 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:40:51,530 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:40:51,530 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:40:51,530 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:40:51,530 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:40:51,530 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:40:51,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:40:51,530 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:40:51,531 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:40:51,531 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:40:51,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:40:51,531 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:40:51,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:40:51,531 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:40:51,531 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:40:51,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:40:51,534 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:40:51,534 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:40:51,534 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:40:51,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:40:51,535 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_7dadbb23-183e-4927-8ed0-ac038671b025/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 -> b8e8aa0b516ef9fd60c8444f7020a693e2ee03ee59580de825705d1497a8a117 [2024-11-13 14:40:51,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:40:51,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:40:51,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:40:51,996 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:40:51,996 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:40:51,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem01_label45.c Unable to find full path for "g++" [2024-11-13 14:40:54,431 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:40:54,853 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:40:54,854 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/sv-benchmarks/c/eca-rers2012/Problem01_label45.c [2024-11-13 14:40:54,871 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/data/627ea0ec2/e336afff9ac742c589048cad230e99e9/FLAG58675e7e3 [2024-11-13 14:40:54,900 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/data/627ea0ec2/e336afff9ac742c589048cad230e99e9 [2024-11-13 14:40:54,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:40:54,912 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:40:54,917 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:40:54,917 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:40:54,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:40:54,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:40:54" (1/1) ... [2024-11-13 14:40:54,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38be4d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:54, skipping insertion in model container [2024-11-13 14:40:54,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:40:54" (1/1) ... [2024-11-13 14:40:54,985 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:40:55,386 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_7dadbb23-183e-4927-8ed0-ac038671b025/sv-benchmarks/c/eca-rers2012/Problem01_label45.c[20099,20112] [2024-11-13 14:40:55,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:40:55,439 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:40:55,583 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_7dadbb23-183e-4927-8ed0-ac038671b025/sv-benchmarks/c/eca-rers2012/Problem01_label45.c[20099,20112] [2024-11-13 14:40:55,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:40:55,619 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:40:55,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:55 WrapperNode [2024-11-13 14:40:55,621 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:40:55,623 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:40:55,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:40:55,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:40:55,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:55" (1/1) ... [2024-11-13 14:40:55,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:55" (1/1) ... [2024-11-13 14:40:55,755 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2024-11-13 14:40:55,755 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:40:55,756 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:40:55,756 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:40:55,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:40:55,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:55" (1/1) ... [2024-11-13 14:40:55,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:55" (1/1) ... [2024-11-13 14:40:55,779 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:55" (1/1) ... [2024-11-13 14:40:55,805 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 14:40:55,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:55" (1/1) ... [2024-11-13 14:40:55,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:55" (1/1) ... [2024-11-13 14:40:55,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:55" (1/1) ... [2024-11-13 14:40:55,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:55" (1/1) ... [2024-11-13 14:40:55,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:55" (1/1) ... [2024-11-13 14:40:55,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:55" (1/1) ... [2024-11-13 14:40:55,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:40:55,903 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:40:55,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:40:55,903 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:40:55,904 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:55" (1/1) ... [2024-11-13 14:40:55,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:40:55,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:40:55,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:40:55,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:40:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:40:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:40:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:40:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:40:56,108 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:40:56,110 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:40:57,846 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-11-13 14:40:57,847 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:40:57,875 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:40:57,878 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:40:57,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:40:57 BoogieIcfgContainer [2024-11-13 14:40:57,879 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:40:57,884 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:40:57,884 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:40:57,889 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:40:57,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:40:54" (1/3) ... [2024-11-13 14:40:57,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7c876e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:40:57, skipping insertion in model container [2024-11-13 14:40:57,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:55" (2/3) ... [2024-11-13 14:40:57,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7c876e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:40:57, skipping insertion in model container [2024-11-13 14:40:57,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:40:57" (3/3) ... [2024-11-13 14:40:57,895 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label45.c [2024-11-13 14:40:57,918 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:40:57,920 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem01_label45.c that has 1 procedures, 198 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:40:58,026 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:40:58,040 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;@3ea07d54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:40:58,041 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:40:58,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 14:40:58,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 