./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem03_label33.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem03_label33.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2175eebe64ea8c44232439b071a8f90dfd26c4ea62c7d488d233e915c25d2276 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:09:11,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:09:11,603 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:09:11,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:09:11,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:09:11,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:09:11,657 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:09:11,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:09:11,658 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:09:11,659 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:09:11,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:09:11,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:09:11,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:09:11,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:09:11,662 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:09:11,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:09:11,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:09:11,662 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:09:11,663 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:09:11,663 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:09:11,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:09:11,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:09:11,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:09:11,667 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:09:11,667 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:09:11,667 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:09:11,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:09:11,667 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:09:11,667 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:09:11,668 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:09:11,668 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:09:11,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:09:11,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:09:11,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:09:11,668 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:09:11,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:09:11,669 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:09:11,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:09:11,669 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:09:11,669 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:09:11,670 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:09:11,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:09:11,670 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2175eebe64ea8c44232439b071a8f90dfd26c4ea62c7d488d233e915c25d2276 [2024-11-16 03:09:11,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:09:11,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:09:11,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:09:11,926 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:09:11,926 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:09:11,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem03_label33.c [2024-11-16 03:09:13,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:09:13,463 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:09:13,465 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label33.c [2024-11-16 03:09:13,481 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b28c475b9/07d5ea390c304dbdb5f1c1c59e9a00fb/FLAG7297ec415 [2024-11-16 03:09:13,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b28c475b9/07d5ea390c304dbdb5f1c1c59e9a00fb [2024-11-16 03:09:13,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:09:13,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:09:13,721 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:09:13,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:09:13,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:09:13,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:09:13" (1/1) ... [2024-11-16 03:09:13,732 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d0b2805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:13, skipping insertion in model container [2024-11-16 03:09:13,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:09:13" (1/1) ... [2024-11-16 03:09:13,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:09:14,170 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label33.c[55678,55691] [2024-11-16 03:09:14,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:09:14,210 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:09:14,337 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label33.c[55678,55691] [2024-11-16 03:09:14,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:09:14,368 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:09:14,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:14 WrapperNode [2024-11-16 03:09:14,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:09:14,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:09:14,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:09:14,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:09:14,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:14" (1/1) ... [2024-11-16 03:09:14,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:14" (1/1) ... [2024-11-16 03:09:14,467 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2024-11-16 03:09:14,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:09:14,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:09:14,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:09:14,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:09:14,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:14" (1/1) ... [2024-11-16 03:09:14,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:14" (1/1) ... [2024-11-16 03:09:14,485 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:14" (1/1) ... [2024-11-16 03:09:14,525 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]. [2024-11-16 03:09:14,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:14" (1/1) ... [2024-11-16 03:09:14,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:14" (1/1) ... [2024-11-16 03:09:14,557 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:14" (1/1) ... [2024-11-16 03:09:14,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:14" (1/1) ... [2024-11-16 03:09:14,571 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:14" (1/1) ... [2024-11-16 03:09:14,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:14" (1/1) ... [2024-11-16 03:09:14,589 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:09:14,590 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:09:14,590 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:09:14,590 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:09:14,591 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:14" (1/1) ... [2024-11-16 03:09:14,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:09:14,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:14,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 03:09:14,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 03:09:14,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:09:14,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:09:14,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:09:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:09:14,814 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:09:14,816 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:09:16,253 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-11-16 03:09:16,253 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:09:16,274 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:09:16,274 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:09:16,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:09:16 BoogieIcfgContainer [2024-11-16 03:09:16,275 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:09:16,280 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:09:16,280 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:09:16,283 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:09:16,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:09:13" (1/3) ... [2024-11-16 03:09:16,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c173b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:09:16, skipping insertion in model container [2024-11-16 03:09:16,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:14" (2/3) ... [2024-11-16 03:09:16,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c173b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:09:16, skipping insertion in model container [2024-11-16 03:09:16,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:09:16" (3/3) ... [2024-11-16 03:09:16,285 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label33.c [2024-11-16 03:09:16,298 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:09:16,298 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:09:16,354 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:09:16,359 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;@3914e720, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:09:16,359 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:09:16,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 305 states, 303 states have (on average 1.7227722772277227) internal successors, (522), 304 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:16,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 03:09:16,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:16,376 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:16,377 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:16,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:16,381 INFO L85 PathProgramCache]: Analyzing trace with hash -948171541, now seen corresponding path program 1 times [2024-11-16 03:09:16,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:16,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681438021] [2024-11-16 03:09:16,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:16,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:17,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:09:17,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:17,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681438021] [2024-11-16 03:09:17,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681438021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:17,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:17,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:17,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264203346] [2024-11-16 03:09:17,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:17,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:17,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:17,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:17,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:17,044 INFO L87 Difference]: Start difference. First operand has 305 states, 303 states have (on average 1.7227722772277227) internal successors, (522), 304 states have internal predecessors, (522), 0 states have call successors, (0), 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 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:17,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:17,964 INFO L93 Difference]: Finished difference Result 863 states and 1504 transitions. [2024-11-16 03:09:17,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:17,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2024-11-16 03:09:17,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:17,978 INFO L225 Difference]: With dead ends: 863 [2024-11-16 03:09:17,978 INFO L226 Difference]: Without dead ends: 465 [2024-11-16 03:09:17,981 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 [2024-11-16 03:09:17,983 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 129 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:17,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 191 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 03:09:17,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-11-16 03:09:18,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 463. [2024-11-16 03:09:18,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 1.5346320346320346) internal successors, (709), 462 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:18,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 709 transitions. [2024-11-16 03:09:18,026 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 709 transitions. Word has length 161 [2024-11-16 03:09:18,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:18,026 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 709 transitions. [2024-11-16 03:09:18,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:18,027 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 709 transitions. [2024-11-16 03:09:18,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-16 03:09:18,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:18,029 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:18,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:09:18,030 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:18,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:18,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1835034971, now seen corresponding path program 1 times [2024-11-16 03:09:18,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:18,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536654537] [2024-11-16 03:09:18,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:18,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:09:18,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:18,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536654537] [2024-11-16 03:09:18,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536654537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:18,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:18,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:18,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633252528] [2024-11-16 03:09:18,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:18,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:18,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:18,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:18,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:18,207 INFO L87 Difference]: Start difference. First operand 463 states and 709 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:18,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:18,872 INFO L93 Difference]: Finished difference Result 1352 states and 2087 transitions. [2024-11-16 03:09:18,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:18,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2024-11-16 03:09:18,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:18,876 INFO L225 Difference]: With dead ends: 1352 [2024-11-16 03:09:18,876 INFO L226 Difference]: Without dead ends: 891 [2024-11-16 03:09:18,877 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 [2024-11-16 03:09:18,878 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 247 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:18,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 97 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:09:18,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-16 03:09:18,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 875. [2024-11-16 03:09:18,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 874 states have (on average 1.5091533180778032) internal successors, (1319), 874 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:18,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1319 transitions. [2024-11-16 03:09:18,910 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1319 transitions. Word has length 170 [2024-11-16 03:09:18,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:18,911 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 1319 transitions. [2024-11-16 03:09:18,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:18,911 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1319 transitions. [2024-11-16 03:09:18,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 03:09:18,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:18,915 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:18,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:09:18,915 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:18,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:18,916 INFO L85 PathProgramCache]: Analyzing trace with hash -596229568, now seen corresponding path program 1 times [2024-11-16 03:09:18,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:18,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986292371] [2024-11-16 03:09:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:18,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:19,215 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 03:09:19,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:19,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986292371] [2024-11-16 03:09:19,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986292371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:19,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660915041] [2024-11-16 03:09:19,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:19,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:19,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:19,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:09:19,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:09:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:19,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:09:19,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:19,425 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 03:09:19,427 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:19,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660915041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:19,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:19,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 03:09:19,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604503675] [2024-11-16 03:09:19,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:19,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:19,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:19,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:19,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:19,433 INFO L87 Difference]: Start difference. First operand 875 states and 1319 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:19,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:19,652 INFO L93 Difference]: Finished difference Result 2616 states and 3948 transitions. [2024-11-16 03:09:19,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:19,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 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 184 [2024-11-16 03:09:19,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:19,657 INFO L225 Difference]: With dead ends: 2616 [2024-11-16 03:09:19,658 INFO L226 Difference]: Without dead ends: 1743 [2024-11-16 03:09:19,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:19,660 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 361 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:19,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 605 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 03:09:19,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2024-11-16 03:09:19,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1738. [2024-11-16 03:09:19,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1737 states have (on average 1.5100748416810592) internal successors, (2623), 1737 states have internal predecessors, (2623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:19,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2623 transitions. [2024-11-16 03:09:19,688 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2623 transitions. Word has length 184 [2024-11-16 03:09:19,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:19,689 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 2623 transitions. [2024-11-16 03:09:19,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:19,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2623 transitions. [2024-11-16 03:09:19,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-16 03:09:19,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:19,692 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:19,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 03:09:19,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:19,893 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:19,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:19,894 INFO L85 PathProgramCache]: Analyzing trace with hash -233808990, now seen corresponding path program 1 times [2024-11-16 03:09:19,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:19,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013783184] [2024-11-16 03:09:19,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:19,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:20,089 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:09:20,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:20,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013783184] [2024-11-16 03:09:20,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013783184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:20,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:20,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:20,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808273287] [2024-11-16 03:09:20,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:20,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:20,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:20,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:20,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:20,091 INFO L87 Difference]: Start difference. First operand 1738 states and 2623 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:20,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:20,778 INFO L93 Difference]: Finished difference Result 5133 states and 7765 transitions. [2024-11-16 03:09:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:20,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2024-11-16 03:09:20,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:20,788 INFO L225 Difference]: With dead ends: 5133 [2024-11-16 03:09:20,789 INFO L226 Difference]: Without dead ends: 3397 [2024-11-16 03:09:20,793 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 [2024-11-16 03:09:20,795 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 239 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:20,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 177 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:09:20,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3397 states. [2024-11-16 03:09:20,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3397 to 3395. [2024-11-16 03:09:20,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3395 states, 3394 states have (on average 1.4354743665291692) internal successors, (4872), 3394 states have internal predecessors, (4872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:20,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3395 states to 3395 states and 4872 transitions. [2024-11-16 03:09:20,853 INFO L78 Accepts]: Start accepts. Automaton has 3395 states and 4872 transitions. Word has length 185 [2024-11-16 03:09:20,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:20,853 INFO L471 AbstractCegarLoop]: Abstraction has 3395 states and 4872 transitions. [2024-11-16 03:09:20,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:20,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3395 states and 4872 transitions. [2024-11-16 03:09:20,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-16 03:09:20,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:20,858 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:20,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:09:20,859 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:20,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:20,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1310343099, now seen corresponding path program 1 times [2024-11-16 03:09:20,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:20,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253510668] [2024-11-16 03:09:20,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:20,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:21,059 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:09:21,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:21,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253510668] [2024-11-16 03:09:21,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253510668] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:21,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426766574] [2024-11-16 03:09:21,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:21,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:21,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:21,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:09:21,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:09:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:21,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:09:21,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:21,200 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 03:09:21,200 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:21,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426766574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:21,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:21,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 03:09:21,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475870652] [2024-11-16 03:09:21,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:21,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:21,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:21,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:21,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:21,202 INFO L87 Difference]: Start difference. First operand 3395 states and 4872 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) [2024-11-16 03:09:21,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:21,891 INFO L93 Difference]: Finished difference Result 10058 states and 14446 transitions. [2024-11-16 03:09:21,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:21,892 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 186 [2024-11-16 03:09:21,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:21,909 INFO L225 Difference]: With dead ends: 10058 [2024-11-16 03:09:21,909 INFO L226 Difference]: Without dead ends: 6665 [2024-11-16 03:09:21,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:21,915 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 232 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:21,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 417 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:09:21,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6665 states. [2024-11-16 03:09:22,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6665 to 6659. [2024-11-16 03:09:22,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6659 states, 6658 states have (on average 1.2826674677080205) internal successors, (8540), 6658 states have internal predecessors, (8540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:22,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6659 states to 6659 states and 8540 transitions. [2024-11-16 03:09:22,027 INFO L78 Accepts]: Start accepts. Automaton has 6659 states and 8540 transitions. Word has length 186 [2024-11-16 03:09:22,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:22,027 INFO L471 AbstractCegarLoop]: Abstraction has 6659 states and 8540 transitions. [2024-11-16 03:09:22,027 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) [2024-11-16 03:09:22,027 INFO L276 IsEmpty]: Start isEmpty. Operand 6659 states and 8540 transitions. [2024-11-16 03:09:22,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-16 03:09:22,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:22,035 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:22,047 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 03:09:22,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:22,236 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:22,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:22,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1377591571, now seen corresponding path program 1 times [2024-11-16 03:09:22,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:22,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8318793] [2024-11-16 03:09:22,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:22,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:22,359 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-16 03:09:22,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:22,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8318793] [2024-11-16 03:09:22,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8318793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:22,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:22,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:22,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720486763] [2024-11-16 03:09:22,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:22,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:22,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:22,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:22,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:22,364 INFO L87 Difference]: Start difference. First operand 6659 states and 8540 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:22,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:22,803 INFO L93 Difference]: Finished difference Result 13252 states and 16992 transitions. [2024-11-16 03:09:22,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:22,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 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 [2024-11-16 03:09:22,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:22,824 INFO L225 Difference]: With dead ends: 13252 [2024-11-16 03:09:22,825 INFO L226 Difference]: Without dead ends: 6595 [2024-11-16 03:09:22,833 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 [2024-11-16 03:09:22,835 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 322 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:22,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 33 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:09:22,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6595 states. [2024-11-16 03:09:22,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6595 to 6595. [2024-11-16 03:09:22,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6595 states, 6594 states have (on average 1.254170457992114) internal successors, (8270), 6594 states have internal predecessors, (8270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:22,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6595 states to 6595 states and 8270 transitions. [2024-11-16 03:09:22,951 INFO L78 Accepts]: Start accepts. Automaton has 6595 states and 8270 transitions. Word has length 199 [2024-11-16 03:09:22,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:22,953 INFO L471 AbstractCegarLoop]: Abstraction has 6595 states and 8270 transitions. [2024-11-16 03:09:22,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:22,953 INFO L276 IsEmpty]: Start isEmpty. Operand 6595 states and 8270 transitions. [2024-11-16 03:09:22,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-16 03:09:22,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:22,961 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:22,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:09:22,963 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:22,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:22,963 INFO L85 PathProgramCache]: Analyzing trace with hash -2131691534, now seen corresponding path program 1 times [2024-11-16 03:09:22,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:22,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808700028] [2024-11-16 03:09:22,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:22,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:23,242 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:09:23,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:23,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808700028] [2024-11-16 03:09:23,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808700028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:23,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:23,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:23,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325968525] [2024-11-16 03:09:23,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:23,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:23,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:23,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:23,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:23,245 INFO L87 Difference]: Start difference. First operand 6595 states and 8270 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 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) [2024-11-16 03:09:23,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:23,860 INFO L93 Difference]: Finished difference Result 16476 states and 20602 transitions. [2024-11-16 03:09:23,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:23,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 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 203 [2024-11-16 03:09:23,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:23,884 INFO L225 Difference]: With dead ends: 16476 [2024-11-16 03:09:23,884 INFO L226 Difference]: Without dead ends: 9883 [2024-11-16 03:09:23,892 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 [2024-11-16 03:09:23,893 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 196 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:23,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 110 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:09:23,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9883 states. [2024-11-16 03:09:24,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9883 to 9881. [2024-11-16 03:09:24,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9881 states, 9880 states have (on average 1.238259109311741) internal successors, (12234), 9880 states have internal predecessors, (12234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:24,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9881 states to 9881 states and 12234 transitions. [2024-11-16 03:09:24,048 INFO L78 Accepts]: Start accepts. Automaton has 9881 states and 12234 transitions. Word has length 203 [2024-11-16 03:09:24,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:24,048 INFO L471 AbstractCegarLoop]: Abstraction has 9881 states and 12234 transitions. [2024-11-16 03:09:24,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 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) [2024-11-16 03:09:24,048 INFO L276 IsEmpty]: Start isEmpty. Operand 9881 states and 12234 transitions. [2024-11-16 03:09:24,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-16 03:09:24,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:24,059 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:24,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:09:24,059 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:24,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:24,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1880601599, now seen corresponding path program 1 times [2024-11-16 03:09:24,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:24,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008129075] [2024-11-16 03:09:24,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:24,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:24,440 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 49 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:09:24,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:24,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008129075] [2024-11-16 03:09:24,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008129075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:24,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498883995] [2024-11-16 03:09:24,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:24,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:24,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:24,443 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:09:24,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 03:09:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:24,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:09:24,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:24,768 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 03:09:24,769 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:24,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498883995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:24,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:24,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:09:24,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149612671] [2024-11-16 03:09:24,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:24,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:24,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:24,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:24,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:24,771 INFO L87 Difference]: Start difference. First operand 9881 states and 12234 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:25,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:25,355 INFO L93 Difference]: Finished difference Result 29592 states and 36650 transitions. [2024-11-16 03:09:25,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:25,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 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 211 [2024-11-16 03:09:25,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:25,388 INFO L225 Difference]: With dead ends: 29592 [2024-11-16 03:09:25,389 INFO L226 Difference]: Without dead ends: 19713 [2024-11-16 03:09:25,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:25,402 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 72 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:25,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 121 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:09:25,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19713 states. [2024-11-16 03:09:25,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19713 to 16013. [2024-11-16 03:09:25,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16013 states, 16012 states have (on average 1.266674993754684) internal successors, (20282), 16012 states have internal predecessors, (20282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:25,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16013 states to 16013 states and 20282 transitions. [2024-11-16 03:09:25,736 INFO L78 Accepts]: Start accepts. Automaton has 16013 states and 20282 transitions. Word has length 211 [2024-11-16 03:09:25,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:25,737 INFO L471 AbstractCegarLoop]: Abstraction has 16013 states and 20282 transitions. [2024-11-16 03:09:25,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:25,737 INFO L276 IsEmpty]: Start isEmpty. Operand 16013 states and 20282 transitions. [2024-11-16 03:09:25,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-16 03:09:25,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:25,758 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:25,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 03:09:25,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:25,961 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:25,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:25,961 INFO L85 PathProgramCache]: Analyzing trace with hash 269180091, now seen corresponding path program 1 times [2024-11-16 03:09:25,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:25,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793077497] [2024-11-16 03:09:25,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:25,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:26,144 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 03:09:26,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:26,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793077497] [2024-11-16 03:09:26,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793077497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:26,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:26,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:26,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500576072] [2024-11-16 03:09:26,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:26,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:26,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:26,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:26,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:26,146 INFO L87 Difference]: Start difference. First operand 16013 states and 20282 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:26,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:26,815 INFO L93 Difference]: Finished difference Result 41408 states and 53516 transitions. [2024-11-16 03:09:26,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:26,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 0 states have call successors, (0), 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 230 [2024-11-16 03:09:26,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:26,856 INFO L225 Difference]: With dead ends: 41408 [2024-11-16 03:09:26,857 INFO L226 Difference]: Without dead ends: 25397 [2024-11-16 03:09:26,874 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 [2024-11-16 03:09:26,875 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 175 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:26,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 152 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:09:26,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25397 states. [2024-11-16 03:09:27,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25397 to 25397. [2024-11-16 03:09:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25397 states, 25396 states have (on average 1.205544180185856) internal successors, (30616), 25396 states have internal predecessors, (30616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:27,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25397 states to 25397 states and 30616 transitions. [2024-11-16 03:09:27,339 INFO L78 Accepts]: Start accepts. Automaton has 25397 states and 30616 transitions. Word has length 230 [2024-11-16 03:09:27,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:27,339 INFO L471 AbstractCegarLoop]: Abstraction has 25397 states and 30616 transitions. [2024-11-16 03:09:27,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:27,340 INFO L276 IsEmpty]: Start isEmpty. Operand 25397 states and 30616 transitions. [2024-11-16 03:09:27,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-16 03:09:27,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:27,372 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:27,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:09:27,372 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:27,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:27,373 INFO L85 PathProgramCache]: Analyzing trace with hash 906388832, now seen corresponding path program 1 times [2024-11-16 03:09:27,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:27,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748534103] [2024-11-16 03:09:27,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:27,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:27,724 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:09:27,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:27,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748534103] [2024-11-16 03:09:27,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748534103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:27,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:27,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:09:27,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293757623] [2024-11-16 03:09:27,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:27,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:09:27,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:27,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:09:27,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:09:27,726 INFO L87 Difference]: Start difference. First operand 25397 states and 30616 transitions. Second operand has 4 states, 4 states have (on average 69.5) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:28,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:28,695 INFO L93 Difference]: Finished difference Result 60210 states and 72712 transitions. [2024-11-16 03:09:28,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:09:28,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 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 278 [2024-11-16 03:09:28,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:28,745 INFO L225 Difference]: With dead ends: 60210 [2024-11-16 03:09:28,746 INFO L226 Difference]: Without dead ends: 34815 [2024-11-16 03:09:28,772 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 [2024-11-16 03:09:28,773 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 325 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:28,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 92 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:09:28,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34815 states. [2024-11-16 03:09:29,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34815 to 34389. [2024-11-16 03:09:29,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34389 states, 34388 states have (on average 1.1863149936024195) internal successors, (40795), 34388 states have internal predecessors, (40795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:29,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34389 states to 34389 states and 40795 transitions. [2024-11-16 03:09:29,389 INFO L78 Accepts]: Start accepts. Automaton has 34389 states and 40795 transitions. Word has length 278 [2024-11-16 03:09:29,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:29,389 INFO L471 AbstractCegarLoop]: Abstraction has 34389 states and 40795 transitions. [2024-11-16 03:09:29,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:29,390 INFO L276 IsEmpty]: Start isEmpty. Operand 34389 states and 40795 transitions. [2024-11-16 03:09:29,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-16 03:09:29,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:29,418 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:29,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:09:29,419 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:29,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:29,419 INFO L85 PathProgramCache]: Analyzing trace with hash -810794558, now seen corresponding path program 1 times [2024-11-16 03:09:29,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:29,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37159843] [2024-11-16 03:09:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:29,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:29,857 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 87 proven. 7 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-16 03:09:29,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:29,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37159843] [2024-11-16 03:09:29,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37159843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:29,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383526284] [2024-11-16 03:09:29,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:29,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:29,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:29,859 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:09:29,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 03:09:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:30,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:09:30,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:30,172 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-16 03:09:30,172 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:30,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383526284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:30,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:30,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:09:30,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763302872] [2024-11-16 03:09:30,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:30,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:30,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:30,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:30,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:30,174 INFO L87 Difference]: Start difference. First operand 34389 states and 40795 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:30,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:30,967 INFO L93 Difference]: Finished difference Result 90675 states and 107969 transitions. [2024-11-16 03:09:30,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:30,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 280 [2024-11-16 03:09:30,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:31,043 INFO L225 Difference]: With dead ends: 90675 [2024-11-16 03:09:31,044 INFO L226 Difference]: Without dead ends: 56288 [2024-11-16 03:09:31,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:31,076 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 97 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:31,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 121 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:09:31,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56288 states. [2024-11-16 03:09:31,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56288 to 56278. [2024-11-16 03:09:31,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56278 states, 56277 states have (on average 1.174796097873021) internal successors, (66114), 56277 states have internal predecessors, (66114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:31,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56278 states to 56278 states and 66114 transitions. [2024-11-16 03:09:31,878 INFO L78 Accepts]: Start accepts. Automaton has 56278 states and 66114 transitions. Word has length 280 [2024-11-16 03:09:31,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:31,879 INFO L471 AbstractCegarLoop]: Abstraction has 56278 states and 66114 transitions. [2024-11-16 03:09:31,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:31,879 INFO L276 IsEmpty]: Start isEmpty. Operand 56278 states and 66114 transitions. [2024-11-16 03:09:31,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-11-16 03:09:31,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:31,911 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:31,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 03:09:32,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:32,113 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:32,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:32,113 INFO L85 PathProgramCache]: Analyzing trace with hash -430123837, now seen corresponding path program 1 times [2024-11-16 03:09:32,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:32,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005957725] [2024-11-16 03:09:32,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:32,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:32,363 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 03:09:32,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:32,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005957725] [2024-11-16 03:09:32,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005957725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:32,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:32,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:09:32,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866760254] [2024-11-16 03:09:32,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:32,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:32,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:32,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:32,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:32,365 INFO L87 Difference]: Start difference. First operand 56278 states and 66114 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:33,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:33,117 INFO L93 Difference]: Finished difference Result 105770 states and 123983 transitions. [2024-11-16 03:09:33,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:33,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 297 [2024-11-16 03:09:33,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:33,175 INFO L225 Difference]: With dead ends: 105770 [2024-11-16 03:09:33,175 INFO L226 Difference]: Without dead ends: 49494 [2024-11-16 03:09:33,209 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 [2024-11-16 03:09:33,209 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 247 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:33,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 334 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:09:33,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49494 states. [2024-11-16 03:09:34,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49494 to 49491. [2024-11-16 03:09:34,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49491 states, 49490 states have (on average 1.1305718326934735) internal successors, (55952), 49490 states have internal predecessors, (55952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:34,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49491 states to 49491 states and 55952 transitions. [2024-11-16 03:09:34,129 INFO L78 Accepts]: Start accepts. Automaton has 49491 states and 55952 transitions. Word has length 297 [2024-11-16 03:09:34,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:34,130 INFO L471 AbstractCegarLoop]: Abstraction has 49491 states and 55952 transitions. [2024-11-16 03:09:34,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:34,130 INFO L276 IsEmpty]: Start isEmpty. Operand 49491 states and 55952 transitions. [2024-11-16 03:09:34,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2024-11-16 03:09:34,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:34,171 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:34,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:09:34,171 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:34,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:34,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1760072738, now seen corresponding path program 1 times [2024-11-16 03:09:34,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:34,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623962921] [2024-11-16 03:09:34,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:34,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:34,552 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-16 03:09:34,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:34,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623962921] [2024-11-16 03:09:34,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623962921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:34,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:34,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:09:34,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678872113] [2024-11-16 03:09:34,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:34,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:34,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:34,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:34,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:34,555 INFO L87 Difference]: Start difference. First operand 49491 states and 55952 transitions. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:35,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:35,206 INFO L93 Difference]: Finished difference Result 95911 states and 108408 transitions. [2024-11-16 03:09:35,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:35,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2024-11-16 03:09:35,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:35,257 INFO L225 Difference]: With dead ends: 95911 [2024-11-16 03:09:35,257 INFO L226 Difference]: Without dead ends: 46422 [2024-11-16 03:09:35,288 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 [2024-11-16 03:09:35,288 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 225 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:35,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 312 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:09:35,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46422 states. [2024-11-16 03:09:35,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46422 to 37641. [2024-11-16 03:09:35,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37641 states, 37640 states have (on average 1.106163655685441) internal successors, (41636), 37640 states have internal predecessors, (41636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:35,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37641 states to 37641 states and 41636 transitions. [2024-11-16 03:09:35,908 INFO L78 Accepts]: Start accepts. Automaton has 37641 states and 41636 transitions. Word has length 325 [2024-11-16 03:09:35,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:35,909 INFO L471 AbstractCegarLoop]: Abstraction has 37641 states and 41636 transitions. [2024-11-16 03:09:35,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:35,909 INFO L276 IsEmpty]: Start isEmpty. Operand 37641 states and 41636 transitions. [2024-11-16 03:09:35,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-11-16 03:09:35,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:35,934 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:35,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:09:35,934 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:35,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:35,935 INFO L85 PathProgramCache]: Analyzing trace with hash -144199890, now seen corresponding path program 1 times [2024-11-16 03:09:35,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:35,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871863514] [2024-11-16 03:09:35,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:35,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:36,158 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-16 03:09:36,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:36,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871863514] [2024-11-16 03:09:36,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871863514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:36,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:36,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:36,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817913483] [2024-11-16 03:09:36,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:36,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:36,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:36,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:36,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:36,163 INFO L87 Difference]: Start difference. First operand 37641 states and 41636 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 2 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:36,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:36,701 INFO L93 Difference]: Finished difference Result 104519 states and 115367 transitions. [2024-11-16 03:09:36,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:36,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 2 states have internal predecessors, (290), 0 states have call successors, (0), 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 360 [2024-11-16 03:09:36,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:36,774 INFO L225 Difference]: With dead ends: 104519 [2024-11-16 03:09:36,774 INFO L226 Difference]: Without dead ends: 66880 [2024-11-16 03:09:36,804 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 [2024-11-16 03:09:36,804 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 205 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:36,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 456 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:09:36,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66880 states. [2024-11-16 03:09:37,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66880 to 66877. [2024-11-16 03:09:37,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66877 states, 66876 states have (on average 1.1017853938632693) internal successors, (73683), 66876 states have internal predecessors, (73683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:37,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66877 states to 66877 states and 73683 transitions. [2024-11-16 03:09:37,860 INFO L78 Accepts]: Start accepts. Automaton has 66877 states and 73683 transitions. Word has length 360 [2024-11-16 03:09:37,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:37,861 INFO L471 AbstractCegarLoop]: Abstraction has 66877 states and 73683 transitions. [2024-11-16 03:09:37,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 2 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:37,861 INFO L276 IsEmpty]: Start isEmpty. Operand 66877 states and 73683 transitions. [2024-11-16 03:09:37,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-16 03:09:37,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:37,896 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:37,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:09:37,897 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:37,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:37,897 INFO L85 PathProgramCache]: Analyzing trace with hash 823622449, now seen corresponding path program 1 times [2024-11-16 03:09:37,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:37,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579986406] [2024-11-16 03:09:37,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:37,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:38,518 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 210 proven. 7 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2024-11-16 03:09:38,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:38,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579986406] [2024-11-16 03:09:38,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579986406] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:38,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626821266] [2024-11-16 03:09:38,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:38,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:38,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:38,520 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:09:38,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 03:09:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:38,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:09:38,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:38,780 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 397 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-11-16 03:09:38,781 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:38,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626821266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:38,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:38,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:09:38,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689016877] [2024-11-16 03:09:38,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:38,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:38,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:38,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:38,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:38,783 INFO L87 Difference]: Start difference. First operand 66877 states and 73683 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:39,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:39,331 INFO L93 Difference]: Finished difference Result 176875 states and 194722 transitions. [2024-11-16 03:09:39,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:39,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 396 [2024-11-16 03:09:39,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:39,461 INFO L225 Difference]: With dead ends: 176875 [2024-11-16 03:09:39,461 INFO L226 Difference]: Without dead ends: 110000 [2024-11-16 03:09:39,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:39,514 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 286 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:39,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 814 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 03:09:39,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110000 states. [2024-11-16 03:09:41,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110000 to 109997. [2024-11-16 03:09:41,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109997 states, 109996 states have (on average 1.091348776319139) internal successors, (120044), 109996 states have internal predecessors, (120044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:41,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109997 states to 109997 states and 120044 transitions. [2024-11-16 03:09:41,399 INFO L78 Accepts]: Start accepts. Automaton has 109997 states and 120044 transitions. Word has length 396 [2024-11-16 03:09:41,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:41,399 INFO L471 AbstractCegarLoop]: Abstraction has 109997 states and 120044 transitions. [2024-11-16 03:09:41,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:41,399 INFO L276 IsEmpty]: Start isEmpty. Operand 109997 states and 120044 transitions. [2024-11-16 03:09:41,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-16 03:09:41,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:41,665 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:41,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 03:09:41,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-16 03:09:41,865 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:41,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:41,866 INFO L85 PathProgramCache]: Analyzing trace with hash -224790291, now seen corresponding path program 1 times [2024-11-16 03:09:41,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:41,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205085529] [2024-11-16 03:09:41,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:41,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 03:09:42,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:42,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205085529] [2024-11-16 03:09:42,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205085529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:42,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:42,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:09:42,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830997316] [2024-11-16 03:09:42,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:42,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:42,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:42,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:42,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:42,072 INFO L87 Difference]: Start difference. First operand 109997 states and 120044 transitions. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:42,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:42,981 INFO L93 Difference]: Finished difference Result 191180 states and 207986 transitions. [2024-11-16 03:09:42,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:42,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 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 414 [2024-11-16 03:09:42,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:42,984 INFO L225 Difference]: With dead ends: 191180 [2024-11-16 03:09:42,984 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:09:43,047 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 [2024-11-16 03:09:43,047 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 116 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:43,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 341 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:09:43,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:09:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:09:43,048 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) [2024-11-16 03:09:43,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:09:43,049 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 414 [2024-11-16 03:09:43,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:43,049 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:09:43,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:43,049 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:09:43,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:09:43,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:09:43,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 03:09:43,055 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:43,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:09:50,939 WARN L286 SmtUtils]: Spent 7.88s on a formula simplification. DAG size of input: 446 DAG size of output: 440 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-16 03:09:54,247 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:09:54,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:09:54 BoogieIcfgContainer [2024-11-16 03:09:54,256 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:09:54,257 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:09:54,257 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:09:54,257 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:09:54,257 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:09:16" (3/4) ... [2024-11-16 03:09:54,259 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:09:54,279 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 03:09:54,280 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 03:09:54,286 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:09:54,287 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:09:54,461 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:09:54,462 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:09:54,462 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:09:54,462 INFO L158 Benchmark]: Toolchain (without parser) took 40742.09ms. Allocated memory was 195.0MB in the beginning and 11.6GB in the end (delta: 11.4GB). Free memory was 160.0MB in the beginning and 10.1GB in the end (delta: -9.9GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-11-16 03:09:54,463 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:09:54,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 647.63ms. Allocated memory is still 195.0MB. Free memory was 160.0MB in the beginning and 95.0MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-11-16 03:09:54,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.90ms. Allocated memory is still 195.0MB. Free memory was 95.0MB in the beginning and 80.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-16 03:09:54,464 INFO L158 Benchmark]: Boogie Preprocessor took 121.54ms. Allocated memory is still 195.0MB. Free memory was 80.3MB in the beginning and 67.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 03:09:54,464 INFO L158 Benchmark]: IcfgBuilder took 1684.88ms. Allocated memory was 195.0MB in the beginning and 281.0MB in the end (delta: 86.0MB). Free memory was 67.8MB in the beginning and 204.6MB in the end (delta: -136.8MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2024-11-16 03:09:54,464 INFO L158 Benchmark]: TraceAbstraction took 37976.06ms. Allocated memory was 281.0MB in the beginning and 11.6GB in the end (delta: 11.3GB). Free memory was 204.6MB in the beginning and 10.1GB in the end (delta: -9.9GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2024-11-16 03:09:54,466 INFO L158 Benchmark]: Witness Printer took 205.31ms. Allocated memory is still 11.6GB. Free memory was 10.1GB in the beginning and 10.1GB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-16 03:09:54,467 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 647.63ms. Allocated memory is still 195.0MB. Free memory was 160.0MB in the beginning and 95.0MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.90ms. Allocated memory is still 195.0MB. Free memory was 95.0MB in the beginning and 80.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 121.54ms. Allocated memory is still 195.0MB. Free memory was 80.3MB in the beginning and 67.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * IcfgBuilder took 1684.88ms. Allocated memory was 195.0MB in the beginning and 281.0MB in the end (delta: 86.0MB). Free memory was 67.8MB in the beginning and 204.6MB in the end (delta: -136.8MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. * TraceAbstraction took 37976.06ms. Allocated memory was 281.0MB in the beginning and 11.6GB in the end (delta: 11.3GB). Free memory was 204.6MB in the beginning and 10.1GB in the end (delta: -9.9GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. * Witness Printer took 205.31ms. Allocated memory is still 11.6GB. Free memory was 10.1GB in the beginning and 10.1GB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. 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: 1522]: 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, 305 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.7s, OverallIterations: 16, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 11.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3474 SdHoareTripleChecker+Valid, 8.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3474 mSDsluCounter, 4373 SdHoareTripleChecker+Invalid, 6.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1030 mSDsCounter, 1631 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8354 IncrementalHoareTripleChecker+Invalid, 9985 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1631 mSolverCounterUnsat, 3343 mSDtfsCounter, 8354 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1294 GetRequests, 1267 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109997occurred in iteration=15, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 12959 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 5336 NumberOfCodeBlocks, 5336 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 5315 ConstructedInterpolants, 0 QuantifiedInterpolants, 8636 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2632 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 21 InterpolantComputations, 16 PerfectInterpolantSequences, 3547/3594 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: 1668]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 03:09:54,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE