./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-56.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-56.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 de52c08fb0028bef519c22f81b06d40dd6144270e7f5fea59e5bb117b888da23 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 12:27:08,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 12:27:08,820 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 12:27:08,826 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 12:27:08,827 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 12:27:08,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 12:27:08,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 12:27:08,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 12:27:08,862 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 12:27:08,862 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 12:27:08,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 12:27:08,863 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 12:27:08,863 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 12:27:08,864 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 12:27:08,864 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 12:27:08,865 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 12:27:08,865 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 12:27:08,865 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 12:27:08,866 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 12:27:08,866 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 12:27:08,866 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 12:27:08,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 12:27:08,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 12:27:08,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 12:27:08,871 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 12:27:08,872 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 12:27:08,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 12:27:08,872 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 12:27:08,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 12:27:08,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 12:27:08,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 12:27:08,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 12:27:08,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 12:27:08,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 12:27:08,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 12:27:08,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 12:27:08,878 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 12:27:08,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 12:27:08,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 12:27:08,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 12:27:08,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 12:27:08,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 12:27:08,880 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de52c08fb0028bef519c22f81b06d40dd6144270e7f5fea59e5bb117b888da23 [2024-10-11 12:27:09,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 12:27:09,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 12:27:09,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 12:27:09,206 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 12:27:09,206 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 12:27:09,208 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-56.i [2024-10-11 12:27:10,716 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 12:27:10,990 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 12:27:10,991 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-56.i [2024-10-11 12:27:11,006 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/10759c9c5/763f1862e7ee4ce2b1efc3df92dfa818/FLAG71524a988 [2024-10-11 12:27:11,024 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/10759c9c5/763f1862e7ee4ce2b1efc3df92dfa818 [2024-10-11 12:27:11,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 12:27:11,029 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 12:27:11,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 12:27:11,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 12:27:11,037 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 12:27:11,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:11" (1/1) ... [2024-10-11 12:27:11,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cfb6916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11, skipping insertion in model container [2024-10-11 12:27:11,039 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:11" (1/1) ... [2024-10-11 12:27:11,094 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 12:27:11,276 WARN L248 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_amount250_file-56.i[916,929] [2024-10-11 12:27:11,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 12:27:11,497 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 12:27:11,511 WARN L248 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_amount250_file-56.i[916,929] [2024-10-11 12:27:11,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 12:27:11,641 INFO L204 MainTranslator]: Completed translation [2024-10-11 12:27:11,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11 WrapperNode [2024-10-11 12:27:11,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 12:27:11,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 12:27:11,644 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 12:27:11,645 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 12:27:11,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11" (1/1) ... [2024-10-11 12:27:11,679 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11" (1/1) ... [2024-10-11 12:27:11,770 INFO L138 Inliner]: procedures = 26, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 370 [2024-10-11 12:27:11,770 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 12:27:11,771 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 12:27:11,771 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 12:27:11,771 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 12:27:11,794 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11" (1/1) ... [2024-10-11 12:27:11,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11" (1/1) ... [2024-10-11 12:27:11,812 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11" (1/1) ... [2024-10-11 12:27:11,887 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]. [2024-10-11 12:27:11,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11" (1/1) ... [2024-10-11 12:27:11,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11" (1/1) ... [2024-10-11 12:27:11,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11" (1/1) ... [2024-10-11 12:27:11,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11" (1/1) ... [2024-10-11 12:27:11,928 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11" (1/1) ... [2024-10-11 12:27:11,939 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11" (1/1) ... [2024-10-11 12:27:11,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 12:27:11,956 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 12:27:11,957 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 12:27:11,957 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 12:27:11,958 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11" (1/1) ... [2024-10-11 12:27:11,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 12:27:11,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 12:27:11,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 12:27:11,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 12:27:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 12:27:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 12:27:12,051 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 12:27:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 12:27:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 12:27:12,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 12:27:12,174 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 12:27:12,177 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 12:27:12,990 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-10-11 12:27:12,990 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 12:27:13,046 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 12:27:13,046 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 12:27:13,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:13 BoogieIcfgContainer [2024-10-11 12:27:13,047 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 12:27:13,051 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 12:27:13,052 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 12:27:13,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 12:27:13,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:27:11" (1/3) ... [2024-10-11 12:27:13,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3e5542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:13, skipping insertion in model container [2024-10-11 12:27:13,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:11" (2/3) ... [2024-10-11 12:27:13,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3e5542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:13, skipping insertion in model container [2024-10-11 12:27:13,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:13" (3/3) ... [2024-10-11 12:27:13,061 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-56.i [2024-10-11 12:27:13,079 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 12:27:13,080 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 12:27:13,147 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 12:27:13,154 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;@d5bfaf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 12:27:13,155 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 12:27:13,162 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 98 states have (on average 1.510204081632653) internal successors, (148), 99 states have internal predecessors, (148), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-11 12:27:13,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-10-11 12:27:13,212 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 12:27:13,214 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 12:27:13,215 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 12:27:13,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 12:27:13,221 INFO L85 PathProgramCache]: Analyzing trace with hash 54460279, now seen corresponding path program 1 times [2024-10-11 12:27:13,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 12:27:13,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225083610] [2024-10-11 12:27:13,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:27:13,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 12:27:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 12:27:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 12:27:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 12:27:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 12:27:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 12:27:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 12:27:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 12:27:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 12:27:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 12:27:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 12:27:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 12:27:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 12:27:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 12:27:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 12:27:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 12:27:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 12:27:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 12:27:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 12:27:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 12:27:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 12:27:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 12:27:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 12:27:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 12:27:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 12:27:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 12:27:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 12:27:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 12:27:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 12:27:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 12:27:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 12:27:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 12:27:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 12:27:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 12:27:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:13,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-11 12:27:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 12:27:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-11 12:27:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-11 12:27:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-11 12:27:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-11 12:27:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-11 12:27:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-11 12:27:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 12:27:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 12:27:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-11 12:27:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-11 12:27:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-11 12:27:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 12:27:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-10-11 12:27:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-10-11 12:27:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-10-11 12:27:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-10-11 12:27:14,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 12:27:14,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225083610] [2024-10-11 12:27:14,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225083610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 12:27:14,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 12:27:14,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 12:27:14,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404077543] [2024-10-11 12:27:14,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 12:27:14,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 12:27:14,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 12:27:14,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 12:27:14,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 12:27:14,152 INFO L87 Difference]: Start difference. First operand has 151 states, 98 states have (on average 1.510204081632653) internal successors, (148), 99 states have internal predecessors, (148), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2024-10-11 12:27:14,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 12:27:14,228 INFO L93 Difference]: Finished difference Result 296 states and 538 transitions. [2024-10-11 12:27:14,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 12:27:14,236 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) Word has length 320 [2024-10-11 12:27:14,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 12:27:14,246 INFO L225 Difference]: With dead ends: 296 [2024-10-11 12:27:14,246 INFO L226 Difference]: Without dead ends: 146 [2024-10-11 12:27:14,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 12:27:14,255 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 12:27:14,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 233 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 12:27:14,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-10-11 12:27:14,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-10-11 12:27:14,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 94 states have (on average 1.446808510638298) internal successors, (136), 94 states have internal predecessors, (136), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-11 12:27:14,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 236 transitions. [2024-10-11 12:27:14,330 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 236 transitions. Word has length 320 [2024-10-11 12:27:14,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 12:27:14,332 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 236 transitions. [2024-10-11 12:27:14,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2024-10-11 12:27:14,333 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 236 transitions. [2024-10-11 12:27:14,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-10-11 12:27:14,342 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 12:27:14,342 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 12:27:14,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 12:27:14,343 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 12:27:14,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 12:27:14,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1833814173, now seen corresponding path program 1 times [2024-10-11 12:27:14,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 12:27:14,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120320848] [2024-10-11 12:27:14,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:27:14,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 12:27:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 12:27:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 12:27:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 12:27:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 12:27:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 12:27:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 12:27:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 12:27:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 12:27:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 12:27:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 12:27:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 12:27:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 12:27:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 12:27:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 12:27:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 12:27:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 12:27:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 12:27:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 12:27:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 12:27:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 12:27:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 12:27:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 12:27:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 12:27:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 12:27:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 12:27:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 12:27:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 12:27:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 12:27:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 12:27:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 12:27:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 12:27:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 12:27:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 12:27:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-11 12:27:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 12:27:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-11 12:27:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-11 12:27:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-11 12:27:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-11 12:27:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-11 12:27:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-11 12:27:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 12:27:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 12:27:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-11 12:27:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-11 12:27:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-11 12:27:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 12:27:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-10-11 12:27:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-10-11 12:27:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-10-11 12:27:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:14,910 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-10-11 12:27:14,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 12:27:14,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120320848] [2024-10-11 12:27:14,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120320848] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 12:27:14,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 12:27:14,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 12:27:14,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108557766] [2024-10-11 12:27:14,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 12:27:14,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 12:27:14,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 12:27:14,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 12:27:14,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 12:27:14,919 INFO L87 Difference]: Start difference. First operand 146 states and 236 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-10-11 12:27:15,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 12:27:15,166 INFO L93 Difference]: Finished difference Result 430 states and 695 transitions. [2024-10-11 12:27:15,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 12:27:15,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 320 [2024-10-11 12:27:15,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 12:27:15,172 INFO L225 Difference]: With dead ends: 430 [2024-10-11 12:27:15,172 INFO L226 Difference]: Without dead ends: 285 [2024-10-11 12:27:15,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 12:27:15,175 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 215 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 12:27:15,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 611 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 12:27:15,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-10-11 12:27:15,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 186. [2024-10-11 12:27:15,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 134 states have (on average 1.5) internal successors, (201), 134 states have internal predecessors, (201), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-11 12:27:15,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 301 transitions. [2024-10-11 12:27:15,211 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 301 transitions. Word has length 320 [2024-10-11 12:27:15,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 12:27:15,215 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 301 transitions. [2024-10-11 12:27:15,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-10-11 12:27:15,217 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 301 transitions. [2024-10-11 12:27:15,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-10-11 12:27:15,225 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 12:27:15,225 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 12:27:15,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 12:27:15,226 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 12:27:15,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 12:27:15,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1617147621, now seen corresponding path program 1 times [2024-10-11 12:27:15,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 12:27:15,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676936607] [2024-10-11 12:27:15,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:27:15,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 12:27:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 12:27:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 12:27:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 12:27:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 12:27:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 12:27:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 12:27:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 12:27:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 12:27:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 12:27:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 12:27:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 12:27:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 12:27:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 12:27:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 12:27:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 12:27:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 12:27:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 12:27:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 12:27:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 12:27:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 12:27:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 12:27:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 12:27:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 12:27:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 12:27:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 12:27:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 12:27:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 12:27:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 12:27:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 12:27:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 12:27:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 12:27:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 12:27:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 12:27:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-11 12:27:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 12:27:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-11 12:27:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-11 12:27:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-11 12:27:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-11 12:27:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-11 12:27:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-11 12:27:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 12:27:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 12:27:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-11 12:27:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-11 12:27:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-11 12:27:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 12:27:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-10-11 12:27:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-10-11 12:27:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-10-11 12:27:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:15,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-10-11 12:27:15,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 12:27:15,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676936607] [2024-10-11 12:27:15,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676936607] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 12:27:15,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 12:27:15,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 12:27:15,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286042099] [2024-10-11 12:27:15,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 12:27:15,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 12:27:15,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 12:27:15,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 12:27:15,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 12:27:15,631 INFO L87 Difference]: Start difference. First operand 186 states and 301 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-10-11 12:27:15,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 12:27:15,741 INFO L93 Difference]: Finished difference Result 552 states and 893 transitions. [2024-10-11 12:27:15,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 12:27:15,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 320 [2024-10-11 12:27:15,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 12:27:15,750 INFO L225 Difference]: With dead ends: 552 [2024-10-11 12:27:15,752 INFO L226 Difference]: Without dead ends: 367 [2024-10-11 12:27:15,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 12:27:15,754 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 210 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 12:27:15,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 442 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 12:27:15,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-10-11 12:27:15,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 243. [2024-10-11 12:27:15,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 191 states have (on average 1.5287958115183247) internal successors, (292), 191 states have internal predecessors, (292), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-11 12:27:15,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 392 transitions. [2024-10-11 12:27:15,797 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 392 transitions. Word has length 320 [2024-10-11 12:27:15,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 12:27:15,799 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 392 transitions. [2024-10-11 12:27:15,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-10-11 12:27:15,800 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 392 transitions. [2024-10-11 12:27:15,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-10-11 12:27:15,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 12:27:15,805 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 12:27:15,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 12:27:15,806 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 12:27:15,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 12:27:15,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1781456114, now seen corresponding path program 1 times [2024-10-11 12:27:15,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 12:27:15,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141068914] [2024-10-11 12:27:15,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:27:15,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 12:27:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 12:27:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 12:27:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 12:27:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 12:27:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 12:27:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 12:27:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 12:27:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 12:27:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 12:27:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 12:27:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 12:27:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 12:27:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 12:27:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 12:27:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 12:27:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 12:27:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 12:27:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 12:27:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 12:27:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 12:27:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 12:27:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 12:27:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 12:27:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 12:27:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 12:27:17,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 12:27:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 12:27:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 12:27:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 12:27:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 12:27:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 12:27:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 12:27:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 12:27:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-11 12:27:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 12:27:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-11 12:27:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-11 12:27:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-11 12:27:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-11 12:27:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-11 12:27:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-11 12:27:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 12:27:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 12:27:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-11 12:27:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-11 12:27:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-11 12:27:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 12:27:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-10-11 12:27:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-10-11 12:27:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-10-11 12:27:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:17,373 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-10-11 12:27:17,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 12:27:17,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141068914] [2024-10-11 12:27:17,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141068914] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 12:27:17,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 12:27:17,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 12:27:17,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471531809] [2024-10-11 12:27:17,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 12:27:17,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 12:27:17,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 12:27:17,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 12:27:17,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-11 12:27:17,379 INFO L87 Difference]: Start difference. First operand 243 states and 392 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-10-11 12:27:18,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 12:27:18,023 INFO L93 Difference]: Finished difference Result 780 states and 1249 transitions. [2024-10-11 12:27:18,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 12:27:18,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 321 [2024-10-11 12:27:18,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 12:27:18,031 INFO L225 Difference]: With dead ends: 780 [2024-10-11 12:27:18,034 INFO L226 Difference]: Without dead ends: 538 [2024-10-11 12:27:18,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-11 12:27:18,037 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 451 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 12:27:18,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 700 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 12:27:18,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-10-11 12:27:18,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 459. [2024-10-11 12:27:18,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 370 states have (on average 1.527027027027027) internal successors, (565), 371 states have internal predecessors, (565), 86 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-11 12:27:18,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 737 transitions. [2024-10-11 12:27:18,109 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 737 transitions. Word has length 321 [2024-10-11 12:27:18,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 12:27:18,114 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 737 transitions. [2024-10-11 12:27:18,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-10-11 12:27:18,115 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 737 transitions. [2024-10-11 12:27:18,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-10-11 12:27:18,121 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 12:27:18,122 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 12:27:18,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 12:27:18,122 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 12:27:18,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 12:27:18,123 INFO L85 PathProgramCache]: Analyzing trace with hash -462527184, now seen corresponding path program 1 times [2024-10-11 12:27:18,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 12:27:18,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256725836] [2024-10-11 12:27:18,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:27:18,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 12:27:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 12:27:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 12:27:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 12:27:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 12:27:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 12:27:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 12:27:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 12:27:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 12:27:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 12:27:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 12:27:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 12:27:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 12:27:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 12:27:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 12:27:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 12:27:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 12:27:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 12:27:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 12:27:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 12:27:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 12:27:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 12:27:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 12:27:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 12:27:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 12:27:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 12:27:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 12:27:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 12:27:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 12:27:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 12:27:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 12:27:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 12:27:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 12:27:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 12:27:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-11 12:27:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 12:27:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-11 12:27:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-11 12:27:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-11 12:27:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-11 12:27:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-11 12:27:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-11 12:27:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 12:27:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 12:27:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-11 12:27:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-11 12:27:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-11 12:27:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 12:27:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-10-11 12:27:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-10-11 12:27:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-10-11 12:27:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:20,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-10-11 12:27:20,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 12:27:20,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256725836] [2024-10-11 12:27:20,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256725836] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 12:27:20,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 12:27:20,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 12:27:20,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637990023] [2024-10-11 12:27:20,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 12:27:20,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 12:27:20,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 12:27:20,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 12:27:20,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 12:27:20,329 INFO L87 Difference]: Start difference. First operand 459 states and 737 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-10-11 12:27:24,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-11 12:27:26,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 12:27:26,267 INFO L93 Difference]: Finished difference Result 2016 states and 3232 transitions. [2024-10-11 12:27:26,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 12:27:26,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 321 [2024-10-11 12:27:26,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 12:27:26,281 INFO L225 Difference]: With dead ends: 2016 [2024-10-11 12:27:26,281 INFO L226 Difference]: Without dead ends: 1558 [2024-10-11 12:27:26,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-11 12:27:26,285 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 597 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-10-11 12:27:26,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1404 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 752 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2024-10-11 12:27:26,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2024-10-11 12:27:26,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1540. [2024-10-11 12:27:26,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1187 states have (on average 1.5054759898904801) internal successors, (1787), 1191 states have internal predecessors, (1787), 344 states have call successors, (344), 8 states have call predecessors, (344), 8 states have return successors, (344), 340 states have call predecessors, (344), 344 states have call successors, (344) [2024-10-11 12:27:26,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2475 transitions. [2024-10-11 12:27:26,514 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2475 transitions. Word has length 321 [2024-10-11 12:27:26,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 12:27:26,515 INFO L471 AbstractCegarLoop]: Abstraction has 1540 states and 2475 transitions. [2024-10-11 12:27:26,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-10-11 12:27:26,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2475 transitions. [2024-10-11 12:27:26,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-10-11 12:27:26,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 12:27:26,524 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 12:27:26,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 12:27:26,524 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 12:27:26,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 12:27:26,525 INFO L85 PathProgramCache]: Analyzing trace with hash 801032252, now seen corresponding path program 1 times [2024-10-11 12:27:26,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 12:27:26,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222034805] [2024-10-11 12:27:26,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:27:26,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 12:27:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 12:27:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 12:27:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 12:27:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 12:27:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 12:27:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 12:27:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 12:27:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 12:27:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 12:27:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 12:27:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 12:27:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 12:27:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 12:27:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 12:27:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 12:27:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 12:27:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 12:27:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 12:27:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 12:27:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 12:27:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 12:27:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 12:27:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 12:27:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 12:27:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 12:27:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 12:27:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 12:27:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 12:27:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 12:27:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 12:27:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 12:27:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 12:27:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 12:27:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-11 12:27:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 12:27:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-11 12:27:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-11 12:27:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-11 12:27:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-11 12:27:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-11 12:27:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-11 12:27:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 12:27:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 12:27:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-11 12:27:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-11 12:27:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-11 12:27:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 12:27:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-10-11 12:27:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-10-11 12:27:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-10-11 12:27:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:30,786 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-10-11 12:27:30,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 12:27:30,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222034805] [2024-10-11 12:27:30,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222034805] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 12:27:30,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 12:27:30,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 12:27:30,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128576878] [2024-10-11 12:27:30,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 12:27:30,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 12:27:30,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 12:27:30,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 12:27:30,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 12:27:30,790 INFO L87 Difference]: Start difference. First operand 1540 states and 2475 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-10-11 12:27:32,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 12:27:32,616 INFO L93 Difference]: Finished difference Result 3809 states and 6119 transitions. [2024-10-11 12:27:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 12:27:32,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 321 [2024-10-11 12:27:32,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 12:27:32,633 INFO L225 Difference]: With dead ends: 3809 [2024-10-11 12:27:32,633 INFO L226 Difference]: Without dead ends: 2270 [2024-10-11 12:27:32,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 12:27:32,643 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 353 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 12:27:32,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 1211 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 12:27:32,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2270 states. [2024-10-11 12:27:32,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2270 to 2258. [2024-10-11 12:27:32,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2258 states, 1729 states have (on average 1.5020242914979758) internal successors, (2597), 1735 states have internal predecessors, (2597), 516 states have call successors, (516), 12 states have call predecessors, (516), 12 states have return successors, (516), 510 states have call predecessors, (516), 516 states have call successors, (516) [2024-10-11 12:27:32,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2258 states to 2258 states and 3629 transitions. [2024-10-11 12:27:32,957 INFO L78 Accepts]: Start accepts. Automaton has 2258 states and 3629 transitions. Word has length 321 [2024-10-11 12:27:32,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 12:27:32,958 INFO L471 AbstractCegarLoop]: Abstraction has 2258 states and 3629 transitions. [2024-10-11 12:27:32,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-10-11 12:27:32,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2258 states and 3629 transitions. [2024-10-11 12:27:32,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-10-11 12:27:32,964 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 12:27:32,964 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 12:27:32,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 12:27:32,964 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 12:27:32,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 12:27:32,965 INFO L85 PathProgramCache]: Analyzing trace with hash -63911052, now seen corresponding path program 1 times [2024-10-11 12:27:32,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 12:27:32,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290397582] [2024-10-11 12:27:32,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:27:32,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 12:27:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 12:27:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 12:27:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 12:27:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 12:27:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 12:27:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 12:27:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 12:27:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 12:27:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 12:27:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 12:27:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 12:27:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 12:27:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 12:27:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 12:27:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 12:27:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 12:27:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 12:27:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 12:27:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 12:27:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 12:27:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 12:27:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 12:27:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 12:27:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 12:27:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 12:27:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 12:27:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 12:27:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 12:27:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 12:27:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 12:27:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 12:27:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 12:27:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 12:27:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-11 12:27:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 12:27:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-11 12:27:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-11 12:27:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-11 12:27:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-11 12:27:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-11 12:27:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-11 12:27:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 12:27:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 12:27:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-11 12:27:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-11 12:27:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-11 12:27:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 12:27:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-10-11 12:27:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-10-11 12:27:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-10-11 12:27:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:33,651 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-10-11 12:27:33,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 12:27:33,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290397582] [2024-10-11 12:27:33,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290397582] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 12:27:33,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 12:27:33,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 12:27:33,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750234107] [2024-10-11 12:27:33,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 12:27:33,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 12:27:33,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 12:27:33,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 12:27:33,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 12:27:33,655 INFO L87 Difference]: Start difference. First operand 2258 states and 3629 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-10-11 12:27:34,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 12:27:34,844 INFO L93 Difference]: Finished difference Result 4505 states and 7218 transitions. [2024-10-11 12:27:34,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 12:27:34,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 321 [2024-10-11 12:27:34,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 12:27:34,862 INFO L225 Difference]: With dead ends: 4505 [2024-10-11 12:27:34,862 INFO L226 Difference]: Without dead ends: 2248 [2024-10-11 12:27:34,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 12:27:34,874 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 534 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 12:27:34,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 799 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 12:27:34,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2024-10-11 12:27:35,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2149. [2024-10-11 12:27:35,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2149 states, 1554 states have (on average 1.4517374517374517) internal successors, (2256), 1560 states have internal predecessors, (2256), 576 states have call successors, (576), 18 states have call predecessors, (576), 18 states have return successors, (576), 570 states have call predecessors, (576), 576 states have call successors, (576) [2024-10-11 12:27:35,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2149 states to 2149 states and 3408 transitions. [2024-10-11 12:27:35,165 INFO L78 Accepts]: Start accepts. Automaton has 2149 states and 3408 transitions. Word has length 321 [2024-10-11 12:27:35,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 12:27:35,167 INFO L471 AbstractCegarLoop]: Abstraction has 2149 states and 3408 transitions. [2024-10-11 12:27:35,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-10-11 12:27:35,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2149 states and 3408 transitions. [2024-10-11 12:27:35,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-10-11 12:27:35,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 12:27:35,173 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 12:27:35,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 12:27:35,174 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 12:27:35,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 12:27:35,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1800465219, now seen corresponding path program 1 times [2024-10-11 12:27:35,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 12:27:35,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144184966] [2024-10-11 12:27:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:27:35,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 12:27:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 12:27:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 12:27:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 12:27:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 12:27:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 12:27:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 12:27:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 12:27:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 12:27:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 12:27:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 12:27:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 12:27:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 12:27:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 12:27:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 12:27:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 12:27:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 12:27:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 12:27:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 12:27:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 12:27:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 12:27:36,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 12:27:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 12:27:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 12:27:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 12:27:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 12:27:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 12:27:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 12:27:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 12:27:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 12:27:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 12:27:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 12:27:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 12:27:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 12:27:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-11 12:27:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 12:27:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-11 12:27:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-11 12:27:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-11 12:27:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-11 12:27:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-11 12:27:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-11 12:27:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 12:27:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 12:27:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-11 12:27:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-11 12:27:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-11 12:27:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 12:27:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-10-11 12:27:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-10-11 12:27:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-10-11 12:27:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:36,759 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-10-11 12:27:36,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 12:27:36,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144184966] [2024-10-11 12:27:36,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144184966] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 12:27:36,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 12:27:36,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 12:27:36,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776659103] [2024-10-11 12:27:36,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 12:27:36,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 12:27:36,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 12:27:36,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 12:27:36,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 12:27:36,761 INFO L87 Difference]: Start difference. First operand 2149 states and 3408 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-10-11 12:27:41,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-11 12:27:43,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-11 12:27:44,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 12:27:44,153 INFO L93 Difference]: Finished difference Result 4765 states and 7551 transitions. [2024-10-11 12:27:44,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 12:27:44,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 322 [2024-10-11 12:27:44,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 12:27:44,181 INFO L225 Difference]: With dead ends: 4765 [2024-10-11 12:27:44,181 INFO L226 Difference]: Without dead ends: 3285 [2024-10-11 12:27:44,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 12:27:44,189 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 220 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-10-11 12:27:44,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 888 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2024-10-11 12:27:44,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3285 states. [2024-10-11 12:27:44,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3285 to 941. [2024-10-11 12:27:44,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 742 states have (on average 1.4878706199460916) internal successors, (1104), 744 states have internal predecessors, (1104), 192 states have call successors, (192), 6 states have call predecessors, (192), 6 states have return successors, (192), 190 states have call predecessors, (192), 192 states have call successors, (192) [2024-10-11 12:27:44,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1488 transitions. [2024-10-11 12:27:44,411 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1488 transitions. Word has length 322 [2024-10-11 12:27:44,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 12:27:44,412 INFO L471 AbstractCegarLoop]: Abstraction has 941 states and 1488 transitions. [2024-10-11 12:27:44,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-10-11 12:27:44,413 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1488 transitions. [2024-10-11 12:27:44,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-10-11 12:27:44,418 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 12:27:44,419 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 12:27:44,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 12:27:44,419 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 12:27:44,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 12:27:44,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1579160431, now seen corresponding path program 1 times [2024-10-11 12:27:44,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 12:27:44,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357198845] [2024-10-11 12:27:44,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:27:44,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 12:27:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 12:27:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 12:27:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 12:27:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 12:27:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 12:27:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 12:27:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 12:27:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 12:27:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 12:27:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 12:27:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 12:27:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 12:27:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 12:27:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 12:27:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 12:27:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 12:27:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 12:27:45,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 12:27:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 12:27:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 12:27:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 12:27:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 12:27:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 12:27:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 12:27:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 12:27:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 12:27:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 12:27:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 12:27:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 12:27:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 12:27:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 12:27:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 12:27:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 12:27:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-11 12:27:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 12:27:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-11 12:27:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-11 12:27:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-11 12:27:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-11 12:27:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-11 12:27:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-11 12:27:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 12:27:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 12:27:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-11 12:27:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-11 12:27:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-11 12:27:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 12:27:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-10-11 12:27:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-10-11 12:27:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-10-11 12:27:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:45,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 108 proven. 39 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2024-10-11 12:27:45,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 12:27:45,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357198845] [2024-10-11 12:27:45,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357198845] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 12:27:45,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423973527] [2024-10-11 12:27:45,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:27:45,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 12:27:45,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 12:27:45,734 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 12:27:45,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 12:27:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:46,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-11 12:27:46,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 12:27:46,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 2074 proven. 39 refuted. 0 times theorem prover too weak. 2787 trivial. 0 not checked. [2024-10-11 12:27:46,426 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 12:27:47,002 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 108 proven. 39 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2024-10-11 12:27:47,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423973527] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 12:27:47,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 12:27:47,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 8] total 18 [2024-10-11 12:27:47,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949363337] [2024-10-11 12:27:47,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 12:27:47,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 12:27:47,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 12:27:47,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 12:27:47,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-10-11 12:27:47,008 INFO L87 Difference]: Start difference. First operand 941 states and 1488 transitions. Second operand has 18 states, 18 states have (on average 6.944444444444445) internal successors, (125), 18 states have internal predecessors, (125), 4 states have call successors, (76), 3 states have call predecessors, (76), 6 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) [2024-10-11 12:27:53,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 12:27:53,022 INFO L93 Difference]: Finished difference Result 3127 states and 4738 transitions. [2024-10-11 12:27:53,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-10-11 12:27:53,022 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.944444444444445) internal successors, (125), 18 states have internal predecessors, (125), 4 states have call successors, (76), 3 states have call predecessors, (76), 6 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) Word has length 322 [2024-10-11 12:27:53,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 12:27:53,039 INFO L225 Difference]: With dead ends: 3127 [2024-10-11 12:27:53,039 INFO L226 Difference]: Without dead ends: 2187 [2024-10-11 12:27:53,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 744 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1853 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=906, Invalid=5100, Unknown=0, NotChecked=0, Total=6006 [2024-10-11 12:27:53,047 INFO L432 NwaCegarLoop]: 576 mSDtfsCounter, 1911 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 3224 mSolverCounterSat, 1036 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1951 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 4260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1036 IncrementalHoareTripleChecker+Valid, 3224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-10-11 12:27:53,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1951 Valid, 3410 Invalid, 4260 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1036 Valid, 3224 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-10-11 12:27:53,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2024-10-11 12:27:53,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 862. [2024-10-11 12:27:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 643 states have (on average 1.374805598755832) internal successors, (884), 645 states have internal predecessors, (884), 200 states have call successors, (200), 18 states have call predecessors, (200), 18 states have return successors, (200), 198 states have call predecessors, (200), 200 states have call successors, (200) [2024-10-11 12:27:53,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1284 transitions. [2024-10-11 12:27:53,242 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1284 transitions. Word has length 322 [2024-10-11 12:27:53,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 12:27:53,243 INFO L471 AbstractCegarLoop]: Abstraction has 862 states and 1284 transitions. [2024-10-11 12:27:53,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.944444444444445) internal successors, (125), 18 states have internal predecessors, (125), 4 states have call successors, (76), 3 states have call predecessors, (76), 6 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) [2024-10-11 12:27:53,243 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1284 transitions. [2024-10-11 12:27:53,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-10-11 12:27:53,247 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 12:27:53,248 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 12:27:53,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 12:27:53,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 12:27:53,449 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 12:27:53,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 12:27:53,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1343999567, now seen corresponding path program 1 times [2024-10-11 12:27:53,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 12:27:53,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961915425] [2024-10-11 12:27:53,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:27:53,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 12:27:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 12:27:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 12:27:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 12:27:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 12:27:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 12:27:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 12:27:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 12:27:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 12:27:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 12:27:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 12:27:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 12:27:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 12:27:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 12:27:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 12:27:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 12:27:55,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 12:27:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 12:27:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 12:27:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 12:27:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 12:27:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 12:27:55,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 12:27:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 12:27:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 12:27:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 12:27:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 12:27:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 12:27:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 12:27:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 12:27:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 12:27:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 12:27:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 12:27:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 12:27:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-11 12:27:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 12:27:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-11 12:27:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-11 12:27:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-11 12:27:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-11 12:27:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-11 12:27:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-11 12:27:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 12:27:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 12:27:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-11 12:27:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-11 12:27:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-11 12:27:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 12:27:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-10-11 12:27:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-10-11 12:27:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-10-11 12:27:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 108 proven. 39 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2024-10-11 12:27:55,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 12:27:55,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961915425] [2024-10-11 12:27:55,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961915425] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 12:27:55,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503210563] [2024-10-11 12:27:55,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:27:55,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 12:27:55,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 12:27:55,308 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 12:27:55,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 12:27:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:55,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 12:27:55,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 12:27:55,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 693 proven. 9 refuted. 0 times theorem prover too weak. 4198 trivial. 0 not checked. [2024-10-11 12:27:55,619 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 12:27:55,871 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 138 proven. 9 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2024-10-11 12:27:55,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503210563] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 12:27:55,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 12:27:55,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 13 [2024-10-11 12:27:55,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300596799] [2024-10-11 12:27:55,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 12:27:55,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 12:27:55,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 12:27:55,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 12:27:55,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-11 12:27:55,876 INFO L87 Difference]: Start difference. First operand 862 states and 1284 transitions. Second operand has 13 states, 12 states have (on average 11.333333333333334) internal successors, (136), 13 states have internal predecessors, (136), 5 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 4 states have call predecessors, (104), 5 states have call successors, (104) [2024-10-11 12:27:58,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 12:27:58,684 INFO L93 Difference]: Finished difference Result 2365 states and 3513 transitions. [2024-10-11 12:27:58,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-11 12:27:58,685 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 11.333333333333334) internal successors, (136), 13 states have internal predecessors, (136), 5 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 4 states have call predecessors, (104), 5 states have call successors, (104) Word has length 322 [2024-10-11 12:27:58,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 12:27:58,696 INFO L225 Difference]: With dead ends: 2365 [2024-10-11 12:27:58,696 INFO L226 Difference]: Without dead ends: 1504 [2024-10-11 12:27:58,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 772 GetRequests, 743 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=238, Invalid=632, Unknown=0, NotChecked=0, Total=870 [2024-10-11 12:27:58,702 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 1217 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 780 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 780 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 12:27:58,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 1579 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [780 Valid, 1754 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 12:27:58,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2024-10-11 12:27:58,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1270. [2024-10-11 12:27:58,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 935 states have (on average 1.358288770053476) internal successors, (1270), 937 states have internal predecessors, (1270), 300 states have call successors, (300), 34 states have call predecessors, (300), 34 states have return successors, (300), 298 states have call predecessors, (300), 300 states have call successors, (300) [2024-10-11 12:27:58,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1870 transitions. [2024-10-11 12:27:58,943 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1870 transitions. Word has length 322 [2024-10-11 12:27:58,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 12:27:58,944 INFO L471 AbstractCegarLoop]: Abstraction has 1270 states and 1870 transitions. [2024-10-11 12:27:58,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 11.333333333333334) internal successors, (136), 13 states have internal predecessors, (136), 5 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 4 states have call predecessors, (104), 5 states have call successors, (104) [2024-10-11 12:27:58,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1870 transitions. [2024-10-11 12:27:58,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-10-11 12:27:58,948 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 12:27:58,948 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 12:27:58,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 12:27:59,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 12:27:59,150 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 12:27:59,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 12:27:59,151 INFO L85 PathProgramCache]: Analyzing trace with hash -680681249, now seen corresponding path program 1 times [2024-10-11 12:27:59,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 12:27:59,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254965756] [2024-10-11 12:27:59,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:27:59,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 12:27:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 12:27:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 12:27:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 12:27:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 12:27:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 12:27:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 12:27:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 12:27:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 12:27:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 12:27:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 12:27:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 12:27:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 12:27:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 12:27:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 12:27:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 12:27:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 12:27:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 12:27:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 12:27:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 12:27:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 12:27:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 12:27:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 12:27:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 12:27:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 12:27:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 12:27:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 12:27:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 12:27:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 12:27:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 12:27:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 12:27:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 12:27:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 12:27:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 12:27:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-11 12:27:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 12:27:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-11 12:27:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-11 12:27:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-11 12:27:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-11 12:27:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-11 12:27:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-11 12:27:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 12:27:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 12:27:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-11 12:27:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-11 12:27:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-11 12:27:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 12:27:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-10-11 12:27:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-10-11 12:27:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-10-11 12:27:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:27:59,998 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-10-11 12:27:59,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 12:27:59,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254965756] [2024-10-11 12:27:59,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254965756] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 12:27:59,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 12:27:59,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 12:27:59,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758157181] [2024-10-11 12:27:59,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 12:28:00,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 12:28:00,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 12:28:00,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 12:28:00,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 12:28:00,001 INFO L87 Difference]: Start difference. First operand 1270 states and 1870 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-10-11 12:28:00,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 12:28:00,512 INFO L93 Difference]: Finished difference Result 2116 states and 3099 transitions. [2024-10-11 12:28:00,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 12:28:00,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 322 [2024-10-11 12:28:00,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 12:28:00,521 INFO L225 Difference]: With dead ends: 2116 [2024-10-11 12:28:00,522 INFO L226 Difference]: Without dead ends: 847 [2024-10-11 12:28:00,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 12:28:00,526 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 324 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 12:28:00,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 619 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 12:28:00,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-10-11 12:28:00,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 436. [2024-10-11 12:28:00,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 324 states have (on average 1.3395061728395061) internal successors, (434), 325 states have internal predecessors, (434), 100 states have call successors, (100), 11 states have call predecessors, (100), 11 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-10-11 12:28:00,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 634 transitions. [2024-10-11 12:28:00,638 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 634 transitions. Word has length 322 [2024-10-11 12:28:00,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 12:28:00,639 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 634 transitions. [2024-10-11 12:28:00,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-10-11 12:28:00,640 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 634 transitions. [2024-10-11 12:28:00,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-10-11 12:28:00,642 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 12:28:00,642 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 12:28:00,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 12:28:00,643 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 12:28:00,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 12:28:00,643 INFO L85 PathProgramCache]: Analyzing trace with hash 334224904, now seen corresponding path program 1 times [2024-10-11 12:28:00,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 12:28:00,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773741328] [2024-10-11 12:28:00,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:28:00,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 12:28:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 12:28:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 12:28:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 12:28:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 12:28:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 12:28:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 12:28:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 12:28:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 12:28:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 12:28:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 12:28:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 12:28:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 12:28:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 12:28:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 12:28:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 12:28:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 12:28:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 12:28:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 12:28:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 12:28:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 12:28:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 12:28:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 12:28:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 12:28:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 12:28:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 12:28:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 12:28:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 12:28:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 12:28:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 12:28:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 12:28:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 12:28:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 12:28:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 12:28:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-11 12:28:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 12:28:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-11 12:28:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-11 12:28:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-11 12:28:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-11 12:28:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-11 12:28:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-11 12:28:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 12:28:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 12:28:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-11 12:28:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-11 12:28:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-11 12:28:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 12:28:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-10-11 12:28:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-10-11 12:28:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-10-11 12:28:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:01,985 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 132 proven. 15 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2024-10-11 12:28:01,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 12:28:01,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773741328] [2024-10-11 12:28:01,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773741328] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 12:28:01,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178180099] [2024-10-11 12:28:01,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:28:01,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 12:28:01,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 12:28:01,988 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 12:28:01,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 12:28:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:02,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 12:28:02,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 12:28:02,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 1017 proven. 15 refuted. 0 times theorem prover too weak. 3868 trivial. 0 not checked. [2024-10-11 12:28:02,972 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 12:28:03,714 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 132 proven. 15 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2024-10-11 12:28:03,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178180099] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 12:28:03,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 12:28:03,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 11] total 23 [2024-10-11 12:28:03,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517144144] [2024-10-11 12:28:03,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 12:28:03,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 12:28:03,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 12:28:03,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 12:28:03,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2024-10-11 12:28:03,718 INFO L87 Difference]: Start difference. First operand 436 states and 634 transitions. Second operand has 23 states, 23 states have (on average 6.130434782608695) internal successors, (141), 23 states have internal predecessors, (141), 4 states have call successors, (150), 3 states have call predecessors, (150), 6 states have return successors, (150), 4 states have call predecessors, (150), 4 states have call successors, (150) [2024-10-11 12:28:08,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 12:28:08,353 INFO L93 Difference]: Finished difference Result 1763 states and 2520 transitions. [2024-10-11 12:28:08,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-11 12:28:08,354 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.130434782608695) internal successors, (141), 23 states have internal predecessors, (141), 4 states have call successors, (150), 3 states have call predecessors, (150), 6 states have return successors, (150), 4 states have call predecessors, (150), 4 states have call successors, (150) Word has length 323 [2024-10-11 12:28:08,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 12:28:08,364 INFO L225 Difference]: With dead ends: 1763 [2024-10-11 12:28:08,364 INFO L226 Difference]: Without dead ends: 1328 [2024-10-11 12:28:08,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 788 GetRequests, 735 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=509, Invalid=2247, Unknown=0, NotChecked=0, Total=2756 [2024-10-11 12:28:08,368 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 1459 mSDsluCounter, 2321 mSDsCounter, 0 mSdLazyCounter, 3053 mSolverCounterSat, 863 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 2622 SdHoareTripleChecker+Invalid, 3916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 863 IncrementalHoareTripleChecker+Valid, 3053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-10-11 12:28:08,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 2622 Invalid, 3916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [863 Valid, 3053 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-10-11 12:28:08,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2024-10-11 12:28:08,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 799. [2024-10-11 12:28:08,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 524 states have (on average 1.248091603053435) internal successors, (654), 527 states have internal predecessors, (654), 245 states have call successors, (245), 29 states have call predecessors, (245), 29 states have return successors, (245), 242 states have call predecessors, (245), 245 states have call successors, (245) [2024-10-11 12:28:08,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1144 transitions. [2024-10-11 12:28:08,647 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1144 transitions. Word has length 323 [2024-10-11 12:28:08,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 12:28:08,650 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1144 transitions. [2024-10-11 12:28:08,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.130434782608695) internal successors, (141), 23 states have internal predecessors, (141), 4 states have call successors, (150), 3 states have call predecessors, (150), 6 states have return successors, (150), 4 states have call predecessors, (150), 4 states have call successors, (150) [2024-10-11 12:28:08,651 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1144 transitions. [2024-10-11 12:28:08,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-10-11 12:28:08,653 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 12:28:08,653 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 12:28:08,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 12:28:08,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 12:28:08,854 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 12:28:08,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 12:28:08,854 INFO L85 PathProgramCache]: Analyzing trace with hash -766779090, now seen corresponding path program 1 times [2024-10-11 12:28:08,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 12:28:08,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011025437] [2024-10-11 12:28:08,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:28:08,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 12:28:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 12:28:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 12:28:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 12:28:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 12:28:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 12:28:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 12:28:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 12:28:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 12:28:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 12:28:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 12:28:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 12:28:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 12:28:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 12:28:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 12:28:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 12:28:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 12:28:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 12:28:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 12:28:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 12:28:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 12:28:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 12:28:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 12:28:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 12:28:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 12:28:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 12:28:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 12:28:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 12:28:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 12:28:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 12:28:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 12:28:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 12:28:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 12:28:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 12:28:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-11 12:28:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-11 12:28:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-11 12:28:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-11 12:28:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-11 12:28:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-11 12:28:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-11 12:28:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-11 12:28:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-11 12:28:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-11 12:28:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-11 12:28:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-11 12:28:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-11 12:28:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 12:28:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-10-11 12:28:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-10-11 12:28:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-10-11 12:28:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 108 proven. 39 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2024-10-11 12:28:10,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 12:28:10,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011025437] [2024-10-11 12:28:10,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011025437] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 12:28:10,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320001596] [2024-10-11 12:28:10,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 12:28:10,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 12:28:10,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 12:28:10,252 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 12:28:10,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 12:28:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 12:28:10,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-11 12:28:10,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 12:28:12,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 3340 proven. 249 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-10-11 12:28:12,058 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 12:28:13,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 303 proven. 267 refuted. 0 times theorem prover too weak. 4330 trivial. 0 not checked. [2024-10-11 12:28:13,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320001596] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 12:28:13,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 12:28:13,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 14] total 31 [2024-10-11 12:28:13,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349918531] [2024-10-11 12:28:13,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 12:28:13,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-11 12:28:13,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 12:28:13,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-11 12:28:13,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=716, Unknown=0, NotChecked=0, Total=930 [2024-10-11 12:28:13,180 INFO L87 Difference]: Start difference. First operand 799 states and 1144 transitions. Second operand has 31 states, 29 states have (on average 6.793103448275862) internal successors, (197), 29 states have internal predecessors, (197), 11 states have call successors, (108), 5 states have call predecessors, (108), 12 states have return successors, (110), 10 states have call predecessors, (110), 11 states have call successors, (110)