./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem03_label30.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_label30.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 a272bf0f73a58d72dfba23a9c902bbeb665b6b76cc21acf92951a09cb8e04c47 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:09:07,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:09:07,542 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:09:07,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:09:07,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:09:07,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:09:07,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:09:07,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:09:07,580 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:09:07,581 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:09:07,583 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:09:07,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:09:07,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:09:07,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:09:07,587 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:09:07,588 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:09:07,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:09:07,589 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:09:07,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:09:07,589 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:09:07,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:09:07,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:09:07,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:09:07,594 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:09:07,594 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:09:07,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:09:07,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:09:07,595 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:09:07,595 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:09:07,596 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:09:07,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:09:07,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:09:07,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:09:07,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:09:07,597 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:09:07,597 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:09:07,598 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:09:07,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:09:07,598 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:09:07,598 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:09:07,598 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:09:07,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:09:07,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a272bf0f73a58d72dfba23a9c902bbeb665b6b76cc21acf92951a09cb8e04c47 [2024-11-16 03:09:07,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:09:07,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:09:07,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:09:07,905 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:09:07,905 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:09:07,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem03_label30.c [2024-11-16 03:09:09,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:09:09,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:09:09,791 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label30.c [2024-11-16 03:09:09,812 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6d40ef6e/96d2b7e5e0d24e2a8db55b264709c8b3/FLAG7d6a74f8d [2024-11-16 03:09:09,829 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6d40ef6e/96d2b7e5e0d24e2a8db55b264709c8b3 [2024-11-16 03:09:09,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:09:09,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:09:09,835 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:09:09,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:09:09,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:09:09,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:09:09" (1/1) ... [2024-11-16 03:09:09,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@183d8f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:09, skipping insertion in model container [2024-11-16 03:09:09,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:09:09" (1/1) ... [2024-11-16 03:09:09,903 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:09:10,495 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_label30.c[57849,57862] [2024-11-16 03:09:10,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:09:10,557 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:09:10,726 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_label30.c[57849,57862] [2024-11-16 03:09:10,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:09:10,758 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:09:10,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:10 WrapperNode [2024-11-16 03:09:10,759 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:09:10,760 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:09:10,760 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:09:10,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:09:10,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:10" (1/1) ... [2024-11-16 03:09:10,794 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:10" (1/1) ... [2024-11-16 03:09:10,935 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2024-11-16 03:09:10,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:09:10,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:09:10,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:09:10,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:09:10,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:10" (1/1) ... [2024-11-16 03:09:10,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:10" (1/1) ... [2024-11-16 03:09:10,970 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:10" (1/1) ... [2024-11-16 03:09:11,011 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 03:09:11,015 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:10" (1/1) ... [2024-11-16 03:09:11,015 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:10" (1/1) ... [2024-11-16 03:09:11,067 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:10" (1/1) ... [2024-11-16 03:09:11,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:10" (1/1) ... [2024-11-16 03:09:11,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:10" (1/1) ... [2024-11-16 03:09:11,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:10" (1/1) ... [2024-11-16 03:09:11,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:09:11,100 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:09:11,101 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:09:11,102 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:09:11,103 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:10" (1/1) ... [2024-11-16 03:09:11,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:09:11,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:11,136 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 03:09:11,139 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 03:09:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:09:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:09:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:09:11,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:09:11,269 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:09:11,271 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:09:13,069 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-11-16 03:09:13,069 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:09:13,091 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:09:13,094 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:09:13,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:09:13 BoogieIcfgContainer [2024-11-16 03:09:13,095 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:09:13,096 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:09:13,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:09:13,100 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:09:13,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:09:09" (1/3) ... [2024-11-16 03:09:13,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b61f74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:09:13, skipping insertion in model container [2024-11-16 03:09:13,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:09:10" (2/3) ... [2024-11-16 03:09:13,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b61f74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:09:13, skipping insertion in model container [2024-11-16 03:09:13,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:09:13" (3/3) ... [2024-11-16 03:09:13,103 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label30.c [2024-11-16 03:09:13,118 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:09:13,119 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:09:13,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:09:13,199 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;@122462f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:09:13,200 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:09:13,207 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 03:09:13,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 03:09:13,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:13,223 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:13,223 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:13,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:13,228 INFO L85 PathProgramCache]: Analyzing trace with hash 630247379, now seen corresponding path program 1 times [2024-11-16 03:09:13,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:13,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918258546] [2024-11-16 03:09:13,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:13,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:14,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:09:14,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:14,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918258546] [2024-11-16 03:09:14,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918258546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:14,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:14,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:14,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467307565] [2024-11-16 03:09:14,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:14,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:14,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:14,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:14,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:14,313 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 59.0) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:15,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:15,456 INFO L93 Difference]: Finished difference Result 829 states and 1465 transitions. [2024-11-16 03:09:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:15,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2024-11-16 03:09:15,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:15,471 INFO L225 Difference]: With dead ends: 829 [2024-11-16 03:09:15,471 INFO L226 Difference]: Without dead ends: 447 [2024-11-16 03:09:15,476 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 03:09:15,479 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 56 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:15,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 248 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 03:09:15,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2024-11-16 03:09:15,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2024-11-16 03:09:15,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 445 states have (on average 1.4179775280898876) internal successors, (631), 445 states have internal predecessors, (631), 0 states have call successors, (0), 0 states 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 03:09:15,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 631 transitions. [2024-11-16 03:09:15,545 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 631 transitions. Word has length 177 [2024-11-16 03:09:15,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:15,546 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 631 transitions. [2024-11-16 03:09:15,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:15,547 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 631 transitions. [2024-11-16 03:09:15,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-16 03:09:15,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:15,551 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:15,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:09:15,552 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:15,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:15,552 INFO L85 PathProgramCache]: Analyzing trace with hash -840063603, now seen corresponding path program 1 times [2024-11-16 03:09:15,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:15,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132913900] [2024-11-16 03:09:15,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:15,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:15,780 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 03:09:15,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:15,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132913900] [2024-11-16 03:09:15,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132913900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:15,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:15,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:15,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316024755] [2024-11-16 03:09:15,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:15,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:15,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:15,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:15,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:15,784 INFO L87 Difference]: Start difference. First operand 446 states and 631 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 2 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 03:09:16,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:16,617 INFO L93 Difference]: Finished difference Result 1318 states and 1872 transitions. [2024-11-16 03:09:16,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:16,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 2 states have internal predecessors, (186), 0 states have call successors, (0), 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 03:09:16,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:16,621 INFO L225 Difference]: With dead ends: 1318 [2024-11-16 03:09:16,621 INFO L226 Difference]: Without dead ends: 874 [2024-11-16 03:09:16,623 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 03:09:16,624 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 247 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:16,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 97 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:09:16,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2024-11-16 03:09:16,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 860. [2024-11-16 03:09:16,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 1.3841676367869615) internal successors, (1189), 859 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states 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 03:09:16,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1189 transitions. [2024-11-16 03:09:16,663 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1189 transitions. Word has length 186 [2024-11-16 03:09:16,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:16,663 INFO L471 AbstractCegarLoop]: Abstraction has 860 states and 1189 transitions. [2024-11-16 03:09:16,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 2 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 03:09:16,664 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1189 transitions. [2024-11-16 03:09:16,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-16 03:09:16,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:16,667 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 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 03:09:16,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:09:16,668 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:16,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:16,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1432607761, now seen corresponding path program 1 times [2024-11-16 03:09:16,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:16,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627437617] [2024-11-16 03:09:16,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:16,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:16,905 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:09:16,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:16,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627437617] [2024-11-16 03:09:16,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627437617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:16,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:16,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:16,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630560948] [2024-11-16 03:09:16,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:16,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:16,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:16,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:16,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:16,915 INFO L87 Difference]: Start difference. First operand 860 states and 1189 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:17,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:17,339 INFO L93 Difference]: Finished difference Result 1698 states and 2348 transitions. [2024-11-16 03:09:17,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:17,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2024-11-16 03:09:17,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:17,342 INFO L225 Difference]: With dead ends: 1698 [2024-11-16 03:09:17,343 INFO L226 Difference]: Without dead ends: 840 [2024-11-16 03:09:17,346 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 03:09:17,347 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 330 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 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 03:09:17,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 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 03:09:17,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2024-11-16 03:09:17,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 840. [2024-11-16 03:09:17,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 839 states have (on average 1.3432657926102503) internal successors, (1127), 839 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states 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 03:09:17,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1127 transitions. [2024-11-16 03:09:17,371 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1127 transitions. Word has length 191 [2024-11-16 03:09:17,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:17,373 INFO L471 AbstractCegarLoop]: Abstraction has 840 states and 1127 transitions. [2024-11-16 03:09:17,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:17,373 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1127 transitions. [2024-11-16 03:09:17,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-16 03:09:17,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:17,377 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:17,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:09:17,377 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:17,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:17,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1999012129, now seen corresponding path program 1 times [2024-11-16 03:09:17,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:17,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714498510] [2024-11-16 03:09:17,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:17,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:17,783 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 03:09:17,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:17,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714498510] [2024-11-16 03:09:17,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714498510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:17,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:17,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:17,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710392319] [2024-11-16 03:09:17,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:17,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:17,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:17,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:17,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:17,787 INFO L87 Difference]: Start difference. First operand 840 states and 1127 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:18,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:18,639 INFO L93 Difference]: Finished difference Result 2515 states and 3376 transitions. [2024-11-16 03:09:18,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:18,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2024-11-16 03:09:18,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:18,646 INFO L225 Difference]: With dead ends: 2515 [2024-11-16 03:09:18,646 INFO L226 Difference]: Without dead ends: 1677 [2024-11-16 03:09:18,649 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 03:09:18,650 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 287 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:18,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 55 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:09:18,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2024-11-16 03:09:18,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1674. [2024-11-16 03:09:18,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1674 states, 1673 states have (on average 1.337118947997609) internal successors, (2237), 1673 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states 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 03:09:18,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 2237 transitions. [2024-11-16 03:09:18,687 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 2237 transitions. Word has length 196 [2024-11-16 03:09:18,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:18,688 INFO L471 AbstractCegarLoop]: Abstraction has 1674 states and 2237 transitions. [2024-11-16 03:09:18,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:18,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 2237 transitions. [2024-11-16 03:09:18,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-16 03:09:18,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:18,693 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:18,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:09:18,693 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:18,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:18,694 INFO L85 PathProgramCache]: Analyzing trace with hash -102253784, now seen corresponding path program 1 times [2024-11-16 03:09:18,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:18,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258189295] [2024-11-16 03:09:18,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:18,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:18,986 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 03:09:18,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:18,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258189295] [2024-11-16 03:09:18,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258189295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:18,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900741411] [2024-11-16 03:09:18,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:18,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:18,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:18,989 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 03:09:18,993 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 03:09:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:19,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:09:19,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:19,272 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 03:09:19,273 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:19,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900741411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:19,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:19,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 03:09:19,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212510047] [2024-11-16 03:09:19,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:19,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:19,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:19,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:19,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:19,275 INFO L87 Difference]: Start difference. First operand 1674 states and 2237 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:19,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:19,530 INFO L93 Difference]: Finished difference Result 5013 states and 6702 transitions. [2024-11-16 03:09:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:19,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 200 [2024-11-16 03:09:19,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:19,542 INFO L225 Difference]: With dead ends: 5013 [2024-11-16 03:09:19,542 INFO L226 Difference]: Without dead ends: 3341 [2024-11-16 03:09:19,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 199 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 03:09:19,546 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 322 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:19,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 539 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 03:09:19,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3341 states. [2024-11-16 03:09:19,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3341 to 3335. [2024-11-16 03:09:19,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3335 states, 3334 states have (on average 1.3365326934613078) internal successors, (4456), 3334 states have internal predecessors, (4456), 0 states have call successors, (0), 0 states 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 03:09:19,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3335 states to 3335 states and 4456 transitions. [2024-11-16 03:09:19,612 INFO L78 Accepts]: Start accepts. Automaton has 3335 states and 4456 transitions. Word has length 200 [2024-11-16 03:09:19,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:19,613 INFO L471 AbstractCegarLoop]: Abstraction has 3335 states and 4456 transitions. [2024-11-16 03:09:19,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:19,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3335 states and 4456 transitions. [2024-11-16 03:09:19,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-16 03:09:19,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:19,618 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:09:19,636 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 03:09:19,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:19,820 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:19,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:19,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1072467757, now seen corresponding path program 1 times [2024-11-16 03:09:19,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:19,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296348450] [2024-11-16 03:09:19,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:19,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:20,099 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 03:09:20,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:20,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296348450] [2024-11-16 03:09:20,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296348450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:20,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605957173] [2024-11-16 03:09:20,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:20,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:20,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:20,105 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 03:09:20,107 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 03:09:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:20,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:09:20,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:20,296 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 03:09:20,299 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:20,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605957173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:20,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:20,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 03:09:20,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886780574] [2024-11-16 03:09:20,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:20,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:20,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:20,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:20,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:20,302 INFO L87 Difference]: Start difference. First operand 3335 states and 4456 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states 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 03:09:21,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:21,090 INFO L93 Difference]: Finished difference Result 8308 states and 11462 transitions. [2024-11-16 03:09:21,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:21,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 202 [2024-11-16 03:09:21,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:21,111 INFO L225 Difference]: With dead ends: 8308 [2024-11-16 03:09:21,112 INFO L226 Difference]: Without dead ends: 4975 [2024-11-16 03:09:21,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 202 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 03:09:21,120 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 213 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:21,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 369 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:09:21,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4975 states. [2024-11-16 03:09:21,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4975 to 4967. [2024-11-16 03:09:21,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4967 states, 4966 states have (on average 1.2637937978252114) internal successors, (6276), 4966 states have internal predecessors, (6276), 0 states have call successors, (0), 0 states 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 03:09:21,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4967 states to 4967 states and 6276 transitions. [2024-11-16 03:09:21,251 INFO L78 Accepts]: Start accepts. Automaton has 4967 states and 6276 transitions. Word has length 202 [2024-11-16 03:09:21,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:21,253 INFO L471 AbstractCegarLoop]: Abstraction has 4967 states and 6276 transitions. [2024-11-16 03:09:21,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states 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 03:09:21,253 INFO L276 IsEmpty]: Start isEmpty. Operand 4967 states and 6276 transitions. [2024-11-16 03:09:21,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-16 03:09:21,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:21,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:21,277 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 03:09:21,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-16 03:09:21,461 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:21,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:21,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1590957163, now seen corresponding path program 1 times [2024-11-16 03:09:21,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:21,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126123994] [2024-11-16 03:09:21,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:21,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:22,821 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:09:22,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:22,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126123994] [2024-11-16 03:09:22,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126123994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:22,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158193207] [2024-11-16 03:09:22,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:22,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:22,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:22,826 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 03:09:22,827 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 03:09:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:22,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:09:22,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:23,181 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 03:09:23,182 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:23,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158193207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:23,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:23,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:09:23,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974223979] [2024-11-16 03:09:23,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:23,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:23,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:23,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:23,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:23,184 INFO L87 Difference]: Start difference. First operand 4967 states and 6276 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states 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 03:09:24,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:24,028 INFO L93 Difference]: Finished difference Result 14849 states and 18759 transitions. [2024-11-16 03:09:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:24,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 217 [2024-11-16 03:09:24,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:24,060 INFO L225 Difference]: With dead ends: 14849 [2024-11-16 03:09:24,061 INFO L226 Difference]: Without dead ends: 9884 [2024-11-16 03:09:24,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:24,071 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 85 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:24,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 329 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:09:24,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9884 states. [2024-11-16 03:09:24,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9884 to 9878. [2024-11-16 03:09:24,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9878 states, 9877 states have (on average 1.2039080692517972) internal successors, (11891), 9877 states have internal predecessors, (11891), 0 states have call successors, (0), 0 states 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 03:09:24,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9878 states to 9878 states and 11891 transitions. [2024-11-16 03:09:24,256 INFO L78 Accepts]: Start accepts. Automaton has 9878 states and 11891 transitions. Word has length 217 [2024-11-16 03:09:24,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:24,256 INFO L471 AbstractCegarLoop]: Abstraction has 9878 states and 11891 transitions. [2024-11-16 03:09:24,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states 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 03:09:24,257 INFO L276 IsEmpty]: Start isEmpty. Operand 9878 states and 11891 transitions. [2024-11-16 03:09:24,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-16 03:09:24,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:24,266 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-16 03:09:24,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 03:09:24,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:24,468 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:24,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:24,468 INFO L85 PathProgramCache]: Analyzing trace with hash 218307151, now seen corresponding path program 1 times [2024-11-16 03:09:24,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:24,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035061565] [2024-11-16 03:09:24,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:24,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:25,727 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 77 proven. 7 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-16 03:09:25,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:25,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035061565] [2024-11-16 03:09:25,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035061565] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:25,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521036852] [2024-11-16 03:09:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:25,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:25,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:25,732 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 03:09:25,734 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 03:09:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:25,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:09:25,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:25,950 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 03:09:25,951 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:25,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521036852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:25,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:25,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:09:25,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83335876] [2024-11-16 03:09:25,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:25,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:25,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:25,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:25,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:25,953 INFO L87 Difference]: Start difference. First operand 9878 states and 11891 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states 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 03:09:26,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:26,798 INFO L93 Difference]: Finished difference Result 28740 states and 34724 transitions. [2024-11-16 03:09:26,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:26,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 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 248 [2024-11-16 03:09:26,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:26,847 INFO L225 Difference]: With dead ends: 28740 [2024-11-16 03:09:26,847 INFO L226 Difference]: Without dead ends: 18864 [2024-11-16 03:09:26,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:26,867 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 219 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:26,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 316 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:09:26,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18864 states. [2024-11-16 03:09:27,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18864 to 18854. [2024-11-16 03:09:27,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18854 states, 18853 states have (on average 1.1697342597995013) internal successors, (22053), 18853 states have internal predecessors, (22053), 0 states have call successors, (0), 0 states 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 03:09:27,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18854 states to 18854 states and 22053 transitions. [2024-11-16 03:09:27,200 INFO L78 Accepts]: Start accepts. Automaton has 18854 states and 22053 transitions. Word has length 248 [2024-11-16 03:09:27,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:27,201 INFO L471 AbstractCegarLoop]: Abstraction has 18854 states and 22053 transitions. [2024-11-16 03:09:27,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states 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 03:09:27,202 INFO L276 IsEmpty]: Start isEmpty. Operand 18854 states and 22053 transitions. [2024-11-16 03:09:27,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-16 03:09:27,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:27,218 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:09:27,237 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 03:09:27,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:27,419 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:27,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:27,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1559778422, now seen corresponding path program 1 times [2024-11-16 03:09:27,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:27,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714072962] [2024-11-16 03:09:27,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:27,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:27,696 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:09:27,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:27,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714072962] [2024-11-16 03:09:27,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714072962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:27,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:27,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:27,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281278657] [2024-11-16 03:09:27,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:27,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:27,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:27,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:27,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:27,699 INFO L87 Difference]: Start difference. First operand 18854 states and 22053 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 2 states have internal predecessors, (256), 0 states have call successors, (0), 0 states 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 03:09:28,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:28,477 INFO L93 Difference]: Finished difference Result 37716 states and 44122 transitions. [2024-11-16 03:09:28,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:28,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 2 states have internal predecessors, (256), 0 states have call successors, (0), 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 256 [2024-11-16 03:09:28,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:28,513 INFO L225 Difference]: With dead ends: 37716 [2024-11-16 03:09:28,513 INFO L226 Difference]: Without dead ends: 18864 [2024-11-16 03:09:28,536 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 03:09:28,538 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 166 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:28,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 128 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:09:28,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18864 states. [2024-11-16 03:09:28,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18864 to 18854. [2024-11-16 03:09:28,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18854 states, 18853 states have (on average 1.1438497851800775) internal successors, (21565), 18853 states have internal predecessors, (21565), 0 states have call successors, (0), 0 states 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 03:09:28,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18854 states to 18854 states and 21565 transitions. [2024-11-16 03:09:28,874 INFO L78 Accepts]: Start accepts. Automaton has 18854 states and 21565 transitions. Word has length 256 [2024-11-16 03:09:28,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:28,874 INFO L471 AbstractCegarLoop]: Abstraction has 18854 states and 21565 transitions. [2024-11-16 03:09:28,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 2 states have internal predecessors, (256), 0 states have call successors, (0), 0 states 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 03:09:28,875 INFO L276 IsEmpty]: Start isEmpty. Operand 18854 states and 21565 transitions. [2024-11-16 03:09:28,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-16 03:09:28,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:28,892 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:28,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:09:28,893 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:28,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:28,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1909829085, now seen corresponding path program 1 times [2024-11-16 03:09:28,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:28,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552457548] [2024-11-16 03:09:28,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:28,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:29,204 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 03:09:29,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:29,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552457548] [2024-11-16 03:09:29,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552457548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:29,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:29,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:09:29,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369335353] [2024-11-16 03:09:29,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:29,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:29,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:29,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:29,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:29,207 INFO L87 Difference]: Start difference. First operand 18854 states and 21565 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states 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 03:09:30,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:30,011 INFO L93 Difference]: Finished difference Result 44258 states and 50814 transitions. [2024-11-16 03:09:30,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:30,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 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 273 [2024-11-16 03:09:30,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:30,056 INFO L225 Difference]: With dead ends: 44258 [2024-11-16 03:09:30,057 INFO L226 Difference]: Without dead ends: 25406 [2024-11-16 03:09:30,078 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 03:09:30,078 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 137 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:30,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 354 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:09:30,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25406 states. [2024-11-16 03:09:30,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25406 to 25392. [2024-11-16 03:09:30,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25392 states, 25391 states have (on average 1.136505060848332) internal successors, (28857), 25391 states have internal predecessors, (28857), 0 states have call successors, (0), 0 states 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 03:09:30,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25392 states to 25392 states and 28857 transitions. [2024-11-16 03:09:30,418 INFO L78 Accepts]: Start accepts. Automaton has 25392 states and 28857 transitions. Word has length 273 [2024-11-16 03:09:30,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:30,418 INFO L471 AbstractCegarLoop]: Abstraction has 25392 states and 28857 transitions. [2024-11-16 03:09:30,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states 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 03:09:30,419 INFO L276 IsEmpty]: Start isEmpty. Operand 25392 states and 28857 transitions. [2024-11-16 03:09:30,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-16 03:09:30,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:30,441 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:09:30,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:09:30,442 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:30,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:30,442 INFO L85 PathProgramCache]: Analyzing trace with hash 301919771, now seen corresponding path program 1 times [2024-11-16 03:09:30,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:30,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045469955] [2024-11-16 03:09:30,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:30,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:30,857 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-16 03:09:30,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:30,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045469955] [2024-11-16 03:09:30,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045469955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:30,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:30,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:30,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003283187] [2024-11-16 03:09:30,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:30,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:30,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:30,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:30,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:30,862 INFO L87 Difference]: Start difference. First operand 25392 states and 28857 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 03:09:31,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:31,685 INFO L93 Difference]: Finished difference Result 67163 states and 76131 transitions. [2024-11-16 03:09:31,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:31,686 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 285 [2024-11-16 03:09:31,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:31,770 INFO L225 Difference]: With dead ends: 67163 [2024-11-16 03:09:31,770 INFO L226 Difference]: Without dead ends: 41773 [2024-11-16 03:09:31,800 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 03:09:31,802 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 203 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:31,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 137 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:09:31,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41773 states. [2024-11-16 03:09:32,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41773 to 41767. [2024-11-16 03:09:32,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41767 states, 41766 states have (on average 1.1303452569075325) internal successors, (47210), 41766 states have internal predecessors, (47210), 0 states have call successors, (0), 0 states 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 03:09:32,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41767 states to 41767 states and 47210 transitions. [2024-11-16 03:09:32,462 INFO L78 Accepts]: Start accepts. Automaton has 41767 states and 47210 transitions. Word has length 285 [2024-11-16 03:09:32,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:32,462 INFO L471 AbstractCegarLoop]: Abstraction has 41767 states and 47210 transitions. [2024-11-16 03:09:32,462 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 03:09:32,462 INFO L276 IsEmpty]: Start isEmpty. Operand 41767 states and 47210 transitions. [2024-11-16 03:09:32,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-16 03:09:32,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:32,493 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:32,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:09:32,494 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:32,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:32,494 INFO L85 PathProgramCache]: Analyzing trace with hash -934718789, now seen corresponding path program 1 times [2024-11-16 03:09:32,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:32,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910965732] [2024-11-16 03:09:32,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:32,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:32,792 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-16 03:09:32,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:32,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910965732] [2024-11-16 03:09:32,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910965732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:32,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:32,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:09:32,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596308242] [2024-11-16 03:09:32,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:32,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:09:32,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:32,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:09:32,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:09:32,795 INFO L87 Difference]: Start difference. First operand 41767 states and 47210 transitions. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states 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 03:09:33,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:33,533 INFO L93 Difference]: Finished difference Result 82919 states and 93688 transitions. [2024-11-16 03:09:33,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:09:33,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 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 286 [2024-11-16 03:09:33,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:33,590 INFO L225 Difference]: With dead ends: 82919 [2024-11-16 03:09:33,591 INFO L226 Difference]: Without dead ends: 41154 [2024-11-16 03:09:33,626 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 03:09:33,627 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 793 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:33,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 49 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:09:33,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41154 states. [2024-11-16 03:09:34,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41154 to 41139. [2024-11-16 03:09:34,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41139 states, 41138 states have (on average 1.110919344644854) internal successors, (45701), 41138 states have internal predecessors, (45701), 0 states have call successors, (0), 0 states 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 03:09:34,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41139 states to 41139 states and 45701 transitions. [2024-11-16 03:09:34,452 INFO L78 Accepts]: Start accepts. Automaton has 41139 states and 45701 transitions. Word has length 286 [2024-11-16 03:09:34,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:34,453 INFO L471 AbstractCegarLoop]: Abstraction has 41139 states and 45701 transitions. [2024-11-16 03:09:34,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states 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 03:09:34,453 INFO L276 IsEmpty]: Start isEmpty. Operand 41139 states and 45701 transitions. [2024-11-16 03:09:34,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-16 03:09:34,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:34,467 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:09:34,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:09:34,467 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:34,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:34,467 INFO L85 PathProgramCache]: Analyzing trace with hash -753189130, now seen corresponding path program 1 times [2024-11-16 03:09:34,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:34,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676145304] [2024-11-16 03:09:34,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:34,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-16 03:09:34,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:34,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676145304] [2024-11-16 03:09:34,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676145304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:34,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:34,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:34,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887240802] [2024-11-16 03:09:34,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:34,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:34,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:34,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:34,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:34,697 INFO L87 Difference]: Start difference. First operand 41139 states and 45701 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:35,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:35,615 INFO L93 Difference]: Finished difference Result 82280 states and 91408 transitions. [2024-11-16 03:09:35,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:35,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 287 [2024-11-16 03:09:35,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:35,675 INFO L225 Difference]: With dead ends: 82280 [2024-11-16 03:09:35,675 INFO L226 Difference]: Without dead ends: 41143 [2024-11-16 03:09:35,712 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 03:09:35,713 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 223 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:35,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 100 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:09:35,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41143 states. [2024-11-16 03:09:36,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41143 to 41139. [2024-11-16 03:09:36,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41139 states, 41138 states have (on average 1.0958967378093247) internal successors, (45083), 41138 states have internal predecessors, (45083), 0 states have call successors, (0), 0 states 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 03:09:36,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41139 states to 41139 states and 45083 transitions. [2024-11-16 03:09:36,380 INFO L78 Accepts]: Start accepts. Automaton has 41139 states and 45083 transitions. Word has length 287 [2024-11-16 03:09:36,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:36,380 INFO L471 AbstractCegarLoop]: Abstraction has 41139 states and 45083 transitions. [2024-11-16 03:09:36,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:36,380 INFO L276 IsEmpty]: Start isEmpty. Operand 41139 states and 45083 transitions. [2024-11-16 03:09:36,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2024-11-16 03:09:36,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:36,392 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:09:36,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:09:36,392 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:36,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:36,393 INFO L85 PathProgramCache]: Analyzing trace with hash 406928863, now seen corresponding path program 1 times [2024-11-16 03:09:36,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:36,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234504653] [2024-11-16 03:09:36,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:36,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:36,877 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:09:36,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:36,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234504653] [2024-11-16 03:09:36,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234504653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:36,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:36,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:09:36,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326548188] [2024-11-16 03:09:36,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:36,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:09:36,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:36,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:09:36,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:09:36,879 INFO L87 Difference]: Start difference. First operand 41139 states and 45083 transitions. Second operand has 4 states, 4 states have (on average 72.0) 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 03:09:37,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:37,888 INFO L93 Difference]: Finished difference Result 87207 states and 95813 transitions. [2024-11-16 03:09:37,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:09:37,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.0) 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 288 [2024-11-16 03:09:37,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:37,932 INFO L225 Difference]: With dead ends: 87207 [2024-11-16 03:09:37,933 INFO L226 Difference]: Without dead ends: 46070 [2024-11-16 03:09:37,963 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 03:09:37,963 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 343 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:37,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 89 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:09:38,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46070 states. [2024-11-16 03:09:38,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46070 to 41139. [2024-11-16 03:09:38,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41139 states, 41138 states have (on average 1.0958967378093247) internal successors, (45083), 41138 states have internal predecessors, (45083), 0 states have call successors, (0), 0 states 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 03:09:38,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41139 states to 41139 states and 45083 transitions. [2024-11-16 03:09:38,691 INFO L78 Accepts]: Start accepts. Automaton has 41139 states and 45083 transitions. Word has length 288 [2024-11-16 03:09:38,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:38,691 INFO L471 AbstractCegarLoop]: Abstraction has 41139 states and 45083 transitions. [2024-11-16 03:09:38,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.0) 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 03:09:38,692 INFO L276 IsEmpty]: Start isEmpty. Operand 41139 states and 45083 transitions. [2024-11-16 03:09:38,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-16 03:09:38,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:38,703 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:09:38,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:09:38,703 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:38,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:38,704 INFO L85 PathProgramCache]: Analyzing trace with hash 148420840, now seen corresponding path program 1 times [2024-11-16 03:09:38,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:38,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328612766] [2024-11-16 03:09:38,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:38,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:39,127 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 72 proven. 7 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-16 03:09:39,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:39,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328612766] [2024-11-16 03:09:39,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328612766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:39,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223792751] [2024-11-16 03:09:39,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:39,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:39,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:39,130 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 03:09:39,131 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 03:09:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:39,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:09:39,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:39,477 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-16 03:09:39,477 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:39,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223792751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:39,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:39,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:09:39,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582923980] [2024-11-16 03:09:39,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:39,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:39,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:39,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:39,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:09:39,479 INFO L87 Difference]: Start difference. First operand 41139 states and 45083 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states 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 03:09:40,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:40,243 INFO L93 Difference]: Finished difference Result 93316 states and 102786 transitions. [2024-11-16 03:09:40,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:40,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 293 [2024-11-16 03:09:40,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:40,304 INFO L225 Difference]: With dead ends: 93316 [2024-11-16 03:09:40,304 INFO L226 Difference]: Without dead ends: 52179 [2024-11-16 03:09:40,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 292 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 03:09:40,333 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 63 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:40,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 351 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:09:40,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52179 states. [2024-11-16 03:09:41,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52179 to 52165. [2024-11-16 03:09:41,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52165 states, 52164 states have (on average 1.099091327352197) internal successors, (57333), 52164 states have internal predecessors, (57333), 0 states have call successors, (0), 0 states 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 03:09:41,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52165 states to 52165 states and 57333 transitions. [2024-11-16 03:09:41,113 INFO L78 Accepts]: Start accepts. Automaton has 52165 states and 57333 transitions. Word has length 293 [2024-11-16 03:09:41,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:41,113 INFO L471 AbstractCegarLoop]: Abstraction has 52165 states and 57333 transitions. [2024-11-16 03:09:41,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states 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 03:09:41,114 INFO L276 IsEmpty]: Start isEmpty. Operand 52165 states and 57333 transitions. [2024-11-16 03:09:41,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-11-16 03:09:41,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:41,136 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:09:41,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 03:09:41,336 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 03:09:41,337 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:41,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:41,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1192399026, now seen corresponding path program 1 times [2024-11-16 03:09:41,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:41,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414426346] [2024-11-16 03:09:41,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:41,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:41,579 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-16 03:09:41,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:41,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414426346] [2024-11-16 03:09:41,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414426346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:41,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:09:41,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:09:41,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032345241] [2024-11-16 03:09:41,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:41,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:41,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:41,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:41,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:09:41,582 INFO L87 Difference]: Start difference. First operand 52165 states and 57333 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 2 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:42,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:42,422 INFO L93 Difference]: Finished difference Result 135212 states and 148036 transitions. [2024-11-16 03:09:42,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:42,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 2 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 303 [2024-11-16 03:09:42,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:42,513 INFO L225 Difference]: With dead ends: 135212 [2024-11-16 03:09:42,513 INFO L226 Difference]: Without dead ends: 83049 [2024-11-16 03:09:42,550 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 03:09:42,550 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 153 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:42,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 134 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:09:42,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83049 states. [2024-11-16 03:09:43,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83049 to 75697. [2024-11-16 03:09:43,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75697 states, 75696 states have (on average 1.0980368843796238) internal successors, (83117), 75696 states have internal predecessors, (83117), 0 states have call successors, (0), 0 states 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 03:09:43,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75697 states to 75697 states and 83117 transitions. [2024-11-16 03:09:43,745 INFO L78 Accepts]: Start accepts. Automaton has 75697 states and 83117 transitions. Word has length 303 [2024-11-16 03:09:43,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:43,745 INFO L471 AbstractCegarLoop]: Abstraction has 75697 states and 83117 transitions. [2024-11-16 03:09:43,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 2 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:43,745 INFO L276 IsEmpty]: Start isEmpty. Operand 75697 states and 83117 transitions. [2024-11-16 03:09:43,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-16 03:09:43,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:43,779 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2024-11-16 03:09:43,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 03:09:43,779 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:43,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:43,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1928324806, now seen corresponding path program 1 times [2024-11-16 03:09:43,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:43,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138321092] [2024-11-16 03:09:43,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:43,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:45,079 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 141 proven. 7 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-16 03:09:45,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:45,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138321092] [2024-11-16 03:09:45,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138321092] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:45,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750887668] [2024-11-16 03:09:45,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:45,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:45,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:45,082 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:09:45,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 03:09:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:45,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:09:45,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:45,266 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-16 03:09:45,266 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:45,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750887668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:45,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:45,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:09:45,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474394601] [2024-11-16 03:09:45,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:45,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:45,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:45,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:45,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:45,268 INFO L87 Difference]: Start difference. First operand 75697 states and 83117 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states 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 03:09:46,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:46,152 INFO L93 Difference]: Finished difference Result 167722 states and 185705 transitions. [2024-11-16 03:09:46,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:46,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 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 309 [2024-11-16 03:09:46,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:46,254 INFO L225 Difference]: With dead ends: 167722 [2024-11-16 03:09:46,254 INFO L226 Difference]: Without dead ends: 92027 [2024-11-16 03:09:46,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:46,308 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 221 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:46,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 137 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:09:46,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92027 states. [2024-11-16 03:09:47,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92027 to 87937. [2024-11-16 03:09:47,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87937 states, 87936 states have (on average 1.090565866084425) internal successors, (95900), 87936 states have internal predecessors, (95900), 0 states have call successors, (0), 0 states 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 03:09:47,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87937 states to 87937 states and 95900 transitions. [2024-11-16 03:09:47,704 INFO L78 Accepts]: Start accepts. Automaton has 87937 states and 95900 transitions. Word has length 309 [2024-11-16 03:09:47,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:47,704 INFO L471 AbstractCegarLoop]: Abstraction has 87937 states and 95900 transitions. [2024-11-16 03:09:47,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states 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 03:09:47,705 INFO L276 IsEmpty]: Start isEmpty. Operand 87937 states and 95900 transitions. [2024-11-16 03:09:47,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-11-16 03:09:47,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:47,727 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:47,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-16 03:09:47,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-16 03:09:47,928 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:47,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:47,928 INFO L85 PathProgramCache]: Analyzing trace with hash 773390555, now seen corresponding path program 2 times [2024-11-16 03:09:47,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:47,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215411267] [2024-11-16 03:09:47,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:47,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:49,658 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 149 proven. 7 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-16 03:09:49,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:49,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215411267] [2024-11-16 03:09:49,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215411267] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:49,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284726699] [2024-11-16 03:09:49,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 03:09:49,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:49,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:49,662 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:09:49,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 03:09:49,824 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 03:09:49,824 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 03:09:49,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:09:49,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:49,894 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-16 03:09:49,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:49,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284726699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:49,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:49,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:09:49,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508923175] [2024-11-16 03:09:49,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:49,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:49,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:49,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:49,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:49,897 INFO L87 Difference]: Start difference. First operand 87937 states and 95900 transitions. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states 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 03:09:50,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:50,795 INFO L93 Difference]: Finished difference Result 174046 states and 189797 transitions. [2024-11-16 03:09:50,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:50,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 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 311 [2024-11-16 03:09:50,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:50,923 INFO L225 Difference]: With dead ends: 174046 [2024-11-16 03:09:50,924 INFO L226 Difference]: Without dead ends: 86111 [2024-11-16 03:09:50,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:50,969 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 225 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:50,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 296 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:09:51,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86111 states. [2024-11-16 03:09:52,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86111 to 86101. [2024-11-16 03:09:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86101 states, 86100 states have (on average 1.0879558652729384) internal successors, (93673), 86100 states have internal predecessors, (93673), 0 states have call successors, (0), 0 states 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 03:09:52,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86101 states to 86101 states and 93673 transitions. [2024-11-16 03:09:52,196 INFO L78 Accepts]: Start accepts. Automaton has 86101 states and 93673 transitions. Word has length 311 [2024-11-16 03:09:52,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:52,196 INFO L471 AbstractCegarLoop]: Abstraction has 86101 states and 93673 transitions. [2024-11-16 03:09:52,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states 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 03:09:52,197 INFO L276 IsEmpty]: Start isEmpty. Operand 86101 states and 93673 transitions. [2024-11-16 03:09:52,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-16 03:09:52,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:52,228 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:09:52,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-16 03:09:52,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:52,429 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:52,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:52,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1275811955, now seen corresponding path program 1 times [2024-11-16 03:09:52,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:52,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328320499] [2024-11-16 03:09:52,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:52,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:54,033 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 199 proven. 7 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-16 03:09:54,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:54,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328320499] [2024-11-16 03:09:54,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328320499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:54,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512751807] [2024-11-16 03:09:54,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:54,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:54,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:54,035 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:09:54,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 03:09:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:54,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:09:54,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:54,333 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-16 03:09:54,334 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:54,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512751807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:54,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:54,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-16 03:09:54,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039673266] [2024-11-16 03:09:54,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:54,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:54,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:54,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:54,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:54,336 INFO L87 Difference]: Start difference. First operand 86101 states and 93673 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:55,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:09:55,345 INFO L93 Difference]: Finished difference Result 212455 states and 231485 transitions. [2024-11-16 03:09:55,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:09:55,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 354 [2024-11-16 03:09:55,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:09:55,481 INFO L225 Difference]: With dead ends: 212455 [2024-11-16 03:09:55,481 INFO L226 Difference]: Without dead ends: 126356 [2024-11-16 03:09:55,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:55,536 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 155 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:09:55,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 143 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:09:55,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126356 states. [2024-11-16 03:09:56,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126356 to 81209. [2024-11-16 03:09:56,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81209 states, 81208 states have (on average 1.102046596394444) internal successors, (89495), 81208 states have internal predecessors, (89495), 0 states have call successors, (0), 0 states 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 03:09:57,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81209 states to 81209 states and 89495 transitions. [2024-11-16 03:09:57,316 INFO L78 Accepts]: Start accepts. Automaton has 81209 states and 89495 transitions. Word has length 354 [2024-11-16 03:09:57,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:09:57,320 INFO L471 AbstractCegarLoop]: Abstraction has 81209 states and 89495 transitions. [2024-11-16 03:09:57,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:09:57,321 INFO L276 IsEmpty]: Start isEmpty. Operand 81209 states and 89495 transitions. [2024-11-16 03:09:57,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-11-16 03:09:57,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:09:57,380 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:57,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-16 03:09:57,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:57,581 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:09:57,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:09:57,582 INFO L85 PathProgramCache]: Analyzing trace with hash 611507925, now seen corresponding path program 1 times [2024-11-16 03:09:57,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:09:57,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677478431] [2024-11-16 03:09:57,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:57,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:09:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:59,353 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 171 proven. 7 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-16 03:09:59,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:09:59,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677478431] [2024-11-16 03:09:59,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677478431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:09:59,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073433359] [2024-11-16 03:09:59,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:09:59,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:09:59,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:09:59,357 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:09:59,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-16 03:09:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:09:59,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:09:59,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:09:59,790 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-16 03:09:59,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:09:59,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073433359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:09:59,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:09:59,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:09:59,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151926582] [2024-11-16 03:09:59,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:09:59,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:09:59,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:09:59,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:09:59,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:09:59,792 INFO L87 Difference]: Start difference. First operand 81209 states and 89495 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) 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 03:10:00,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:10:00,608 INFO L93 Difference]: Finished difference Result 165687 states and 182352 transitions. [2024-11-16 03:10:00,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:10:00,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) 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 398 [2024-11-16 03:10:00,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:10:00,612 INFO L225 Difference]: With dead ends: 165687 [2024-11-16 03:10:00,612 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:10:00,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:10:00,666 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 92 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:10:00,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 59 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:10:00,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:10:00,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:10:00,667 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 03:10:00,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:10:00,668 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 398 [2024-11-16 03:10:00,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:10:00,668 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:10:00,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) 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 03:10:00,669 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:10:00,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:10:00,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:10:00,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-16 03:10:00,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:10:00,875 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:10:00,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:10:09,926 WARN L286 SmtUtils]: Spent 9.04s on a formula simplification. DAG size of input: 810 DAG size of output: 802 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-16 03:10:15,821 WARN L286 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 802 DAG size of output: 38 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-16 03:10:15,827 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:10:15,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:10:15 BoogieIcfgContainer [2024-11-16 03:10:15,843 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:10:15,844 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:10:15,844 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:10:15,844 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:10:15,845 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:09:13" (3/4) ... [2024-11-16 03:10:15,847 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:10:15,873 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 03:10:15,876 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 03:10:15,878 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:10:15,880 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:10:16,097 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:10:16,098 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:10:16,098 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:10:16,099 INFO L158 Benchmark]: Toolchain (without parser) took 66265.58ms. Allocated memory was 144.7MB in the beginning and 13.4GB in the end (delta: 13.3GB). Free memory was 68.8MB in the beginning and 11.6GB in the end (delta: -11.5GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-11-16 03:10:16,099 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 144.7MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:10:16,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 923.82ms. Allocated memory is still 144.7MB. Free memory was 68.6MB in the beginning and 60.8MB in the end (delta: 7.9MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-11-16 03:10:16,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 176.43ms. Allocated memory is still 144.7MB. Free memory was 60.8MB in the beginning and 105.5MB in the end (delta: -44.8MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2024-11-16 03:10:16,100 INFO L158 Benchmark]: Boogie Preprocessor took 163.03ms. Allocated memory is still 144.7MB. Free memory was 105.5MB in the beginning and 94.2MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-16 03:10:16,100 INFO L158 Benchmark]: IcfgBuilder took 1994.28ms. Allocated memory was 144.7MB in the beginning and 218.1MB in the end (delta: 73.4MB). Free memory was 94.2MB in the beginning and 165.7MB in the end (delta: -71.5MB). Peak memory consumption was 95.2MB. Max. memory is 16.1GB. [2024-11-16 03:10:16,104 INFO L158 Benchmark]: TraceAbstraction took 62747.06ms. Allocated memory was 218.1MB in the beginning and 13.4GB in the end (delta: 13.2GB). Free memory was 164.7MB in the beginning and 11.6GB in the end (delta: -11.4GB). Peak memory consumption was 5.0GB. Max. memory is 16.1GB. [2024-11-16 03:10:16,106 INFO L158 Benchmark]: Witness Printer took 253.96ms. Allocated memory is still 13.4GB. Free memory was 11.6GB in the beginning and 11.6GB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-16 03:10:16,107 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 144.7MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 923.82ms. Allocated memory is still 144.7MB. Free memory was 68.6MB in the beginning and 60.8MB in the end (delta: 7.9MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 176.43ms. Allocated memory is still 144.7MB. Free memory was 60.8MB in the beginning and 105.5MB in the end (delta: -44.8MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 163.03ms. Allocated memory is still 144.7MB. Free memory was 105.5MB in the beginning and 94.2MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * IcfgBuilder took 1994.28ms. Allocated memory was 144.7MB in the beginning and 218.1MB in the end (delta: 73.4MB). Free memory was 94.2MB in the beginning and 165.7MB in the end (delta: -71.5MB). Peak memory consumption was 95.2MB. Max. memory is 16.1GB. * TraceAbstraction took 62747.06ms. Allocated memory was 218.1MB in the beginning and 13.4GB in the end (delta: 13.2GB). Free memory was 164.7MB in the beginning and 11.6GB in the end (delta: -11.4GB). Peak memory consumption was 5.0GB. Max. memory is 16.1GB. * Witness Printer took 253.96ms. Allocated memory is still 13.4GB. Free memory was 11.6GB in the beginning and 11.6GB 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: 1570]: 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: 47.7s, OverallIterations: 20, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 17.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4533 SdHoareTripleChecker+Valid, 12.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4533 mSDsluCounter, 3963 SdHoareTripleChecker+Invalid, 10.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 597 mSDsCounter, 2176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11358 IncrementalHoareTripleChecker+Invalid, 13534 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2176 mSolverCounterUnsat, 3366 mSDtfsCounter, 11358 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2582 GetRequests, 2536 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87937occurred in iteration=17, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.8s AutomataMinimizationTime, 20 MinimizatonAttempts, 61641 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 13.3s InterpolantComputationTime, 7792 NumberOfCodeBlocks, 7792 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 7763 ConstructedInterpolants, 0 QuantifiedInterpolants, 26148 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4972 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 29 InterpolantComputations, 20 PerfectInterpolantSequences, 4581/4656 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 03:10:16,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE