./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-10.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f2ce53af9c66d6bd4e6245b14ec3d2cb70914e6d2b607270695f04fd6258fc72 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 15:55:38,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 15:55:38,157 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 15:55:38,165 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 15:55:38,167 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 15:55:38,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 15:55:38,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 15:55:38,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 15:55:38,201 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 15:55:38,202 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 15:55:38,203 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 15:55:38,203 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 15:55:38,204 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 15:55:38,206 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 15:55:38,206 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 15:55:38,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 15:55:38,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 15:55:38,207 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 15:55:38,208 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 15:55:38,208 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 15:55:38,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 15:55:38,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 15:55:38,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 15:55:38,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 15:55:38,213 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 15:55:38,214 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 15:55:38,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 15:55:38,214 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 15:55:38,214 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 15:55:38,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 15:55:38,215 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 15:55:38,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 15:55:38,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 15:55:38,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 15:55:38,216 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 15:55:38,216 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 15:55:38,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 15:55:38,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 15:55:38,217 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 15:55:38,217 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 15:55:38,217 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 15:55:38,219 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 15:55:38,219 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2ce53af9c66d6bd4e6245b14ec3d2cb70914e6d2b607270695f04fd6258fc72 [2024-11-16 15:55:38,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 15:55:38,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 15:55:38,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 15:55:38,524 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 15:55:38,524 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 15:55:38,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-10.i [2024-11-16 15:55:40,011 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 15:55:40,251 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 15:55:40,252 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-10.i [2024-11-16 15:55:40,267 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a228b833/1e4e3dfb50c541088dc2eb840a862545/FLAG6bf715b8a [2024-11-16 15:55:40,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a228b833/1e4e3dfb50c541088dc2eb840a862545 [2024-11-16 15:55:40,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 15:55:40,593 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 15:55:40,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 15:55:40,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 15:55:40,599 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 15:55:40,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:55:40" (1/1) ... [2024-11-16 15:55:40,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@121c0ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40, skipping insertion in model container [2024-11-16 15:55:40,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:55:40" (1/1) ... [2024-11-16 15:55:40,636 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 15:55:40,796 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-10.i[916,929] [2024-11-16 15:55:40,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 15:55:40,912 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 15:55:40,923 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-10.i[916,929] [2024-11-16 15:55:40,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 15:55:40,984 INFO L204 MainTranslator]: Completed translation [2024-11-16 15:55:40,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40 WrapperNode [2024-11-16 15:55:40,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 15:55:40,986 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 15:55:40,986 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 15:55:40,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 15:55:40,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40" (1/1) ... [2024-11-16 15:55:41,006 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40" (1/1) ... [2024-11-16 15:55:41,068 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 295 [2024-11-16 15:55:41,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 15:55:41,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 15:55:41,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 15:55:41,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 15:55:41,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40" (1/1) ... [2024-11-16 15:55:41,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40" (1/1) ... [2024-11-16 15:55:41,095 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40" (1/1) ... [2024-11-16 15:55:41,135 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 15:55:41,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40" (1/1) ... [2024-11-16 15:55:41,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40" (1/1) ... [2024-11-16 15:55:41,153 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40" (1/1) ... [2024-11-16 15:55:41,157 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40" (1/1) ... [2024-11-16 15:55:41,167 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40" (1/1) ... [2024-11-16 15:55:41,172 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40" (1/1) ... [2024-11-16 15:55:41,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 15:55:41,186 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 15:55:41,186 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 15:55:41,187 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 15:55:41,188 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40" (1/1) ... [2024-11-16 15:55:41,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 15:55:41,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 15:55:41,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 15:55:41,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 15:55:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 15:55:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 15:55:41,287 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 15:55:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 15:55:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 15:55:41,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 15:55:41,372 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 15:55:41,375 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 15:55:41,964 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L200: havoc property_#t~ite25#1;havoc property_#t~bitwise24#1;havoc property_#t~short26#1;havoc property_#t~ite30#1;havoc property_#t~bitwise27#1;havoc property_#t~ite29#1;havoc property_#t~bitwise28#1;havoc property_#t~short31#1; [2024-11-16 15:55:42,016 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-16 15:55:42,016 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 15:55:42,051 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 15:55:42,051 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 15:55:42,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:55:42 BoogieIcfgContainer [2024-11-16 15:55:42,052 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 15:55:42,054 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 15:55:42,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 15:55:42,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 15:55:42,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:55:40" (1/3) ... [2024-11-16 15:55:42,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e822c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:55:42, skipping insertion in model container [2024-11-16 15:55:42,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:40" (2/3) ... [2024-11-16 15:55:42,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e822c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:55:42, skipping insertion in model container [2024-11-16 15:55:42,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:55:42" (3/3) ... [2024-11-16 15:55:42,063 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-10.i [2024-11-16 15:55:42,077 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 15:55:42,077 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 15:55:42,139 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 15:55:42,149 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;@6629879, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 15:55:42,149 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 15:55:42,155 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 96 states have (on average 1.4479166666666667) internal successors, (139), 97 states have internal predecessors, (139), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-16 15:55:42,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-16 15:55:42,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:55:42,171 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:55:42,171 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:55:42,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:55:42,176 INFO L85 PathProgramCache]: Analyzing trace with hash 309747890, now seen corresponding path program 1 times [2024-11-16 15:55:42,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:55:42,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301653924] [2024-11-16 15:55:42,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:55:42,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:55:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:42,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:55:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:42,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:55:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:42,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:55:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:42,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:55:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:42,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:55:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:42,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:55:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:42,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:55:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:42,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:55:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:42,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:55:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:42,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 15:55:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:42,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 15:55:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:42,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 15:55:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:42,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 15:55:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 15:55:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 15:55:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 15:55:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 15:55:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 15:55:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 15:55:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 15:55:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 15:55:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 15:55:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-16 15:55:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 15:55:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 15:55:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 15:55:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 15:55:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 15:55:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-16 15:55:43,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:55:43,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301653924] [2024-11-16 15:55:43,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301653924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:55:43,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:55:43,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 15:55:43,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328165341] [2024-11-16 15:55:43,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:55:43,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 15:55:43,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:55:43,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 15:55:43,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:55:43,169 INFO L87 Difference]: Start difference. First operand has 127 states, 96 states have (on average 1.4479166666666667) internal successors, (139), 97 states have internal predecessors, (139), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-16 15:55:43,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:55:43,268 INFO L93 Difference]: Finished difference Result 250 states and 414 transitions. [2024-11-16 15:55:43,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 15:55:43,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 194 [2024-11-16 15:55:43,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:55:43,284 INFO L225 Difference]: With dead ends: 250 [2024-11-16 15:55:43,284 INFO L226 Difference]: Without dead ends: 122 [2024-11-16 15:55:43,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:55:43,294 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 15:55:43,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 363 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 15:55:43,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-16 15:55:43,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-16 15:55:43,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 92 states have internal predecessors, (130), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-16 15:55:43,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 186 transitions. [2024-11-16 15:55:43,352 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 186 transitions. Word has length 194 [2024-11-16 15:55:43,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:55:43,354 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 186 transitions. [2024-11-16 15:55:43,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-16 15:55:43,355 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 186 transitions. [2024-11-16 15:55:43,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-16 15:55:43,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:55:43,360 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:55:43,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 15:55:43,361 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:55:43,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:55:43,362 INFO L85 PathProgramCache]: Analyzing trace with hash 55011345, now seen corresponding path program 1 times [2024-11-16 15:55:43,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:55:43,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934625740] [2024-11-16 15:55:43,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:55:43,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:55:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:55:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:55:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:55:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:55:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:55:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:55:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:55:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:55:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:55:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 15:55:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 15:55:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 15:55:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 15:55:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 15:55:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 15:55:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 15:55:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:43,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 15:55:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:44,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 15:55:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:44,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 15:55:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:44,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 15:55:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:44,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 15:55:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:44,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 15:55:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:44,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-16 15:55:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:44,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 15:55:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:44,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 15:55:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:44,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 15:55:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:44,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 15:55:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:44,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 15:55:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:44,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-16 15:55:44,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:55:44,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934625740] [2024-11-16 15:55:44,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934625740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:55:44,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:55:44,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 15:55:44,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469779502] [2024-11-16 15:55:44,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:55:44,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 15:55:44,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:55:44,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 15:55:44,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 15:55:44,119 INFO L87 Difference]: Start difference. First operand 122 states and 186 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-16 15:55:44,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:55:44,432 INFO L93 Difference]: Finished difference Result 419 states and 642 transitions. [2024-11-16 15:55:44,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 15:55:44,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 194 [2024-11-16 15:55:44,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:55:44,437 INFO L225 Difference]: With dead ends: 419 [2024-11-16 15:55:44,437 INFO L226 Difference]: Without dead ends: 300 [2024-11-16 15:55:44,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 15:55:44,439 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 262 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 15:55:44,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 539 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 15:55:44,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-16 15:55:44,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 272. [2024-11-16 15:55:44,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 213 states have (on average 1.4413145539906103) internal successors, (307), 213 states have internal predecessors, (307), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 15:55:44,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 419 transitions. [2024-11-16 15:55:44,490 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 419 transitions. Word has length 194 [2024-11-16 15:55:44,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:55:44,491 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 419 transitions. [2024-11-16 15:55:44,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-16 15:55:44,492 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 419 transitions. [2024-11-16 15:55:44,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-16 15:55:44,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:55:44,500 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:55:44,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 15:55:44,500 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:55:44,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:55:44,501 INFO L85 PathProgramCache]: Analyzing trace with hash 893723508, now seen corresponding path program 1 times [2024-11-16 15:55:44,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:55:44,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208909847] [2024-11-16 15:55:44,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:55:44,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:55:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:55:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:55:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:55:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:55:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:55:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:55:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:55:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:55:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:55:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 15:55:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 15:55:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 15:55:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 15:55:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 15:55:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 15:55:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 15:55:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 15:55:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 15:55:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 15:55:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 15:55:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 15:55:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 15:55:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-16 15:55:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 15:55:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 15:55:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 15:55:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 15:55:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 15:55:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:45,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-16 15:55:45,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:55:45,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208909847] [2024-11-16 15:55:45,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208909847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:55:45,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:55:45,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 15:55:45,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534859576] [2024-11-16 15:55:45,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:55:45,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 15:55:45,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:55:45,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 15:55:45,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 15:55:45,324 INFO L87 Difference]: Start difference. First operand 272 states and 419 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-16 15:55:45,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:55:45,730 INFO L93 Difference]: Finished difference Result 897 states and 1374 transitions. [2024-11-16 15:55:45,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 15:55:45,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 196 [2024-11-16 15:55:45,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:55:45,735 INFO L225 Difference]: With dead ends: 897 [2024-11-16 15:55:45,736 INFO L226 Difference]: Without dead ends: 628 [2024-11-16 15:55:45,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 15:55:45,739 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 251 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 15:55:45,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 510 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 15:55:45,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-11-16 15:55:45,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 454. [2024-11-16 15:55:45,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 345 states have (on average 1.4115942028985506) internal successors, (487), 347 states have internal predecessors, (487), 104 states have call successors, (104), 4 states have call predecessors, (104), 4 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-16 15:55:45,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 695 transitions. [2024-11-16 15:55:45,823 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 695 transitions. Word has length 196 [2024-11-16 15:55:45,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:55:45,824 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 695 transitions. [2024-11-16 15:55:45,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-16 15:55:45,825 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 695 transitions. [2024-11-16 15:55:45,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-16 15:55:45,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:55:45,828 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:55:45,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 15:55:45,828 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:55:45,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:55:45,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1895716692, now seen corresponding path program 1 times [2024-11-16 15:55:45,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:55:45,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210318294] [2024-11-16 15:55:45,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:55:45,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:55:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:55:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:55:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:55:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:55:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:55:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:55:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:55:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:55:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:55:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 15:55:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 15:55:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 15:55:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 15:55:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 15:55:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 15:55:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 15:55:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 15:55:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 15:55:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 15:55:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 15:55:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 15:55:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 15:55:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-16 15:55:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 15:55:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 15:55:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 15:55:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 15:55:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 15:55:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 6 proven. 