14:40:58,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:40:58,071 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:40:58,072 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:40:58,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:40:58,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1508790149, now seen corresponding path program 1 times [2024-11-13 14:40:58,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:40:58,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005897890] [2024-11-13 14:40:58,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:40:58,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:40:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:59,826 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 14:40:59,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:40:59,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005897890] [2024-11-13 14:40:59,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005897890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:40:59,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:40:59,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:40:59,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914200324] [2024-11-13 14:40:59,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:40:59,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:40:59,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:40:59,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:40:59,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:40:59,877 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 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 14:41:01,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:01,776 INFO L93 Difference]: Finished difference Result 662 states and 1178 transitions. [2024-11-13 14:41:01,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:41:01,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 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 117 [2024-11-13 14:41:01,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:01,802 INFO L225 Difference]: With dead ends: 662 [2024-11-13 14:41:01,802 INFO L226 Difference]: Without dead ends: 397 [2024-11-13 14:41:01,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:41:01,809 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 351 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:01,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 77 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 14:41:01,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-13 14:41:01,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-11-13 14:41:01,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 396 states have (on average 1.3055555555555556) internal successors, (517), 396 states have internal predecessors, (517), 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 14:41:01,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 517 transitions. [2024-11-13 14:41:01,876 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 517 transitions. Word has length 117 [2024-11-13 14:41:01,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:01,876 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 517 transitions. [2024-11-13 14:41:01,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 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 14:41:01,877 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 517 transitions. [2024-11-13 14:41:01,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-13 14:41:01,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:01,882 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:01,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:41:01,883 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:01,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:01,884 INFO L85 PathProgramCache]: Analyzing trace with hash -49540589, now seen corresponding path program 1 times [2024-11-13 14:41:01,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:01,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278683014] [2024-11-13 14:41:01,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:01,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:02,606 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:41:02,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:02,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278683014] [2024-11-13 14:41:02,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278683014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:02,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:02,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:41:02,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921337582] [2024-11-13 14:41:02,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:02,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:41:02,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:02,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:41:02,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:41:02,610 INFO L87 Difference]: Start difference. First operand 397 states and 517 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 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 14:41:03,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:03,751 INFO L93 Difference]: Finished difference Result 1018 states and 1433 transitions. [2024-11-13 14:41:03,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:41:03,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 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 124 [2024-11-13 14:41:03,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:03,756 INFO L225 Difference]: With dead ends: 1018 [2024-11-13 14:41:03,756 INFO L226 Difference]: Without dead ends: 659 [2024-11-13 14:41:03,758 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 14:41:03,759 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 126 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:03,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 83 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 14:41:03,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-13 14:41:03,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 397. [2024-11-13 14:41:03,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 396 states have (on average 1.196969696969697) internal successors, (474), 396 states have internal predecessors, (474), 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 14:41:03,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 474 transitions. [2024-11-13 14:41:03,788 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 474 transitions. Word has length 124 [2024-11-13 14:41:03,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:03,788 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 474 transitions. [2024-11-13 14:41:03,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 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 14:41:03,789 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 474 transitions. [2024-11-13 14:41:03,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 14:41:03,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:03,800 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:03,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:41:03,800 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:03,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:03,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1570268181, now seen corresponding path program 1 times [2024-11-13 14:41:03,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:03,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954058987] [2024-11-13 14:41:03,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:03,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:04,133 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 14:41:04,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:04,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954058987] [2024-11-13 14:41:04,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954058987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:04,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:04,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:41:04,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749329040] [2024-11-13 14:41:04,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:04,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:41:04,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:04,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:41:04,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:41:04,136 INFO L87 Difference]: Start difference. First operand 397 states and 474 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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 14:41:04,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:04,710 INFO L93 Difference]: Finished difference Result 923 states and 1105 transitions. [2024-11-13 14:41:04,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:41:04,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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 132 [2024-11-13 14:41:04,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:04,713 INFO L225 Difference]: With dead ends: 923 [2024-11-13 14:41:04,713 INFO L226 Difference]: Without dead ends: 528 [2024-11-13 14:41:04,715 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 14:41:04,716 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 124 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:04,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 47 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:41:04,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-13 14:41:04,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2024-11-13 14:41:04,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.1707779886148009) internal successors, (617), 527 states have internal predecessors, (617), 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 14:41:04,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 617 transitions. [2024-11-13 14:41:04,741 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 617 transitions. Word has length 132 [2024-11-13 14:41:04,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:04,741 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 617 transitions. [2024-11-13 14:41:04,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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 14:41:04,742 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 617 transitions. [2024-11-13 14:41:04,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-13 14:41:04,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:04,748 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:04,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:41:04,748 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:04,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:04,749 INFO L85 PathProgramCache]: Analyzing trace with hash 552102578, now seen corresponding path program 1 times [2024-11-13 14:41:04,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:04,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585786595] [2024-11-13 14:41:04,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:04,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 14:41:04,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:04,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585786595] [2024-11-13 14:41:04,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585786595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:04,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:04,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:41:04,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571487051] [2024-11-13 14:41:04,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:04,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:41:04,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:04,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:41:04,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:41:04,953 INFO L87 Difference]: Start difference. First operand 528 states and 617 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:41:05,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:05,577 INFO L93 Difference]: Finished difference Result 1578 states and 1846 transitions. [2024-11-13 14:41:05,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:41:05,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-11-13 14:41:05,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:05,585 INFO L225 Difference]: With dead ends: 1578 [2024-11-13 14:41:05,586 INFO L226 Difference]: Without dead ends: 1052 [2024-11-13 14:41:05,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:41:05,588 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:05,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 28 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:41:05,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2024-11-13 14:41:05,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 921. [2024-11-13 14:41:05,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.1891304347826086) internal successors, (1094), 920 states have internal predecessors, (1094), 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 14:41:05,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1094 transitions. [2024-11-13 14:41:05,637 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1094 transitions. Word has length 141 [2024-11-13 14:41:05,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:05,638 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1094 transitions. [2024-11-13 14:41:05,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:41:05,638 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1094 transitions. [2024-11-13 14:41:05,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-13 14:41:05,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:05,647 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 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 14:41:05,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:41:05,648 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:05,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:05,648 INFO L85 PathProgramCache]: Analyzing trace with hash -188750525, now seen corresponding path program 1 times [2024-11-13 14:41:05,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:05,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473676028] [2024-11-13 14:41:05,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:05,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:05,961 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 14:41:05,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:05,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473676028] [2024-11-13 14:41:05,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473676028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:05,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:05,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:41:05,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415421543] [2024-11-13 14:41:05,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:05,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:41:05,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:05,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:41:05,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:41:05,964 INFO L87 Difference]: Start difference. First operand 921 states and 1094 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 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 14:41:07,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:07,006 INFO L93 Difference]: Finished difference Result 2364 states and 2857 transitions. [2024-11-13 14:41:07,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:41:07,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 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 147 [2024-11-13 14:41:07,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:07,014 INFO L225 Difference]: With dead ends: 2364 [2024-11-13 14:41:07,015 INFO L226 Difference]: Without dead ends: 1445 [2024-11-13 14:41:07,016 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 14:41:07,019 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 258 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:07,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 36 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:41:07,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2024-11-13 14:41:07,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1183. [2024-11-13 14:41:07,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.1776649746192893) internal successors, (1392), 1182 states have internal predecessors, (1392), 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 14:41:07,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1392 transitions. [2024-11-13 14:41:07,085 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1392 transitions. Word has length 147 [2024-11-13 14:41:07,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:07,086 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1392 transitions. [2024-11-13 14:41:07,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 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 14:41:07,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1392 transitions. [2024-11-13 14:41:07,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-13 14:41:07,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:07,093 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:07,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:41:07,093 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:07,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:07,094 INFO L85 PathProgramCache]: Analyzing trace with hash 964732736, now seen corresponding path program 1 times [2024-11-13 14:41:07,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:07,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619246099] [2024-11-13 14:41:07,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:07,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:07,457 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 14:41:07,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:07,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619246099] [2024-11-13 14:41:07,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619246099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:07,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:07,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:41:07,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735729576] [2024-11-13 14:41:07,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:07,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:41:07,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:07,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:41:07,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:41:07,462 INFO L87 Difference]: Start difference. First operand 1183 states and 1392 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 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 14:41:08,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:08,516 INFO L93 Difference]: Finished difference Result 2888 states and 3355 transitions. [2024-11-13 14:41:08,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:41:08,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 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 161 [2024-11-13 14:41:08,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:08,525 INFO L225 Difference]: With dead ends: 2888 [2024-11-13 14:41:08,525 INFO L226 Difference]: Without dead ends: 1576 [2024-11-13 14:41:08,527 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 14:41:08,529 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 249 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:08,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 40 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:41:08,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2024-11-13 14:41:08,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2024-11-13 14:41:08,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.134349030470914) internal successors, (1638), 1444 states have internal predecessors, (1638), 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 14:41:08,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1638 transitions. [2024-11-13 14:41:08,592 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1638 transitions. Word has length 161 [2024-11-13 14:41:08,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:08,592 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 1638 transitions. [2024-11-13 14:41:08,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 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 14:41:08,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1638 transitions. [2024-11-13 14:41:08,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-13 14:41:08,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:08,599 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:08,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:41:08,600 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:08,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:08,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1005563876, now seen corresponding path program 1 times [2024-11-13 14:41:08,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:08,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938685189] [2024-11-13 14:41:08,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:08,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:08,963 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:41:08,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:08,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938685189] [2024-11-13 14:41:08,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938685189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:08,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:08,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:41:08,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770884514] [2024-11-13 14:41:08,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:08,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:41:08,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:08,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:41:08,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:41:08,968 INFO L87 Difference]: Start difference. First operand 1445 states and 1638 transitions. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 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 14:41:10,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:10,061 INFO L93 Difference]: Finished difference Result 3281 states and 3722 transitions. [2024-11-13 14:41:10,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:41:10,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 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 178 [2024-11-13 14:41:10,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:10,071 INFO L225 Difference]: With dead ends: 3281 [2024-11-13 14:41:10,071 INFO L226 Difference]: Without dead ends: 1838 [2024-11-13 14:41:10,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:41:10,074 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 225 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:10,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 26 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:41:10,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2024-11-13 14:41:10,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1576. [2024-11-13 14:41:10,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.1301587301587301) internal successors, (1780), 1575 states have internal predecessors, (1780), 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 14:41:10,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1780 transitions. [2024-11-13 14:41:10,134 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1780 transitions. Word has length 178 [2024-11-13 14:41:10,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:10,135 INFO L471 AbstractCegarLoop]: Abstraction has 1576 states and 1780 transitions. [2024-11-13 14:41:10,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 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 14:41:10,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1780 transitions. [2024-11-13 14:41:10,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-13 14:41:10,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:10,141 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:10,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:41:10,142 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:10,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:10,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1578448066, now seen corresponding path program 1 times [2024-11-13 14:41:10,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:10,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351699496] [2024-11-13 14:41:10,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:10,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:10,535 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-13 14:41:10,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:10,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351699496] [2024-11-13 14:41:10,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351699496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:10,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:10,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:41:10,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199327761] [2024-11-13 14:41:10,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:10,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:41:10,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:10,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:41:10,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:41:10,538 INFO L87 Difference]: Start difference. First operand 1576 states and 1780 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 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 14:41:11,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:11,611 INFO L93 Difference]: Finished difference Result 3412 states and 3908 transitions. [2024-11-13 14:41:11,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:41:11,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 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 203 [2024-11-13 14:41:11,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:11,621 INFO L225 Difference]: With dead ends: 3412 [2024-11-13 14:41:11,623 INFO L226 Difference]: Without dead ends: 1838 [2024-11-13 14:41:11,625 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 14:41:11,626 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 251 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:11,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 47 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:41:11,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2024-11-13 14:41:11,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1838. [2024-11-13 14:41:11,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1295590636908002) internal successors, (2075), 1837 states have internal predecessors, (2075), 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 14:41:11,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2075 transitions. [2024-11-13 14:41:11,687 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2075 transitions. Word has length 203 [2024-11-13 14:41:11,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:11,688 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2075 transitions. [2024-11-13 14:41:11,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 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 14:41:11,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2075 transitions. [2024-11-13 14:41:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-13 14:41:11,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:11,713 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 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] [2024-11-13 14:41:11,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:41:11,714 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:11,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:11,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1543379298, now seen corresponding path program 1 times [2024-11-13 14:41:11,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:11,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936335166] [2024-11-13 14:41:11,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:11,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-13 14:41:11,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:11,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936335166] [2024-11-13 14:41:11,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936335166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:11,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:11,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:41:11,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185719147] [2024-11-13 14:41:11,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:11,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:41:11,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:11,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:41:11,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:41:11,984 INFO L87 Difference]: Start difference. First operand 1838 states and 2075 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 14:41:12,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:12,633 INFO L93 Difference]: Finished difference Result 3936 states and 4421 transitions. [2024-11-13 14:41:12,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:41:12,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 246 [2024-11-13 14:41:12,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:12,647 INFO L225 Difference]: With dead ends: 3936 [2024-11-13 14:41:12,647 INFO L226 Difference]: Without dead ends: 2100 [2024-11-13 14:41:12,650 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 14:41:12,650 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 86 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:12,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 179 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:41:12,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2024-11-13 14:41:12,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1969. [2024-11-13 14:41:12,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.1046747967479675) internal successors, (2174), 1968 states have internal predecessors, (2174), 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 14:41:12,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2174 transitions. [2024-11-13 14:41:12,740 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2174 transitions. Word has length 246 [2024-11-13 14:41:12,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:12,741 INFO L471 AbstractCegarLoop]: Abstraction has 1969 states and 2174 transitions. [2024-11-13 14:41:12,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 14:41:12,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2174 transitions. [2024-11-13 14:41:12,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-13 14:41:12,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:41:12,752 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 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] [2024-11-13 14:41:12,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:41:12,753 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:41:12,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:12,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1865842969, now seen corresponding path program 1 times [2024-11-13 14:41:12,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:12,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817713140] [2024-11-13 14:41:12,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:12,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:13,292 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 168 proven. 92 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-13 14:41:13,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:13,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817713140] [2024-11-13 14:41:13,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817713140] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:41:13,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175320329] [2024-11-13 14:41:13,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:13,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:41:13,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:41:13,297 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:41:13,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:41:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:13,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:41:13,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:41:14,007 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-13 14:41:14,008 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:41:14,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175320329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:14,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:41:14,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-13 14:41:14,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183351717] [2024-11-13 14:41:14,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:14,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:41:14,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:14,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:41:14,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:41:14,011 INFO L87 Difference]: Start difference. First operand 1969 states and 2174 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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 14:41:14,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:41:14,628 INFO L93 Difference]: Finished difference Result 3934 states and 4345 transitions. [2024-11-13 14:41:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:41:14,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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 268 [2024-11-13 14:41:14,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:41:14,631 INFO L225 Difference]: With dead ends: 3934 [2024-11-13 14:41:14,632 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 14:41:14,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 269 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 14:41:14,636 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 22 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:41:14,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 169 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:41:14,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 14:41:14,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 14:41:14,639 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 14:41:14,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 14:41:14,639 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 268 [2024-11-13 14:41:14,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:41:14,639 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:41:14,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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 14:41:14,640 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 14:41:14,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 14:41:14,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 14:41:14,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:41:14,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 14:41:14,854 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:14,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 14:41:15,115 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:41:15,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:41:15 BoogieIcfgContainer [2024-11-13 14:41:15,137 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:41:15,138 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:41:15,138 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:41:15,138 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:41:15,139 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:40:57" (3/4) ... [2024-11-13 14:41:15,141 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 14:41:15,160 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-13 14:41:15,164 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 14:41:15,166 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 14:41:15,167 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 14:41:15,338 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 14:41:15,339 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 14:41:15,339 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:41:15,341 INFO L158 Benchmark]: Toolchain (without parser) took 20428.05ms. Allocated memory was 109.1MB in the beginning and 268.4MB in the end (delta: 159.4MB). Free memory was 81.8MB in the beginning and 93.8MB in the end (delta: -12.0MB). Peak memory consumption was 144.4MB. Max. memory is 16.1GB. [2024-11-13 14:41:15,342 INFO L158 Benchmark]: CDTParser took 1.55ms. Allocated memory is still 83.9MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:41:15,342 INFO L158 Benchmark]: CACSL2BoogieTranslator took 704.07ms. Allocated memory is still 109.1MB. Free memory was 81.8MB in the beginning and 55.1MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 14:41:15,342 INFO L158 Benchmark]: Boogie Procedure Inliner took 132.37ms. Allocated memory is still 109.1MB. Free memory was 55.1MB in the beginning and 49.4MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:41:15,343 INFO L158 Benchmark]: Boogie Preprocessor took 144.27ms. Allocated memory is still 109.1MB. Free memory was 49.4MB in the beginning and 44.9MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:41:15,344 INFO L158 Benchmark]: RCFGBuilder took 1976.68ms. Allocated memory is still 109.1MB. Free memory was 44.9MB in the beginning and 53.7MB in the end (delta: -8.8MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2024-11-13 14:41:15,344 INFO L158 Benchmark]: TraceAbstraction took 17253.34ms. Allocated memory was 109.1MB in the beginning and 268.4MB in the end (delta: 159.4MB). Free memory was 52.9MB in the beginning and 104.3MB in the end (delta: -51.4MB). Peak memory consumption was 109.0MB. Max. memory is 16.1GB. [2024-11-13 14:41:15,345 INFO L158 Benchmark]: Witness Printer took 201.45ms. Allocated memory is still 268.4MB. Free memory was 104.3MB in the beginning and 93.8MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:41:15,347 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.55ms. Allocated memory is still 83.9MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 704.07ms. Allocated memory is still 109.1MB. Free memory was 81.8MB in the beginning and 55.1MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 132.37ms. Allocated memory is still 109.1MB. Free memory was 55.1MB in the beginning and 49.4MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 144.27ms. Allocated memory is still 109.1MB. Free memory was 49.4MB in the beginning and 44.9MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1976.68ms. Allocated memory is still 109.1MB. Free memory was 44.9MB in the beginning and 53.7MB in the end (delta: -8.8MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * TraceAbstraction took 17253.34ms. Allocated memory was 109.1MB in the beginning and 268.4MB in the end (delta: 159.4MB). Free memory was 52.9MB in the beginning and 104.3MB in the end (delta: -51.4MB). Peak memory consumption was 109.0MB. Max. memory is 16.1GB. * Witness Printer took 201.45ms. Allocated memory is still 268.4MB. Free memory was 104.3MB in the beginning and 93.8MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. 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: 537]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.9s, OverallIterations: 10, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1824 SdHoareTripleChecker+Valid, 9.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1824 mSDsluCounter, 732 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 881 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4970 IncrementalHoareTripleChecker+Invalid, 5851 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 881 mSolverCounterUnsat, 634 mSDtfsCounter, 4970 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 302 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1969occurred in iteration=9, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 1179 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 1985 NumberOfCodeBlocks, 1985 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1974 ConstructedInterpolants, 0 QuantifiedInterpolants, 7401 SizeOfPredicates, 0 NumberOfNonLiveVariables, 477 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 1217/1309 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: 593]: Loop Invariant Derived loop invariant: ((((((((a12 == 8) && (a21 == 1)) && (a17 == 1)) && (a20 == 1)) || (((a21 == 1) && (a16 <= 5)) && (a20 == 1))) || ((a21 == 1) && (a16 <= 4))) || (a21 <= 0)) || ((a21 == 1) && (a8 != 13))) RESULT: Ultimate proved your program to be correct! [2024-11-13 14:41:15,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dadbb23-183e-4927-8ed0-ac038671b025/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