./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-83.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/hardness-nfm22/hardness_operatoramount_amount500_file-83.i -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 e31a340a728b4b13c53c35406dccb6504a466f013456cf371c6079f0f2b7f2d6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:07:39,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:07:39,798 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:07:39,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:07:39,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:07:39,827 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:07:39,827 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:07:39,827 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:07:39,828 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:07:39,831 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:07:39,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:07:39,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:07:39,832 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:07:39,832 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:07:39,832 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:07:39,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:07:39,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:07:39,833 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:07:39,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:07:39,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:07:39,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:07:39,834 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:07:39,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:07:39,834 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:07:39,834 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:07:39,835 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:07:39,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:07:39,835 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:07:39,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:07:39,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:07:39,836 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:07:39,836 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:07:39,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:07:39,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:07:39,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:07:39,837 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:07:39,837 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:07:39,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:07:39,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:07:39,843 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:07:39,843 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:07:39,844 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:07:39,844 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e31a340a728b4b13c53c35406dccb6504a466f013456cf371c6079f0f2b7f2d6 [2024-11-19 00:07:40,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:07:40,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:07:40,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:07:40,148 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:07:40,148 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:07:40,149 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-83.i [2024-11-19 00:07:41,600 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:07:41,850 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:07:41,851 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-83.i [2024-11-19 00:07:41,862 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba3c5692f/331c8cb75ad644aea0f4927e5b5e7838/FLAG55370f5b0 [2024-11-19 00:07:41,877 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba3c5692f/331c8cb75ad644aea0f4927e5b5e7838 [2024-11-19 00:07:41,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:07:41,881 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:07:41,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:07:41,882 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:07:41,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:07:41,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:07:41" (1/1) ... [2024-11-19 00:07:41,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d32c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:41, skipping insertion in model container [2024-11-19 00:07:41,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:07:41" (1/1) ... [2024-11-19 00:07:41,946 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:07:42,226 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/hardness-nfm22/hardness_operatoramount_amount500_file-83.i[916,929] [2024-11-19 00:07:42,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:07:42,709 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:07:42,730 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/hardness-nfm22/hardness_operatoramount_amount500_file-83.i[916,929] [2024-11-19 00:07:42,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:07:42,908 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:07:42,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:42 WrapperNode [2024-11-19 00:07:42,909 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:07:42,910 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:07:42,911 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:07:42,911 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:07:42,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:42" (1/1) ... [2024-11-19 00:07:42,948 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:42" (1/1) ... [2024-11-19 00:07:43,077 INFO L138 Inliner]: procedures = 26, calls = 73, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 702 [2024-11-19 00:07:43,077 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:07:43,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:07:43,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:07:43,078 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:07:43,090 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:42" (1/1) ... [2024-11-19 00:07:43,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:42" (1/1) ... [2024-11-19 00:07:43,123 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:42" (1/1) ... [2024-11-19 00:07:43,308 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]. [2024-11-19 00:07:43,309 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:42" (1/1) ... [2024-11-19 00:07:43,309 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:42" (1/1) ... [2024-11-19 00:07:43,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:42" (1/1) ... [2024-11-19 00:07:43,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:42" (1/1) ... [2024-11-19 00:07:43,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:42" (1/1) ... [2024-11-19 00:07:43,398 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:42" (1/1) ... [2024-11-19 00:07:43,415 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:07:43,417 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:07:43,418 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:07:43,418 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:07:43,419 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:42" (1/1) ... [2024-11-19 00:07:43,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:07:43,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:07:43,458 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) [2024-11-19 00:07:43,461 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 [2024-11-19 00:07:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:07:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:07:43,502 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:07:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:07:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:07:43,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:07:43,607 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:07:43,609 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:07:44,742 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-11-19 00:07:44,743 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:07:44,767 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:07:44,769 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:07:44,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:07:44 BoogieIcfgContainer [2024-11-19 00:07:44,770 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:07:44,772 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:07:44,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:07:44,776 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:07:44,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:07:41" (1/3) ... [2024-11-19 00:07:44,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641ead7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:07:44, skipping insertion in model container [2024-11-19 00:07:44,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:42" (2/3) ... [2024-11-19 00:07:44,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641ead7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:07:44, skipping insertion in model container [2024-11-19 00:07:44,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:07:44" (3/3) ... [2024-11-19 00:07:44,780 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-83.i [2024-11-19 00:07:44,797 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:07:44,797 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:07:44,874 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:07:44,885 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;@6e935cf1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:07:44,885 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:07:44,893 INFO L276 IsEmpty]: Start isEmpty. Operand has 268 states, 205 states have (on average 1.5658536585365854) internal successors, (321), 206 states have internal predecessors, (321), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-19 00:07:44,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-19 00:07:44,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:44,925 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:44,925 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:44,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:44,932 INFO L85 PathProgramCache]: Analyzing trace with hash -356447216, now seen corresponding path program 1 times [2024-11-19 00:07:44,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:44,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518251493] [2024-11-19 00:07:44,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:44,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:45,585 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 118 refuted. 0 times theorem prover too weak. 6962 trivial. 0 not checked. [2024-11-19 00:07:45,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:45,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518251493] [2024-11-19 00:07:45,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518251493] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:07:45,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716997126] [2024-11-19 00:07:45,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:45,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:07:45,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:07:45,594 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) [2024-11-19 00:07:45,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:07:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:45,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:07:45,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:07:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 6962 trivial. 0 not checked. [2024-11-19 00:07:45,952 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:07:45,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716997126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:45,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:07:45,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:07:45,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801105042] [2024-11-19 00:07:45,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:45,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:07:45,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:46,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:07:46,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:07:46,004 INFO L87 Difference]: Start difference. First operand has 268 states, 205 states have (on average 1.5658536585365854) internal successors, (321), 206 states have internal predecessors, (321), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Second operand has 2 states, 2 states have (on average 58.5) internal successors, (117), 2 states have internal predecessors, (117), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-19 00:07:46,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:46,043 INFO L93 Difference]: Finished difference Result 529 states and 936 transitions. [2024-11-19 00:07:46,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:07:46,046 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 58.5) internal successors, (117), 2 states have internal predecessors, (117), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 2 states have call successors, (60) Word has length 412 [2024-11-19 00:07:46,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:46,054 INFO L225 Difference]: With dead ends: 529 [2024-11-19 00:07:46,054 INFO L226 Difference]: Without dead ends: 264 [2024-11-19 00:07:46,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:07:46,062 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:46,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:07:46,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-19 00:07:46,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2024-11-19 00:07:46,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 202 states have (on average 1.5396039603960396) internal successors, (311), 202 states have internal predecessors, (311), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-19 00:07:46,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 431 transitions. [2024-11-19 00:07:46,149 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 431 transitions. Word has length 412 [2024-11-19 00:07:46,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:46,149 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 431 transitions. [2024-11-19 00:07:46,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 58.5) internal successors, (117), 2 states have internal predecessors, (117), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-19 00:07:46,150 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 431 transitions. [2024-11-19 00:07:46,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-19 00:07:46,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:46,164 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:46,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 00:07:46,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 00:07:46,367 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:46,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:46,369 INFO L85 PathProgramCache]: Analyzing trace with hash 518660882, now seen corresponding path program 1 times [2024-11-19 00:07:46,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:46,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980863790] [2024-11-19 00:07:46,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:46,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:46,696 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:07:46,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:46,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980863790] [2024-11-19 00:07:46,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980863790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:46,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:46,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:07:46,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256055488] [2024-11-19 00:07:46,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:46,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:07:46,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:46,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:07:46,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:07:46,705 INFO L87 Difference]: Start difference. First operand 264 states and 431 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:46,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:46,811 INFO L93 Difference]: Finished difference Result 784 states and 1283 transitions. [2024-11-19 00:07:46,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:07:46,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 412 [2024-11-19 00:07:46,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:46,819 INFO L225 Difference]: With dead ends: 784 [2024-11-19 00:07:46,819 INFO L226 Difference]: Without dead ends: 523 [2024-11-19 00:07:46,820 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 [2024-11-19 00:07:46,821 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 397 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:46,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 838 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:07:46,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-19 00:07:46,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 314. [2024-11-19 00:07:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 252 states have (on average 1.5674603174603174) internal successors, (395), 252 states have internal predecessors, (395), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-19 00:07:46,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 515 transitions. [2024-11-19 00:07:46,860 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 515 transitions. Word has length 412 [2024-11-19 00:07:46,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:46,863 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 515 transitions. [2024-11-19 00:07:46,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:46,864 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 515 transitions. [2024-11-19 00:07:46,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-19 00:07:46,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:46,868 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:46,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:07:46,868 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:46,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:46,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2060171790, now seen corresponding path program 1 times [2024-11-19 00:07:46,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:46,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754688675] [2024-11-19 00:07:46,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:46,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:47,620 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:07:47,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:47,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754688675] [2024-11-19 00:07:47,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754688675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:47,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:47,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:07:47,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151412459] [2024-11-19 00:07:47,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:47,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:07:47,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:47,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:07:47,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:07:47,626 INFO L87 Difference]: Start difference. First operand 314 states and 515 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-19 00:07:48,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:48,021 INFO L93 Difference]: Finished difference Result 937 states and 1540 transitions. [2024-11-19 00:07:48,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:07:48,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 412 [2024-11-19 00:07:48,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:48,026 INFO L225 Difference]: With dead ends: 937 [2024-11-19 00:07:48,027 INFO L226 Difference]: Without dead ends: 626 [2024-11-19 00:07:48,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:07:48,029 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 468 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:48,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 2080 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:07:48,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-19 00:07:48,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 448. [2024-11-19 00:07:48,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 325 states have (on average 1.52) internal successors, (494), 325 states have internal predecessors, (494), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-19 00:07:48,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 734 transitions. [2024-11-19 00:07:48,078 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 734 transitions. Word has length 412 [2024-11-19 00:07:48,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:48,079 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 734 transitions. [2024-11-19 00:07:48,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-19 00:07:48,079 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 734 transitions. [2024-11-19 00:07:48,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-19 00:07:48,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:48,087 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:48,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:07:48,091 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:48,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:48,092 INFO L85 PathProgramCache]: Analyzing trace with hash -973878256, now seen corresponding path program 1 times [2024-11-19 00:07:48,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:48,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529406309] [2024-11-19 00:07:48,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:48,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:48,725 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:07:48,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:48,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529406309] [2024-11-19 00:07:48,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529406309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:48,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:48,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:07:48,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845686061] [2024-11-19 00:07:48,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:48,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:07:48,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:48,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:07:48,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:07:48,730 INFO L87 Difference]: Start difference. First operand 448 states and 734 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:48,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:48,989 INFO L93 Difference]: Finished difference Result 960 states and 1578 transitions. [2024-11-19 00:07:48,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:07:48,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 412 [2024-11-19 00:07:48,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:48,998 INFO L225 Difference]: With dead ends: 960 [2024-11-19 00:07:48,999 INFO L226 Difference]: Without dead ends: 626 [2024-11-19 00:07:49,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:07:49,001 INFO L432 NwaCegarLoop]: 428 mSDtfsCounter, 462 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:49,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1270 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:07:49,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-19 00:07:49,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 448. [2024-11-19 00:07:49,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 325 states have (on average 1.5169230769230768) internal successors, (493), 325 states have internal predecessors, (493), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-19 00:07:49,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 733 transitions. [2024-11-19 00:07:49,071 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 733 transitions. Word has length 412 [2024-11-19 00:07:49,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:49,072 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 733 transitions. [2024-11-19 00:07:49,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:49,073 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 733 transitions. [2024-11-19 00:07:49,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-11-19 00:07:49,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:49,076 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:49,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:07:49,077 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:49,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:49,077 INFO L85 PathProgramCache]: Analyzing trace with hash -53941101, now seen corresponding path program 1 times [2024-11-19 00:07:49,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:49,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434510981] [2024-11-19 00:07:49,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:49,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:49,741 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:07:49,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:49,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434510981] [2024-11-19 00:07:49,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434510981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:49,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:49,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:07:49,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178697681] [2024-11-19 00:07:49,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:49,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:07:49,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:49,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:07:49,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:07:49,745 INFO L87 Difference]: Start difference. First operand 448 states and 733 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:49,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:49,824 INFO L93 Difference]: Finished difference Result 1089 states and 1787 transitions. [2024-11-19 00:07:49,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:07:49,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 413 [2024-11-19 00:07:49,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:49,831 INFO L225 Difference]: With dead ends: 1089 [2024-11-19 00:07:49,831 INFO L226 Difference]: Without dead ends: 767 [2024-11-19 00:07:49,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:07:49,835 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 309 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:49,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 834 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:07:49,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-11-19 00:07:49,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 764. [2024-11-19 00:07:49,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 580 states have (on average 1.5258620689655173) internal successors, (885), 580 states have internal predecessors, (885), 180 states have call successors, (180), 3 states have call predecessors, (180), 3 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2024-11-19 00:07:49,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1245 transitions. [2024-11-19 00:07:49,882 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1245 transitions. Word has length 413 [2024-11-19 00:07:49,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:49,884 INFO L471 AbstractCegarLoop]: Abstraction has 764 states and 1245 transitions. [2024-11-19 00:07:49,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:49,884 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1245 transitions. [2024-11-19 00:07:49,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-11-19 00:07:49,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:49,889 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:49,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:07:49,889 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:49,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:49,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1533009169, now seen corresponding path program 1 times [2024-11-19 00:07:49,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:49,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517599966] [2024-11-19 00:07:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:49,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:50,292 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:07:50,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:50,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517599966] [2024-11-19 00:07:50,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517599966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:50,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:50,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:07:50,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405201510] [2024-11-19 00:07:50,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:50,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:07:50,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:50,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:07:50,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:07:50,298 INFO L87 Difference]: Start difference. First operand 764 states and 1245 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:50,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:50,357 INFO L93 Difference]: Finished difference Result 1994 states and 3255 transitions. [2024-11-19 00:07:50,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:07:50,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 413 [2024-11-19 00:07:50,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:50,364 INFO L225 Difference]: With dead ends: 1994 [2024-11-19 00:07:50,365 INFO L226 Difference]: Without dead ends: 1379 [2024-11-19 00:07:50,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:07:50,367 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 269 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:50,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 848 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:07:50,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2024-11-19 00:07:50,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1375. [2024-11-19 00:07:50,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 1069 states have (on average 1.5369504209541627) internal successors, (1643), 1069 states have internal predecessors, (1643), 300 states have call successors, (300), 5 states have call predecessors, (300), 5 states have return successors, (300), 300 states have call predecessors, (300), 300 states have call successors, (300) [2024-11-19 00:07:50,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 2243 transitions. [2024-11-19 00:07:50,435 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 2243 transitions. Word has length 413 [2024-11-19 00:07:50,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:50,437 INFO L471 AbstractCegarLoop]: Abstraction has 1375 states and 2243 transitions. [2024-11-19 00:07:50,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:50,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 2243 transitions. [2024-11-19 00:07:50,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-19 00:07:50,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:50,442 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:50,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:07:50,443 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:50,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:50,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1523578745, now seen corresponding path program 1 times [2024-11-19 00:07:50,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:50,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265872237] [2024-11-19 00:07:50,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:50,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:51,121 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:07:51,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:51,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265872237] [2024-11-19 00:07:51,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265872237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:51,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:51,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:07:51,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097670447] [2024-11-19 00:07:51,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:51,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:07:51,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:51,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:07:51,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:07:51,124 INFO L87 Difference]: Start difference. First operand 1375 states and 2243 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:51,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:51,601 INFO L93 Difference]: Finished difference Result 3843 states and 6281 transitions. [2024-11-19 00:07:51,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:07:51,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 414 [2024-11-19 00:07:51,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:51,612 INFO L225 Difference]: With dead ends: 3843 [2024-11-19 00:07:51,612 INFO L226 Difference]: Without dead ends: 2617 [2024-11-19 00:07:51,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:07:51,616 INFO L432 NwaCegarLoop]: 644 mSDtfsCounter, 413 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 2030 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:51,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 2030 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:07:51,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2024-11-19 00:07:51,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 1587. [2024-11-19 00:07:51,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1281 states have (on average 1.5573770491803278) internal successors, (1995), 1281 states have internal predecessors, (1995), 300 states have call successors, (300), 5 states have call predecessors, (300), 5 states have return successors, (300), 300 states have call predecessors, (300), 300 states have call successors, (300) [2024-11-19 00:07:51,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2595 transitions. [2024-11-19 00:07:51,754 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2595 transitions. Word has length 414 [2024-11-19 00:07:51,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:51,755 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2595 transitions. [2024-11-19 00:07:51,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:51,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2595 transitions. [2024-11-19 00:07:51,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-19 00:07:51,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:51,763 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:51,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:07:51,764 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:51,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:51,764 INFO L85 PathProgramCache]: Analyzing trace with hash 283965739, now seen corresponding path program 1 times [2024-11-19 00:07:51,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:51,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070081886] [2024-11-19 00:07:51,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:51,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:53,114 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:07:53,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:53,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070081886] [2024-11-19 00:07:53,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070081886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:53,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:53,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:07:53,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564139464] [2024-11-19 00:07:53,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:53,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:07:53,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:53,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:07:53,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:07:53,117 INFO L87 Difference]: Start difference. First operand 1587 states and 2595 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:53,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:53,976 INFO L93 Difference]: Finished difference Result 5837 states and 9501 transitions. [2024-11-19 00:07:53,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:07:53,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 414 [2024-11-19 00:07:53,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:53,996 INFO L225 Difference]: With dead ends: 5837 [2024-11-19 00:07:53,996 INFO L226 Difference]: Without dead ends: 4399 [2024-11-19 00:07:54,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:07:54,002 INFO L432 NwaCegarLoop]: 661 mSDtfsCounter, 1433 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:54,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1433 Valid, 2101 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:07:54,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4399 states. [2024-11-19 00:07:54,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4399 to 2261. [2024-11-19 00:07:54,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 1927 states have (on average 1.5646081992734822) internal successors, (3015), 1931 states have internal predecessors, (3015), 324 states have call successors, (324), 9 states have call predecessors, (324), 9 states have return successors, (324), 320 states have call predecessors, (324), 324 states have call successors, (324) [2024-11-19 00:07:54,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3663 transitions. [2024-11-19 00:07:54,185 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3663 transitions. Word has length 414 [2024-11-19 00:07:54,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:54,186 INFO L471 AbstractCegarLoop]: Abstraction has 2261 states and 3663 transitions. [2024-11-19 00:07:54,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:54,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3663 transitions. [2024-11-19 00:07:54,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-19 00:07:54,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:54,191 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:54,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:07:54,192 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:54,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:54,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2087773523, now seen corresponding path program 1 times [2024-11-19 00:07:54,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:54,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885384412] [2024-11-19 00:07:54,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:54,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:55,700 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 6 proven. 171 refuted. 0 times theorem prover too weak. 6903 trivial. 0 not checked. [2024-11-19 00:07:55,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:55,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885384412] [2024-11-19 00:07:55,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885384412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:07:55,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028913115] [2024-11-19 00:07:55,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:55,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:07:55,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:07:55,704 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) [2024-11-19 00:07:55,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:07:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:55,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 00:07:55,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:07:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 1049 proven. 12 refuted. 0 times theorem prover too weak. 6019 trivial. 0 not checked. [2024-11-19 00:07:56,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:07:56,345 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 165 proven. 12 refuted. 0 times theorem prover too weak. 6903 trivial. 0 not checked. [2024-11-19 00:07:56,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028913115] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:07:56,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:07:56,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-19 00:07:56,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390678600] [2024-11-19 00:07:56,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:07:56,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:07:56,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:56,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:07:56,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:07:56,351 INFO L87 Difference]: Start difference. First operand 2261 states and 3663 transitions. Second operand has 10 states, 10 states have (on average 17.3) internal successors, (173), 10 states have internal predecessors, (173), 4 states have call successors, (121), 2 states have call predecessors, (121), 4 states have return successors, (123), 4 states have call predecessors, (123), 4 states have call successors, (123) [2024-11-19 00:07:57,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:57,669 INFO L93 Difference]: Finished difference Result 4064 states and 6493 transitions. [2024-11-19 00:07:57,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-19 00:07:57,670 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.3) internal successors, (173), 10 states have internal predecessors, (173), 4 states have call successors, (121), 2 states have call predecessors, (121), 4 states have return successors, (123), 4 states have call predecessors, (123), 4 states have call successors, (123) Word has length 414 [2024-11-19 00:07:57,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:57,687 INFO L225 Difference]: With dead ends: 4064 [2024-11-19 00:07:57,688 INFO L226 Difference]: Without dead ends: 1915 [2024-11-19 00:07:57,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 860 GetRequests, 824 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2024-11-19 00:07:57,696 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 1423 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:57,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 1257 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 00:07:57,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2024-11-19 00:07:57,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1895. [2024-11-19 00:07:57,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1895 states, 1538 states have (on average 1.4908972691807543) internal successors, (2293), 1542 states have internal predecessors, (2293), 324 states have call successors, (324), 32 states have call predecessors, (324), 32 states have return successors, (324), 320 states have call predecessors, (324), 324 states have call successors, (324) [2024-11-19 00:07:57,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1895 states to 1895 states and 2941 transitions. [2024-11-19 00:07:57,823 INFO L78 Accepts]: Start accepts. Automaton has 1895 states and 2941 transitions. Word has length 414 [2024-11-19 00:07:57,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:57,824 INFO L471 AbstractCegarLoop]: Abstraction has 1895 states and 2941 transitions. [2024-11-19 00:07:57,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.3) internal successors, (173), 10 states have internal predecessors, (173), 4 states have call successors, (121), 2 states have call predecessors, (121), 4 states have return successors, (123), 4 states have call predecessors, (123), 4 states have call successors, (123) [2024-11-19 00:07:57,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1895 states and 2941 transitions. [2024-11-19 00:07:57,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-19 00:07:57,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:57,829 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:57,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 00:07:58,033 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,SelfDestructingSolverStorable8 [2024-11-19 00:07:58,034 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:58,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:58,035 INFO L85 PathProgramCache]: Analyzing trace with hash 433225577, now seen corresponding path program 1 times [2024-11-19 00:07:58,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:58,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46085272] [2024-11-19 00:07:58,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:58,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:58,978 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:07:58,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:58,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46085272] [2024-11-19 00:07:58,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46085272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:58,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:58,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:07:58,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329682949] [2024-11-19 00:07:58,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:58,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:07:58,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:58,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:07:58,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:07:58,981 INFO L87 Difference]: Start difference. First operand 1895 states and 2941 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:59,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:59,667 INFO L93 Difference]: Finished difference Result 4701 states and 7236 transitions. [2024-11-19 00:07:59,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:07:59,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 414 [2024-11-19 00:07:59,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:59,680 INFO L225 Difference]: With dead ends: 4701 [2024-11-19 00:07:59,681 INFO L226 Difference]: Without dead ends: 2957 [2024-11-19 00:07:59,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:07:59,686 INFO L432 NwaCegarLoop]: 411 mSDtfsCounter, 1080 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:59,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1080 Valid, 705 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:07:59,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2024-11-19 00:07:59,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2063. [2024-11-19 00:07:59,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2063 states, 1701 states have (on average 1.5073486184597296) internal successors, (2564), 1705 states have internal predecessors, (2564), 324 states have call successors, (324), 37 states have call predecessors, (324), 37 states have return successors, (324), 320 states have call predecessors, (324), 324 states have call successors, (324) [2024-11-19 00:07:59,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2063 states to 2063 states and 3212 transitions. [2024-11-19 00:07:59,847 INFO L78 Accepts]: Start accepts. Automaton has 2063 states and 3212 transitions. Word has length 414 [2024-11-19 00:07:59,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:59,848 INFO L471 AbstractCegarLoop]: Abstraction has 2063 states and 3212 transitions. [2024-11-19 00:07:59,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:59,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2063 states and 3212 transitions. [2024-11-19 00:07:59,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-19 00:07:59,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:59,851 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:59,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:07:59,851 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:59,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:59,852 INFO L85 PathProgramCache]: Analyzing trace with hash -587842777, now seen corresponding path program 1 times [2024-11-19 00:07:59,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:59,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569536745] [2024-11-19 00:07:59,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:59,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:08:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:08:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 183 proven. 330 refuted. 0 times theorem prover too weak. 6567 trivial. 0 not checked. [2024-11-19 00:08:05,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:08:05,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569536745] [2024-11-19 00:08:05,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569536745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:08:05,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465174522] [2024-11-19 00:08:05,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:08:05,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:08:05,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:08:05,693 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) [2024-11-19 00:08:05,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 00:08:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:08:05,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 00:08:05,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:08:08,474 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 4111 proven. 420 refuted. 0 times theorem prover too weak. 2549 trivial. 0 not checked. [2024-11-19 00:08:08,474 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:08:09,402 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 78 proven. 273 refuted. 0 times theorem prover too weak. 6729 trivial. 0 not checked. [2024-11-19 00:08:09,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465174522] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:08:09,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:08:09,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 10] total 36 [2024-11-19 00:08:09,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010276891] [2024-11-19 00:08:09,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:08:09,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-19 00:08:09,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:08:09,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-19 00:08:09,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1107, Unknown=0, NotChecked=0, Total=1260 [2024-11-19 00:08:09,410 INFO L87 Difference]: Start difference. First operand 2063 states and 3212 transitions. Second operand has 36 states, 35 states have (on average 9.714285714285714) internal successors, (340), 36 states have internal predecessors, (340), 14 states have call successors, (177), 5 states have call predecessors, (177), 10 states have return successors, (178), 13 states have call predecessors, (178), 14 states have call successors, (178) [2024-11-19 00:08:20,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:08:20,500 INFO L93 Difference]: Finished difference Result 15820 states and 25072 transitions. [2024-11-19 00:08:20,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-11-19 00:08:20,500 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 9.714285714285714) internal successors, (340), 36 states have internal predecessors, (340), 14 states have call successors, (177), 5 states have call predecessors, (177), 10 states have return successors, (178), 13 states have call predecessors, (178), 14 states have call successors, (178) Word has length 414 [2024-11-19 00:08:20,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:08:20,573 INFO L225 Difference]: With dead ends: 15820 [2024-11-19 00:08:20,573 INFO L226 Difference]: Without dead ends: 13912 [2024-11-19 00:08:20,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 923 GetRequests, 824 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2689 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1920, Invalid=8180, Unknown=0, NotChecked=0, Total=10100 [2024-11-19 00:08:20,585 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 24524 mSDsluCounter, 4395 mSDsCounter, 0 mSdLazyCounter, 4989 mSolverCounterSat, 984 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24527 SdHoareTripleChecker+Valid, 4665 SdHoareTripleChecker+Invalid, 5973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 984 IncrementalHoareTripleChecker+Valid, 4989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:08:20,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24527 Valid, 4665 Invalid, 5973 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [984 Valid, 4989 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-19 00:08:20,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13912 states. [2024-11-19 00:08:20,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13912 to 2605. [2024-11-19 00:08:20,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2605 states, 2221 states have (on average 1.5002251238181) internal successors, (3332), 2227 states have internal predecessors, (3332), 328 states have call successors, (328), 55 states have call predecessors, (328), 55 states have return successors, (328), 322 states have call predecessors, (328), 328 states have call successors, (328) [2024-11-19 00:08:20,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3988 transitions. [2024-11-19 00:08:20,808 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3988 transitions. Word has length 414 [2024-11-19 00:08:20,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:08:20,809 INFO L471 AbstractCegarLoop]: Abstraction has 2605 states and 3988 transitions. [2024-11-19 00:08:20,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 9.714285714285714) internal successors, (340), 36 states have internal predecessors, (340), 14 states have call successors, (177), 5 states have call predecessors, (177), 10 states have return successors, (178), 13 states have call predecessors, (178), 14 states have call successors, (178) [2024-11-19 00:08:20,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3988 transitions. [2024-11-19 00:08:20,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-19 00:08:20,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:08:20,817 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:08:20,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 00:08:21,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:08:21,019 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:08:21,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:08:21,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1598960027, now seen corresponding path program 1 times [2024-11-19 00:08:21,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:08:21,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705509714] [2024-11-19 00:08:21,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:08:21,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:08:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:08:22,474 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 264 proven. 249 refuted. 0 times theorem prover too weak. 6567 trivial. 0 not checked. [2024-11-19 00:08:22,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:08:22,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705509714] [2024-11-19 00:08:22,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705509714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:08:22,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159857463] [2024-11-19 00:08:22,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:08:22,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:08:22,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:08:22,480 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) [2024-11-19 00:08:22,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 00:08:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:08:22,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 00:08:22,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:08:23,621 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 4859 proven. 249 refuted. 0 times theorem prover too weak. 1972 trivial. 0 not checked. [2024-11-19 00:08:23,621 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:08:24,039 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 264 proven. 258 refuted. 0 times theorem prover too weak. 6558 trivial. 0 not checked. [2024-11-19 00:08:24,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159857463] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:08:24,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:08:24,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 11] total 22 [2024-11-19 00:08:24,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704411081] [2024-11-19 00:08:24,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:08:24,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-19 00:08:24,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:08:24,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-19 00:08:24,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2024-11-19 00:08:24,043 INFO L87 Difference]: Start difference. First operand 2605 states and 3988 transitions. Second operand has 22 states, 22 states have (on average 8.863636363636363) internal successors, (195), 22 states have internal predecessors, (195), 9 states have call successors, (142), 4 states have call predecessors, (142), 10 states have return successors, (144), 9 states have call predecessors, (144), 9 states have call successors, (144) [2024-11-19 00:08:24,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:08:24,842 INFO L93 Difference]: Finished difference Result 5159 states and 7852 transitions. [2024-11-19 00:08:24,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 00:08:24,844 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.863636363636363) internal successors, (195), 22 states have internal predecessors, (195), 9 states have call successors, (142), 4 states have call predecessors, (142), 10 states have return successors, (144), 9 states have call predecessors, (144), 9 states have call successors, (144) Word has length 414 [2024-11-19 00:08:24,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:08:24,852 INFO L225 Difference]: With dead ends: 5159 [2024-11-19 00:08:24,852 INFO L226 Difference]: Without dead ends: 2711 [2024-11-19 00:08:24,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 817 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=688, Unknown=0, NotChecked=0, Total=992 [2024-11-19 00:08:24,857 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 1648 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:08:24,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 888 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:08:24,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2024-11-19 00:08:25,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2661. [2024-11-19 00:08:25,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2263 states have (on average 1.488731771984092) internal successors, (3369), 2269 states have internal predecessors, (3369), 328 states have call successors, (328), 69 states have call predecessors, (328), 69 states have return successors, (328), 322 states have call predecessors, (328), 328 states have call successors, (328) [2024-11-19 00:08:25,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 4025 transitions. [2024-11-19 00:08:25,054 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 4025 transitions. Word has length 414 [2024-11-19 00:08:25,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:08:25,054 INFO L471 AbstractCegarLoop]: Abstraction has 2661 states and 4025 transitions. [2024-11-19 00:08:25,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.863636363636363) internal successors, (195), 22 states have internal predecessors, (195), 9 states have call successors, (142), 4 states have call predecessors, (142), 10 states have return successors, (144), 9 states have call predecessors, (144), 9 states have call successors, (144) [2024-11-19 00:08:25,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 4025 transitions. [2024-11-19 00:08:25,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-11-19 00:08:25,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:08:25,058 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:08:25,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 00:08:25,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:08:25,259 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:08:25,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:08:25,259 INFO L85 PathProgramCache]: Analyzing trace with hash 178667105, now seen corresponding path program 1 times [2024-11-19 00:08:25,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:08:25,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234458741] [2024-11-19 00:08:25,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:08:25,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:08:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 00:08:25,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273844549] [2024-11-19 00:08:25,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:08:25,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:08:25,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:08:25,984 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) [2024-11-19 00:08:25,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 00:08:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:08:26,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-19 00:08:26,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:08:30,077 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 4273 proven. 450 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2024-11-19 00:08:30,077 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:08:43,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:08:43,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234458741] [2024-11-19 00:08:43,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 00:08:43,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273844549] [2024-11-19 00:08:43,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273844549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:08:43,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:08:43,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2024-11-19 00:08:43,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200103913] [2024-11-19 00:08:43,957 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 00:08:43,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-19 00:08:43,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:08:43,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-19 00:08:43,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1153, Unknown=2, NotChecked=0, Total=1332 [2024-11-19 00:08:43,959 INFO L87 Difference]: Start difference. First operand 2661 states and 4025 transitions. Second operand has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 24 states have internal predecessors, (136), 5 states have call successors, (60), 5 states have call predecessors, (60), 7 states have return successors, (60), 4 states have call predecessors, (60), 5 states have call successors, (60) [2024-11-19 00:08:52,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:08:52,833 INFO L93 Difference]: Finished difference Result 23867 states and 36466 transitions. [2024-11-19 00:08:52,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2024-11-19 00:08:52,834 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 24 states have internal predecessors, (136), 5 states have call successors, (60), 5 states have call predecessors, (60), 7 states have return successors, (60), 4 states have call predecessors, (60), 5 states have call successors, (60) Word has length 415 [2024-11-19 00:08:52,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:08:52,880 INFO L225 Difference]: With dead ends: 23867 [2024-11-19 00:08:52,880 INFO L226 Difference]: Without dead ends: 21393 [2024-11-19 00:08:52,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4509 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=2182, Invalid=12336, Unknown=2, NotChecked=0, Total=14520 [2024-11-19 00:08:52,894 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 5537 mSDsluCounter, 6008 mSDsCounter, 0 mSdLazyCounter, 4983 mSolverCounterSat, 656 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5565 SdHoareTripleChecker+Valid, 6441 SdHoareTripleChecker+Invalid, 5649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 4983 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-19 00:08:52,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5565 Valid, 6441 Invalid, 5649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 4983 Invalid, 10 Unknown, 0 Unchecked, 3.9s Time] [2024-11-19 00:08:52,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21393 states. [2024-11-19 00:08:53,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21393 to 9600. [2024-11-19 00:08:53,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9600 states, 8643 states have (on average 1.5093138956380887) internal successors, (13045), 8661 states have internal predecessors, (13045), 756 states have call successors, (756), 200 states have call predecessors, (756), 200 states have return successors, (756), 738 states have call predecessors, (756), 756 states have call successors, (756) [2024-11-19 00:08:53,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9600 states to 9600 states and 14557 transitions. [2024-11-19 00:08:53,471 INFO L78 Accepts]: Start accepts. Automaton has 9600 states and 14557 transitions. Word has length 415 [2024-11-19 00:08:53,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:08:53,471 INFO L471 AbstractCegarLoop]: Abstraction has 9600 states and 14557 transitions. [2024-11-19 00:08:53,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 24 states have internal predecessors, (136), 5 states have call successors, (60), 5 states have call predecessors, (60), 7 states have return successors, (60), 4 states have call predecessors, (60), 5 states have call successors, (60) [2024-11-19 00:08:53,472 INFO L276 IsEmpty]: Start isEmpty. Operand 9600 states and 14557 transitions. [2024-11-19 00:08:53,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-11-19 00:08:53,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:08:53,481 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:08:53,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 00:08:53,684 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,SelfDestructingSolverStorable12 [2024-11-19 00:08:53,685 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:08:53,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:08:53,689 INFO L85 PathProgramCache]: Analyzing trace with hash -639512858, now seen corresponding path program 1 times [2024-11-19 00:08:53,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:08:53,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496943520] [2024-11-19 00:08:53,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:08:53,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:08:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 00:08:54,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [371232235] [2024-11-19 00:08:54,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:08:54,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:08:54,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:08:54,456 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) [2024-11-19 00:08:54,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 00:08:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:08:54,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 77 conjuncts are in the unsatisfiable core [2024-11-19 00:08:54,869 INFO L278 TraceCheckSpWp]: Computing forward predicates...