75 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2024-11-16 15:55:46,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:55:46,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210318294] [2024-11-16 15:55:46,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210318294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 15:55:46,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024754994] [2024-11-16 15:55:46,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:55:46,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 15:55:46,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 15:55:46,300 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 15:55:46,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 15:55:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:46,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 15:55:46,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 15:55:46,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 231 proven. 75 refuted. 0 times theorem prover too weak. 1206 trivial. 0 not checked. [2024-11-16 15:55:46,926 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 15:55:47,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 6 proven. 75 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2024-11-16 15:55:47,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024754994] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 15:55:47,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 15:55:47,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-16 15:55:47,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319084432] [2024-11-16 15:55:47,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 15:55:47,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 15:55:47,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:55:47,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 15:55:47,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-16 15:55:47,261 INFO L87 Difference]: Start difference. First operand 454 states and 695 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 3 states have call successors, (78), 2 states have call predecessors, (78), 4 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2024-11-16 15:55:47,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:55:47,541 INFO L93 Difference]: Finished difference Result 929 states and 1407 transitions. [2024-11-16 15:55:47,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 15:55:47,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 3 states have call successors, (78), 2 states have call predecessors, (78), 4 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) Word has length 196 [2024-11-16 15:55:47,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:55:47,549 INFO L225 Difference]: With dead ends: 929 [2024-11-16 15:55:47,550 INFO L226 Difference]: Without dead ends: 478 [2024-11-16 15:55:47,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-16 15:55:47,555 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 201 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 15:55:47,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 365 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 15:55:47,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-16 15:55:47,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 470. [2024-11-16 15:55:47,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 357 states have (on average 1.3725490196078431) internal successors, (490), 359 states have internal predecessors, (490), 104 states have call successors, (104), 8 states have call predecessors, (104), 8 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-16 15:55:47,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 698 transitions. [2024-11-16 15:55:47,626 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 698 transitions. Word has length 196 [2024-11-16 15:55:47,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:55:47,628 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 698 transitions. [2024-11-16 15:55:47,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 3 states have call successors, (78), 2 states have call predecessors, (78), 4 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2024-11-16 15:55:47,629 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 698 transitions. [2024-11-16 15:55:47,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-16 15:55:47,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:55:47,633 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:55:47,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 15:55:47,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 15:55:47,838 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:55:47,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:55:47,838 INFO L85 PathProgramCache]: Analyzing trace with hash -908864011, now seen corresponding path program 1 times [2024-11-16 15:55:47,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:55:47,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388948938] [2024-11-16 15:55:47,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:55:47,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:55:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 15:55:47,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1000662708] [2024-11-16 15:55:47,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:55:47,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 15:55:47,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 15:55:47,980 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 15:55:47,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 15:55:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:55:48,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-16 15:55:48,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 15:55:53,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 968 proven. 264 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-16 15:55:53,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 15:55:57,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:55:57,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388948938] [2024-11-16 15:55:57,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-16 15:55:57,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000662708] [2024-11-16 15:55:57,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000662708] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 15:55:57,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-16 15:55:57,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2024-11-16 15:55:57,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002443504] [2024-11-16 15:55:57,844 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-16 15:55:57,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-16 15:55:57,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:55:57,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-16 15:55:57,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=906, Unknown=0, NotChecked=0, Total=1122 [2024-11-16 15:55:57,847 INFO L87 Difference]: Start difference. First operand 470 states and 698 transitions. Second operand has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 24 states have internal predecessors, (87), 7 states have call successors, (28), 7 states have call predecessors, (28), 10 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-16 15:55:59,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:55:59,491 INFO L93 Difference]: Finished difference Result 1070 states and 1540 transitions. [2024-11-16 15:55:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-16 15:55:59,493 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 24 states have internal predecessors, (87), 7 states have call successors, (28), 7 states have call predecessors, (28), 10 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 197 [2024-11-16 15:55:59,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:55:59,497 INFO L225 Difference]: With dead ends: 1070 [2024-11-16 15:55:59,497 INFO L226 Difference]: Without dead ends: 603 [2024-11-16 15:55:59,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=383, Invalid=1339, Unknown=0, NotChecked=0, Total=1722 [2024-11-16 15:55:59,500 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 352 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 15:55:59,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 2261 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 15:55:59,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-11-16 15:55:59,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 530. [2024-11-16 15:55:59,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 405 states have (on average 1.3382716049382717) internal successors, (542), 407 states have internal predecessors, (542), 104 states have call successors, (104), 20 states have call predecessors, (104), 20 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-16 15:55:59,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 750 transitions. [2024-11-16 15:55:59,556 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 750 transitions. Word has length 197 [2024-11-16 15:55:59,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:55:59,557 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 750 transitions. [2024-11-16 15:55:59,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 24 states have internal predecessors, (87), 7 states have call successors, (28), 7 states have call predecessors, (28), 10 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-16 15:55:59,558 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 750 transitions. [2024-11-16 15:55:59,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-16 15:55:59,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:55:59,560 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:55:59,578 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 15:55:59,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 15:55:59,765 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:55:59,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:55:59,766 INFO L85 PathProgramCache]: Analyzing trace with hash -552571946, now seen corresponding path program 1 times [2024-11-16 15:55:59,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:55:59,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721125620] [2024-11-16 15:55:59,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:55:59,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:55:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 15:55:59,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738895528] [2024-11-16 15:55:59,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:55:59,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 15:55:59,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 15:55:59,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 15:55:59,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 15:56:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:00,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-16 15:56:00,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 15:56:04,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 1020 proven. 162 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-11-16 15:56:04,213 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 15:56:07,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:56:07,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721125620] [2024-11-16 15:56:07,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-16 15:56:07,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738895528] [2024-11-16 15:56:07,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738895528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 15:56:07,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-16 15:56:07,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2024-11-16 15:56:07,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40554329] [2024-11-16 15:56:07,469 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-16 15:56:07,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-16 15:56:07,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:56:07,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-16 15:56:07,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=852, Unknown=0, NotChecked=0, Total=1056 [2024-11-16 15:56:07,472 INFO L87 Difference]: Start difference. First operand 530 states and 750 transitions. Second operand has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 25 states have internal predecessors, (90), 7 states have call successors, (28), 7 states have call predecessors, (28), 11 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-16 15:56:10,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-16 15:56:12,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-16 15:56:14,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-16 15:56:14,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:56:14,640 INFO L93 Difference]: Finished difference Result 1301 states and 1831 transitions. [2024-11-16 15:56:14,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-16 15:56:14,641 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 25 states have internal predecessors, (90), 7 states have call successors, (28), 7 states have call predecessors, (28), 11 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) Word has length 197 [2024-11-16 15:56:14,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:56:14,646 INFO L225 Difference]: With dead ends: 1301 [2024-11-16 15:56:14,647 INFO L226 Difference]: Without dead ends: 1082 [2024-11-16 15:56:14,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=358, Invalid=1282, Unknown=0, NotChecked=0, Total=1640 [2024-11-16 15:56:14,651 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 690 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-16 15:56:14,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 2216 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1448 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2024-11-16 15:56:14,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2024-11-16 15:56:14,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 606. [2024-11-16 15:56:14,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 474 states have (on average 1.358649789029536) internal successors, (644), 475 states have internal predecessors, (644), 108 states have call successors, (108), 23 states have call predecessors, (108), 23 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-16 15:56:14,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 860 transitions. [2024-11-16 15:56:14,711 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 860 transitions. Word has length 197 [2024-11-16 15:56:14,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:56:14,712 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 860 transitions. [2024-11-16 15:56:14,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 25 states have internal predecessors, (90), 7 states have call successors, (28), 7 states have call predecessors, (28), 11 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-16 15:56:14,712 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 860 transitions. [2024-11-16 15:56:14,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-16 15:56:14,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:56:14,715 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:56:14,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 15:56:14,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 15:56:14,916 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:56:14,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:56:14,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1063106123, now seen corresponding path program 1 times [2024-11-16 15:56:14,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:56:14,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178142043] [2024-11-16 15:56:14,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:56:14,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:56:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:14,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:56:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:14,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:56:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:56:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:56:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:56:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:56:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:56:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:56:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:56:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 15:56:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 15:56:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 15:56:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 15:56:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 15:56:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 15:56:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 15:56:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 15:56:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 15:56:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 15:56:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 15:56:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 15:56:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 15:56:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-16 15:56:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 15:56:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 15:56:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 15:56:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 15:56:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 15:56:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-16 15:56:15,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:56:15,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178142043] [2024-11-16 15:56:15,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178142043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:56:15,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:56:15,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 15:56:15,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092437682] [2024-11-16 15:56:15,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:56:15,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 15:56:15,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:56:15,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 15:56:15,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:56:15,048 INFO L87 Difference]: Start difference. First operand 606 states and 860 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-16 15:56:15,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:56:15,163 INFO L93 Difference]: Finished difference Result 1748 states and 2479 transitions. [2024-11-16 15:56:15,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 15:56:15,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 197 [2024-11-16 15:56:15,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:56:15,171 INFO L225 Difference]: With dead ends: 1748 [2024-11-16 15:56:15,171 INFO L226 Difference]: Without dead ends: 1145 [2024-11-16 15:56:15,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:56:15,173 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 176 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 15:56:15,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 464 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 15:56:15,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2024-11-16 15:56:15,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 601. [2024-11-16 15:56:15,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 469 states have (on average 1.3539445628997868) internal successors, (635), 470 states have internal predecessors, (635), 108 states have call successors, (108), 23 states have call predecessors, (108), 23 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-16 15:56:15,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 851 transitions. [2024-11-16 15:56:15,247 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 851 transitions. Word has length 197 [2024-11-16 15:56:15,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:56:15,247 INFO L471 AbstractCegarLoop]: Abstraction has 601 states and 851 transitions. [2024-11-16 15:56:15,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-16 15:56:15,248 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 851 transitions. [2024-11-16 15:56:15,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-16 15:56:15,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:56:15,251 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:56:15,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 15:56:15,251 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:56:15,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:56:15,252 INFO L85 PathProgramCache]: Analyzing trace with hash -364422971, now seen corresponding path program 1 times [2024-11-16 15:56:15,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:56:15,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924502952] [2024-11-16 15:56:15,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:56:15,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:56:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 15:56:15,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1040748297] [2024-11-16 15:56:15,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:56:15,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 15:56:15,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 15:56:15,362 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 15:56:15,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 15:56:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:56:15,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-16 15:56:15,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 15:56:18,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 987 proven. 282 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-11-16 15:56:18,490 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 15:56:58,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:56:58,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924502952] [2024-11-16 15:56:58,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-16 15:56:58,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040748297] [2024-11-16 15:56:58,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040748297] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 15:56:58,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-16 15:56:58,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2024-11-16 15:56:58,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712808340] [2024-11-16 15:56:58,424 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-16 15:56:58,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-16 15:56:58,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:56:58,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-16 15:56:58,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=958, Unknown=1, NotChecked=0, Total=1190 [2024-11-16 15:56:58,426 INFO L87 Difference]: Start difference. First operand 601 states and 851 transitions. Second operand has 29 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 26 states have internal predecessors, (94), 8 states have call successors, (28), 8 states have call predecessors, (28), 12 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) [2024-11-16 15:57:00,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:57:00,427 INFO L93 Difference]: Finished difference Result 1237 states and 1748 transitions. [2024-11-16 15:57:00,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-16 15:57:00,427 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 26 states have internal predecessors, (94), 8 states have call successors, (28), 8 states have call predecessors, (28), 12 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) Word has length 198 [2024-11-16 15:57:00,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:57:00,434 INFO L225 Difference]: With dead ends: 1237 [2024-11-16 15:57:00,435 INFO L226 Difference]: Without dead ends: 999 [2024-11-16 15:57:00,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 32.5s TimeCoverageRelationStatistics Valid=366, Invalid=1355, Unknown=1, NotChecked=0, Total=1722 [2024-11-16 15:57:00,437 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 298 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 15:57:00,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 1878 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 15:57:00,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-11-16 15:57:00,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 961. [2024-11-16 15:57:00,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 759 states have (on average 1.3478260869565217) internal successors, (1023), 761 states have internal predecessors, (1023), 160 states have call successors, (160), 41 states have call predecessors, (160), 41 states have return successors, (160), 158 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-16 15:57:00,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1343 transitions. [2024-11-16 15:57:00,509 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1343 transitions. Word has length 198 [2024-11-16 15:57:00,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:57:00,510 INFO L471 AbstractCegarLoop]: Abstraction has 961 states and 1343 transitions. [2024-11-16 15:57:00,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 26 states have internal predecessors, (94), 8 states have call successors, (28), 8 states have call predecessors, (28), 12 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) [2024-11-16 15:57:00,510 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1343 transitions. [2024-11-16 15:57:00,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-16 15:57:00,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:57:00,513 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:57:00,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 15:57:00,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 15:57:00,718 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:57:00,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:57:00,719 INFO L85 PathProgramCache]: Analyzing trace with hash -8130906, now seen corresponding path program 1 times [2024-11-16 15:57:00,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:57:00,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887617755] [2024-11-16 15:57:00,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:57:00,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:57:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 15:57:00,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1263706068] [2024-11-16 15:57:00,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:57:00,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 15:57:00,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 15:57:00,863 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 15:57:00,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 15:57:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:57:01,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-16 15:57:01,027 INFO L278 TraceCheckSpWp]: Computing forward predicates...