./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label17.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_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/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_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/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_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/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 7125651fe28e5ed3820e1570dabb559d66d570950097f9760267ff4877c30610 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:01:31,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:01:31,088 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 16:01:31,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:01:31,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:01:31,118 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:01:31,119 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:01:31,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:01:31,120 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:01:31,120 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:01:31,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:01:31,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:01:31,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:01:31,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:01:31,121 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:01:31,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:01:31,121 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:01:31,121 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:01:31,122 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:01:31,122 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:01:31,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:01:31,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:01:31,122 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:01:31,122 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:01:31,122 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:01:31,123 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:01:31,123 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:01:31,123 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:01:31,123 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:01:31,123 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:01:31,123 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:01:31,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:01:31,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:01:31,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:01:31,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:01:31,124 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:01:31,124 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:01:31,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:01:31,124 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:01:31,124 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:01:31,125 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:01:31,125 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:01:31,125 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_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/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 -> 7125651fe28e5ed3820e1570dabb559d66d570950097f9760267ff4877c30610 [2024-11-13 16:01:31,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:01:31,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:01:31,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:01:31,462 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:01:31,462 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:01:31,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem01_label17.c Unable to find full path for "g++" [2024-11-13 16:01:33,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:01:33,879 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:01:33,880 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/sv-benchmarks/c/eca-rers2012/Problem01_label17.c [2024-11-13 16:01:33,893 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/data/a7275f22e/5bb9d6b6116d44c282bebc5c010044af/FLAG396757a77 [2024-11-13 16:01:33,920 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/data/a7275f22e/5bb9d6b6116d44c282bebc5c010044af [2024-11-13 16:01:33,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:01:33,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:01:33,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:01:33,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:01:33,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:01:33,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:01:33" (1/1) ... [2024-11-13 16:01:33,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64897f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:33, skipping insertion in model container [2024-11-13 16:01:33,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:01:33" (1/1) ... [2024-11-13 16:01:33,995 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:01:34,339 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_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/sv-benchmarks/c/eca-rers2012/Problem01_label17.c[19973,19986] [2024-11-13 16:01:34,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:01:34,393 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:01:34,496 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_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/sv-benchmarks/c/eca-rers2012/Problem01_label17.c[19973,19986] [2024-11-13 16:01:34,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:01:34,530 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:01:34,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:34 WrapperNode [2024-11-13 16:01:34,531 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:01:34,532 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:01:34,532 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:01:34,532 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:01:34,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:34" (1/1) ... [2024-11-13 16:01:34,565 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:34" (1/1) ... [2024-11-13 16:01:34,625 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2024-11-13 16:01:34,625 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:01:34,626 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:01:34,626 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:01:34,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:01:34,644 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:34" (1/1) ... [2024-11-13 16:01:34,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:34" (1/1) ... [2024-11-13 16:01:34,651 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:34" (1/1) ... [2024-11-13 16:01:34,693 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 16:01:34,693 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:34" (1/1) ... [2024-11-13 16:01:34,693 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:34" (1/1) ... [2024-11-13 16:01:34,713 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:34" (1/1) ... [2024-11-13 16:01:34,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:34" (1/1) ... [2024-11-13 16:01:34,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:34" (1/1) ... [2024-11-13 16:01:34,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:34" (1/1) ... [2024-11-13 16:01:34,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:01:34,751 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:01:34,751 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:01:34,751 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:01:34,752 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:34" (1/1) ... [2024-11-13 16:01:34,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:01:34,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:34,807 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:01:34,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:01:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:01:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:01:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:01:34,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:01:34,962 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:01:34,964 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:01:36,442 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-11-13 16:01:36,444 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:01:36,469 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:01:36,470 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:01:36,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:01:36 BoogieIcfgContainer [2024-11-13 16:01:36,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:01:36,474 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:01:36,474 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:01:36,480 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:01:36,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:01:33" (1/3) ... [2024-11-13 16:01:36,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73246366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:01:36, skipping insertion in model container [2024-11-13 16:01:36,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:34" (2/3) ... [2024-11-13 16:01:36,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73246366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:01:36, skipping insertion in model container [2024-11-13 16:01:36,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:01:36" (3/3) ... [2024-11-13 16:01:36,484 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2024-11-13 16:01:36,504 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:01:36,506 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem01_label17.c that has 1 procedures, 198 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 16:01:36,596 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:01:36,614 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;@6ee64691, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:01:36,615 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 16:01:36,622 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 16:01:36,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-13 16:01:36,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:36,639 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] [2024-11-13 16:01:36,640 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:36,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:36,647 INFO L85 PathProgramCache]: Analyzing trace with hash 2126880479, now seen corresponding path program 1 times [2024-11-13 16:01:36,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:36,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916631054] [2024-11-13 16:01:36,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:36,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:37,476 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 16:01:37,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:37,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916631054] [2024-11-13 16:01:37,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916631054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:37,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:37,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:01:37,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35783733] [2024-11-13 16:01:37,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:37,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:37,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:37,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:37,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:37,529 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 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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 16:01:38,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:38,708 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2024-11-13 16:01:38,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:38,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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 116 [2024-11-13 16:01:38,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:38,733 INFO L225 Difference]: With dead ends: 528 [2024-11-13 16:01:38,734 INFO L226 Difference]: Without dead ends: 266 [2024-11-13 16:01:38,739 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 16:01:38,746 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 66 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:38,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 73 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 16:01:38,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-13 16:01:38,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2024-11-13 16:01:38,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.411320754716981) internal successors, (374), 265 states have internal predecessors, (374), 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 16:01:38,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 374 transitions. [2024-11-13 16:01:38,835 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 374 transitions. Word has length 116 [2024-11-13 16:01:38,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:38,837 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 374 transitions. [2024-11-13 16:01:38,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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 16:01:38,838 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 374 transitions. [2024-11-13 16:01:38,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-13 16:01:38,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:38,840 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-11-13 16:01:38,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:01:38,840 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:38,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:38,844 INFO L85 PathProgramCache]: Analyzing trace with hash 473702615, now seen corresponding path program 1 times [2024-11-13 16:01:38,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:38,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887990122] [2024-11-13 16:01:38,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:38,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:39,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 16:01:39,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:39,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887990122] [2024-11-13 16:01:39,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887990122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:39,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:39,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:01:39,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450765702] [2024-11-13 16:01:39,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:39,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:39,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:39,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:39,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:39,380 INFO L87 Difference]: Start difference. First operand 266 states and 374 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 16:01:40,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:40,095 INFO L93 Difference]: Finished difference Result 792 states and 1117 transitions. [2024-11-13 16:01:40,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:40,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 120 [2024-11-13 16:01:40,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:40,102 INFO L225 Difference]: With dead ends: 792 [2024-11-13 16:01:40,102 INFO L226 Difference]: Without dead ends: 528 [2024-11-13 16:01:40,103 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 16:01:40,105 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 38 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:40,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 31 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 16:01:40,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-13 16:01:40,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2024-11-13 16:01:40,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3434535104364327) internal successors, (708), 527 states have internal predecessors, (708), 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 16:01:40,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 708 transitions. [2024-11-13 16:01:40,147 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 708 transitions. Word has length 120 [2024-11-13 16:01:40,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:40,147 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 708 transitions. [2024-11-13 16:01:40,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 16:01:40,148 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 708 transitions. [2024-11-13 16:01:40,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-13 16:01:40,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:40,152 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:40,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:01:40,153 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:40,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:40,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1573298899, now seen corresponding path program 1 times [2024-11-13 16:01:40,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:40,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716229617] [2024-11-13 16:01:40,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:40,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:40,416 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 16:01:40,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:40,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716229617] [2024-11-13 16:01:40,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716229617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:40,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:40,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:01:40,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132547076] [2024-11-13 16:01:40,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:40,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:40,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:40,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:40,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:40,424 INFO L87 Difference]: Start difference. First operand 528 states and 708 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 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 16:01:41,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:41,084 INFO L93 Difference]: Finished difference Result 1316 states and 1785 transitions. [2024-11-13 16:01:41,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:41,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 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 150 [2024-11-13 16:01:41,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:41,089 INFO L225 Difference]: With dead ends: 1316 [2024-11-13 16:01:41,089 INFO L226 Difference]: Without dead ends: 790 [2024-11-13 16:01:41,091 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 16:01:41,092 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 147 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:41,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 30 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 16:01:41,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2024-11-13 16:01:41,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 659. [2024-11-13 16:01:41,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.3495440729483283) internal successors, (888), 658 states have internal predecessors, (888), 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 16:01:41,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 888 transitions. [2024-11-13 16:01:41,131 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 888 transitions. Word has length 150 [2024-11-13 16:01:41,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:41,136 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 888 transitions. [2024-11-13 16:01:41,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 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 16:01:41,136 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 888 transitions. [2024-11-13 16:01:41,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-13 16:01:41,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:41,145 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:41,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:01:41,145 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:41,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:41,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1958213449, now seen corresponding path program 1 times [2024-11-13 16:01:41,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:41,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987231209] [2024-11-13 16:01:41,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:41,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:41,572 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-13 16:01:41,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:41,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987231209] [2024-11-13 16:01:41,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987231209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:41,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:41,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:01:41,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165435429] [2024-11-13 16:01:41,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:41,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:41,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:41,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:41,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:41,581 INFO L87 Difference]: Start difference. First operand 659 states and 888 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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 16:01:42,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:42,186 INFO L93 Difference]: Finished difference Result 1316 states and 1774 transitions. [2024-11-13 16:01:42,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:42,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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 154 [2024-11-13 16:01:42,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:42,192 INFO L225 Difference]: With dead ends: 1316 [2024-11-13 16:01:42,192 INFO L226 Difference]: Without dead ends: 659 [2024-11-13 16:01:42,193 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 16:01:42,194 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 132 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:42,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 62 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 16:01:42,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-13 16:01:42,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2024-11-13 16:01:42,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.3404255319148937) internal successors, (882), 658 states have internal predecessors, (882), 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 16:01:42,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 882 transitions. [2024-11-13 16:01:42,217 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 882 transitions. Word has length 154 [2024-11-13 16:01:42,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:42,218 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 882 transitions. [2024-11-13 16:01:42,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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 16:01:42,219 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 882 transitions. [2024-11-13 16:01:42,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-13 16:01:42,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:42,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:42,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:01:42,223 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:42,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:42,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1782230865, now seen corresponding path program 1 times [2024-11-13 16:01:42,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:42,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880851483] [2024-11-13 16:01:42,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:42,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:42,592 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 16:01:42,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:42,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880851483] [2024-11-13 16:01:42,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880851483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:42,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:42,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:01:42,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844007536] [2024-11-13 16:01:42,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:42,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:42,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:42,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:42,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:42,597 INFO L87 Difference]: Start difference. First operand 659 states and 882 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 16:01:43,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:43,232 INFO L93 Difference]: Finished difference Result 1578 states and 2090 transitions. [2024-11-13 16:01:43,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:43,233 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 158 [2024-11-13 16:01:43,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:43,238 INFO L225 Difference]: With dead ends: 1578 [2024-11-13 16:01:43,238 INFO L226 Difference]: Without dead ends: 921 [2024-11-13 16:01:43,239 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 16:01:43,240 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 135 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:43,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 54 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 16:01:43,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-11-13 16:01:43,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2024-11-13 16:01:43,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.2826086956521738) internal successors, (1180), 920 states have internal predecessors, (1180), 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 16:01:43,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1180 transitions. [2024-11-13 16:01:43,292 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1180 transitions. Word has length 158 [2024-11-13 16:01:43,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:43,293 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1180 transitions. [2024-11-13 16:01:43,293 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 16:01:43,296 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1180 transitions. [2024-11-13 16:01:43,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:01:43,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:43,300 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:43,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 16:01:43,300 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:43,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:43,301 INFO L85 PathProgramCache]: Analyzing trace with hash -500097780, now seen corresponding path program 1 times [2024-11-13 16:01:43,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:43,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701702856] [2024-11-13 16:01:43,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:43,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:43,538 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-13 16:01:43,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:43,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701702856] [2024-11-13 16:01:43,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701702856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:43,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:43,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:01:43,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555417137] [2024-11-13 16:01:43,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:43,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:43,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:43,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:43,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:43,542 INFO L87 Difference]: Start difference. First operand 921 states and 1180 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 16:01:44,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:44,261 INFO L93 Difference]: Finished difference Result 2495 states and 3157 transitions. [2024-11-13 16:01:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:44,261 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 167 [2024-11-13 16:01:44,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:44,270 INFO L225 Difference]: With dead ends: 2495 [2024-11-13 16:01:44,270 INFO L226 Difference]: Without dead ends: 1576 [2024-11-13 16:01:44,272 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 16:01:44,272 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 137 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:44,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 23 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 16:01:44,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2024-11-13 16:01:44,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1183. [2024-11-13 16:01:44,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.260575296108291) internal successors, (1490), 1182 states have internal predecessors, (1490), 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 16:01:44,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1490 transitions. [2024-11-13 16:01:44,324 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1490 transitions. Word has length 167 [2024-11-13 16:01:44,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:44,324 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1490 transitions. [2024-11-13 16:01:44,325 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 16:01:44,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1490 transitions. [2024-11-13 16:01:44,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-13 16:01:44,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:44,336 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:44,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 16:01:44,337 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:44,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:44,337 INFO L85 PathProgramCache]: Analyzing trace with hash 707479826, now seen corresponding path program 1 times [2024-11-13 16:01:44,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:44,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918946561] [2024-11-13 16:01:44,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:44,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:44,687 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-13 16:01:44,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:44,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918946561] [2024-11-13 16:01:44,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918946561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:44,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:44,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:01:44,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739777534] [2024-11-13 16:01:44,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:44,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:44,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:44,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:44,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:44,691 INFO L87 Difference]: Start difference. First operand 1183 states and 1490 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 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 16:01:45,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:45,261 INFO L93 Difference]: Finished difference Result 2495 states and 3151 transitions. [2024-11-13 16:01:45,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:45,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 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 183 [2024-11-13 16:01:45,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:45,268 INFO L225 Difference]: With dead ends: 2495 [2024-11-13 16:01:45,269 INFO L226 Difference]: Without dead ends: 1314 [2024-11-13 16:01:45,271 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 16:01:45,272 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 108 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:45,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 62 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 16:01:45,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2024-11-13 16:01:45,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2024-11-13 16:01:45,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1313 states have (on average 1.2482863670982483) internal successors, (1639), 1313 states have internal predecessors, (1639), 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 16:01:45,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1639 transitions. [2024-11-13 16:01:45,317 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1639 transitions. Word has length 183 [2024-11-13 16:01:45,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:45,317 INFO L471 AbstractCegarLoop]: Abstraction has 1314 states and 1639 transitions. [2024-11-13 16:01:45,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 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 16:01:45,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1639 transitions. [2024-11-13 16:01:45,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-13 16:01:45,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:45,323 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 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, 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] [2024-11-13 16:01:45,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 16:01:45,324 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:45,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:45,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1273766980, now seen corresponding path program 1 times [2024-11-13 16:01:45,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:45,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521332771] [2024-11-13 16:01:45,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:45,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:45,707 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-13 16:01:45,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:45,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521332771] [2024-11-13 16:01:45,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521332771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:45,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:45,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:01:45,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282729292] [2024-11-13 16:01:45,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:45,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:01:45,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:45,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:01:45,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:01:45,709 INFO L87 Difference]: Start difference. First operand 1314 states and 1639 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 16:01:46,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:46,744 INFO L93 Difference]: Finished difference Result 3281 states and 4058 transitions. [2024-11-13 16:01:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:01:46,745 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 199 [2024-11-13 16:01:46,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:46,757 INFO L225 Difference]: With dead ends: 3281 [2024-11-13 16:01:46,758 INFO L226 Difference]: Without dead ends: 1838 [2024-11-13 16:01:46,761 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 16:01:46,762 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 276 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:46,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 38 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 16:01:46,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2024-11-13 16:01:46,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1838. [2024-11-13 16:01:46,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1279259662493195) internal successors, (2072), 1837 states have internal predecessors, (2072), 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 16:01:46,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2072 transitions. [2024-11-13 16:01:46,822 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2072 transitions. Word has length 199 [2024-11-13 16:01:46,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:46,823 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2072 transitions. [2024-11-13 16:01:46,823 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 16:01:46,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2072 transitions. [2024-11-13 16:01:46,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-13 16:01:46,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:46,830 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 16:01:46,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 16:01:46,830 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:46,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:46,831 INFO L85 PathProgramCache]: Analyzing trace with hash 932923744, now seen corresponding path program 1 times [2024-11-13 16:01:46,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:46,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947096380] [2024-11-13 16:01:46,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:46,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:47,234 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 16:01:47,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:47,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947096380] [2024-11-13 16:01:47,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947096380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:47,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:47,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:01:47,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686296800] [2024-11-13 16:01:47,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:47,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:01:47,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:47,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:01:47,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:01:47,237 INFO L87 Difference]: Start difference. First operand 1838 states and 2072 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 16:01:48,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:48,183 INFO L93 Difference]: Finished difference Result 4067 states and 4576 transitions. [2024-11-13 16:01:48,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:01:48,183 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 216 [2024-11-13 16:01:48,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:48,193 INFO L225 Difference]: With dead ends: 4067 [2024-11-13 16:01:48,193 INFO L226 Difference]: Without dead ends: 2231 [2024-11-13 16:01:48,196 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 16:01:48,196 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 226 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:48,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 26 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 16:01:48,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2024-11-13 16:01:48,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1838. [2024-11-13 16:01:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1045182362547632) internal successors, (2029), 1837 states have internal predecessors, (2029), 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 16:01:48,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2029 transitions. [2024-11-13 16:01:48,255 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2029 transitions. Word has length 216 [2024-11-13 16:01:48,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:48,255 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2029 transitions. [2024-11-13 16:01:48,255 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 16:01:48,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2029 transitions. [2024-11-13 16:01:48,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-13 16:01:48,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:48,262 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2024-11-13 16:01:48,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 16:01:48,262 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:48,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:48,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1621380319, now seen corresponding path program 1 times [2024-11-13 16:01:48,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:48,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622061843] [2024-11-13 16:01:48,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:48,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 63 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:01:49,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:49,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622061843] [2024-11-13 16:01:49,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622061843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:01:49,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789466038] [2024-11-13 16:01:49,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:49,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:49,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:49,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:49,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:01:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:49,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:01:49,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:49,814 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-11-13 16:01:49,814 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:01:49,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789466038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:49,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:01:49,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-13 16:01:49,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220345597] [2024-11-13 16:01:49,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:49,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:49,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:49,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:49,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:01:49,816 INFO L87 Difference]: Start difference. First operand 1838 states and 2029 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 16:01:50,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:50,398 INFO L93 Difference]: Finished difference Result 3150 states and 3456 transitions. [2024-11-13 16:01:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:50,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 220 [2024-11-13 16:01:50,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:50,410 INFO L225 Difference]: With dead ends: 3150 [2024-11-13 16:01:50,410 INFO L226 Difference]: Without dead ends: 3148 [2024-11-13 16:01:50,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:01:50,412 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 37 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:50,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 30 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 16:01:50,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2024-11-13 16:01:50,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 2886. [2024-11-13 16:01:50,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2886 states, 2885 states have (on average 1.0974003466204507) internal successors, (3166), 2885 states have internal predecessors, (3166), 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 16:01:50,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3166 transitions. [2024-11-13 16:01:50,495 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3166 transitions. Word has length 220 [2024-11-13 16:01:50,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:50,496 INFO L471 AbstractCegarLoop]: Abstraction has 2886 states and 3166 transitions. [2024-11-13 16:01:50,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 16:01:50,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3166 transitions. [2024-11-13 16:01:50,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-13 16:01:50,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:50,504 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 16:01:50,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 16:01:50,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:50,705 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:50,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:50,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1125413903, now seen corresponding path program 1 times [2024-11-13 16:01:50,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:50,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585659093] [2024-11-13 16:01:50,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:50,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-11-13 16:01:51,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:51,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585659093] [2024-11-13 16:01:51,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585659093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:51,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:51,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:01:51,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351994355] [2024-11-13 16:01:51,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:51,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:01:51,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:51,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:01:51,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:01:51,128 INFO L87 Difference]: Start difference. First operand 2886 states and 3166 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 16:01:52,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:52,128 INFO L93 Difference]: Finished difference Result 5901 states and 6480 transitions. [2024-11-13 16:01:52,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:01:52,129 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 247 [2024-11-13 16:01:52,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:52,141 INFO L225 Difference]: With dead ends: 5901 [2024-11-13 16:01:52,142 INFO L226 Difference]: Without dead ends: 3017 [2024-11-13 16:01:52,145 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 16:01:52,146 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 253 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:52,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 45 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 16:01:52,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2024-11-13 16:01:52,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 3017. [2024-11-13 16:01:52,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 3016 states have (on average 1.089522546419098) internal successors, (3286), 3016 states have internal predecessors, (3286), 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 16:01:52,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3286 transitions. [2024-11-13 16:01:52,245 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3286 transitions. Word has length 247 [2024-11-13 16:01:52,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:52,245 INFO L471 AbstractCegarLoop]: Abstraction has 3017 states and 3286 transitions. [2024-11-13 16:01:52,245 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 16:01:52,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3286 transitions. [2024-11-13 16:01:52,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-13 16:01:52,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:52,254 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:52,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 16:01:52,255 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:52,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:52,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1382604784, now seen corresponding path program 1 times [2024-11-13 16:01:52,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:52,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100571676] [2024-11-13 16:01:52,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:52,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:52,577 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-13 16:01:52,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:52,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100571676] [2024-11-13 16:01:52,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100571676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:52,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:52,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:01:52,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51680903] [2024-11-13 16:01:52,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:52,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:52,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:52,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:52,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:52,582 INFO L87 Difference]: Start difference. First operand 3017 states and 3286 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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 16:01:53,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:53,178 INFO L93 Difference]: Finished difference Result 6556 states and 7143 transitions. [2024-11-13 16:01:53,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:53,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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 265 [2024-11-13 16:01:53,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:53,192 INFO L225 Difference]: With dead ends: 6556 [2024-11-13 16:01:53,192 INFO L226 Difference]: Without dead ends: 3541 [2024-11-13 16:01:53,196 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 16:01:53,198 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 86 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:53,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 179 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 16:01:53,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3541 states. [2024-11-13 16:01:53,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3541 to 3410. [2024-11-13 16:01:53,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 3409 states have (on average 1.0794954532120857) internal successors, (3680), 3409 states have internal predecessors, (3680), 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 16:01:53,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 3680 transitions. [2024-11-13 16:01:53,289 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 3680 transitions. Word has length 265 [2024-11-13 16:01:53,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:53,290 INFO L471 AbstractCegarLoop]: Abstraction has 3410 states and 3680 transitions. [2024-11-13 16:01:53,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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 16:01:53,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 3680 transitions. [2024-11-13 16:01:53,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-13 16:01:53,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:53,300 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-13 16:01:53,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 16:01:53,300 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:53,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:53,301 INFO L85 PathProgramCache]: Analyzing trace with hash -165587239, now seen corresponding path program 1 times [2024-11-13 16:01:53,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:53,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128904896] [2024-11-13 16:01:53,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:53,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:53,671 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-13 16:01:53,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:53,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128904896] [2024-11-13 16:01:53,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128904896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:53,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:53,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:01:53,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341059956] [2024-11-13 16:01:53,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:53,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:53,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:53,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:53,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:53,674 INFO L87 Difference]: Start difference. First operand 3410 states and 3680 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 16:01:54,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:54,206 INFO L93 Difference]: Finished difference Result 7342 states and 7907 transitions. [2024-11-13 16:01:54,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:54,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 287 [2024-11-13 16:01:54,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:54,219 INFO L225 Difference]: With dead ends: 7342 [2024-11-13 16:01:54,219 INFO L226 Difference]: Without dead ends: 3410 [2024-11-13 16:01:54,223 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 16:01:54,224 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 24 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:54,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 172 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 16:01:54,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2024-11-13 16:01:54,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 2231. [2024-11-13 16:01:54,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 1.072645739910314) internal successors, (2392), 2230 states have internal predecessors, (2392), 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 16:01:54,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2392 transitions. [2024-11-13 16:01:54,290 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2392 transitions. Word has length 287 [2024-11-13 16:01:54,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:54,291 INFO L471 AbstractCegarLoop]: Abstraction has 2231 states and 2392 transitions. [2024-11-13 16:01:54,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 16:01:54,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2392 transitions. [2024-11-13 16:01:54,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-13 16:01:54,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:54,299 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-13 16:01:54,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 16:01:54,299 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:54,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:54,300 INFO L85 PathProgramCache]: Analyzing trace with hash -2131286777, now seen corresponding path program 1 times [2024-11-13 16:01:54,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:54,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307714862] [2024-11-13 16:01:54,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:54,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:55,082 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 182 proven. 103 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-13 16:01:55,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:55,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307714862] [2024-11-13 16:01:55,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307714862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:01:55,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723798026] [2024-11-13 16:01:55,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:55,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:55,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:55,086 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:55,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:01:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:55,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:01:55,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:55,523 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-13 16:01:55,523 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:01:55,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723798026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:55,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:01:55,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-13 16:01:55,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848148052] [2024-11-13 16:01:55,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:55,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:55,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:55,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:55,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:01:55,528 INFO L87 Difference]: Start difference. First operand 2231 states and 2392 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 16:01:56,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:56,048 INFO L93 Difference]: Finished difference Result 4327 states and 4647 transitions. [2024-11-13 16:01:56,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:56,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 300 [2024-11-13 16:01:56,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:56,050 INFO L225 Difference]: With dead ends: 4327 [2024-11-13 16:01:56,050 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 16:01:56,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:01:56,054 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:56,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 160 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 16:01:56,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 16:01:56,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 16:01:56,055 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 16:01:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 16:01:56,055 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 300 [2024-11-13 16:01:56,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:56,055 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 16:01:56,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 16:01:56,056 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 16:01:56,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 16:01:56,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 16:01:56,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 16:01:56,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 16:01:56,265 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:56,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 16:01:56,796 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:01:56,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:01:56 BoogieIcfgContainer [2024-11-13 16:01:56,827 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:01:56,828 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:01:56,828 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:01:56,828 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:01:56,831 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:01:36" (3/4) ... [2024-11-13 16:01:56,834 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 16:01:56,862 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-13 16:01:56,865 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 16:01:56,866 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 16:01:56,867 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 16:01:57,055 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 16:01:57,056 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 16:01:57,056 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:01:57,057 INFO L158 Benchmark]: Toolchain (without parser) took 23132.26ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 117.9MB in the beginning and 249.3MB in the end (delta: -131.5MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. [2024-11-13 16:01:57,057 INFO L158 Benchmark]: CDTParser took 1.97ms. Allocated memory is still 142.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:01:57,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 604.54ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 90.7MB in the end (delta: 27.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 16:01:57,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.09ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 85.3MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:01:57,058 INFO L158 Benchmark]: Boogie Preprocessor took 124.52ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 80.4MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:01:57,059 INFO L158 Benchmark]: RCFGBuilder took 1720.28ms. Allocated memory is still 142.6MB. Free memory was 80.4MB in the beginning and 64.3MB in the end (delta: 16.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-13 16:01:57,059 INFO L158 Benchmark]: TraceAbstraction took 20353.46ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 64.3MB in the beginning and 262.1MB in the end (delta: -197.8MB). Peak memory consumption was 149.3MB. Max. memory is 16.1GB. [2024-11-13 16:01:57,060 INFO L158 Benchmark]: Witness Printer took 228.11ms. Allocated memory is still 327.2MB. Free memory was 262.1MB in the beginning and 249.3MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:01:57,063 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.97ms. Allocated memory is still 142.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 604.54ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 90.7MB in the end (delta: 27.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.09ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 85.3MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 124.52ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 80.4MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1720.28ms. Allocated memory is still 142.6MB. Free memory was 80.4MB in the beginning and 64.3MB in the end (delta: 16.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 20353.46ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 64.3MB in the beginning and 262.1MB in the end (delta: -197.8MB). Peak memory consumption was 149.3MB. Max. memory is 16.1GB. * Witness Printer took 228.11ms. Allocated memory is still 327.2MB. Free memory was 262.1MB in the beginning and 249.3MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 534]: 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: 19.7s, OverallIterations: 14, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1686 SdHoareTripleChecker+Valid, 9.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1686 mSDsluCounter, 985 SdHoareTripleChecker+Invalid, 7.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 878 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5377 IncrementalHoareTripleChecker+Invalid, 6255 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 878 mSolverCounterUnsat, 897 mSDtfsCounter, 5377 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 559 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3410occurred in iteration=12, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 2489 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 3302 NumberOfCodeBlocks, 3302 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3286 ConstructedInterpolants, 0 QuantifiedInterpolants, 11486 SizeOfPredicates, 0 NumberOfNonLiveVariables, 857 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 2487/2682 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: (((((((((((((((a16 == 6) && (a21 == 1)) && (a17 == 1)) && (15 <= a8)) || (((a8 <= 13) && (a17 == 1)) && (a16 <= 5))) || ((((a7 <= 0) && (a8 <= 13)) && (a21 == 1)) && (a16 <= 4))) || (((a8 <= 13) && (a17 <= 0)) && (a20 == 1))) || ((((a16 == 6) && (a17 <= 0)) && (a21 == 1)) && (15 <= a8))) || (((((a20 != 1) && (5 == a16)) && (a21 == 1)) && (a17 == 1)) && (15 <= a8))) || ((((a21 == 1) && (a17 == 1)) && (a16 <= 4)) && (a20 == 1))) || ((((a20 != 1) && (a8 <= 13)) && (a21 == 1)) && (a16 <= 4))) || (((a17 <= 0) && (a21 == 1)) && (a16 <= 5))) || (((a17 <= 0) && (a21 == 1)) && (a20 == 1))) || ((((a21 == 1) && (a17 == 1)) && (a16 <= 4)) && (15 <= a8))) || ((((a7 <= 0) && (a21 == 1)) && (a17 == 1)) && (a20 == 1))) RESULT: Ultimate proved your program to be correct! [2024-11-13 16:01:57,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ff32ba-6d2d-4ab1-8931-ab0cfdf436a5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE