/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy BADGER --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2023/array-sum-with-log-4threads.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-10 12:05:34,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-10 12:05:34,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-10 12:05:34,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-10 12:05:34,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-10 12:05:34,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-10 12:05:34,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-10 12:05:34,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-10 12:05:34,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-10 12:05:34,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-10 12:05:34,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-10 12:05:34,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-10 12:05:34,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-10 12:05:34,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-10 12:05:34,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-10 12:05:34,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-10 12:05:34,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-10 12:05:34,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-10 12:05:34,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-10 12:05:34,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-10 12:05:34,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-10 12:05:34,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-10 12:05:34,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-10 12:05:34,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-10 12:05:34,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-10 12:05:34,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-10 12:05:34,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-10 12:05:34,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-10 12:05:34,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-10 12:05:34,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-10 12:05:34,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-10 12:05:34,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-10 12:05:34,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-10 12:05:34,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-10 12:05:34,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-10 12:05:34,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-10 12:05:34,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-10 12:05:34,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-10 12:05:34,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-10 12:05:34,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-10 12:05:34,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-10 12:05:34,266 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2022-10-10 12:05:34,296 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-10 12:05:34,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-10 12:05:34,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-10 12:05:34,297 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-10 12:05:34,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-10 12:05:34,298 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-10 12:05:34,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-10 12:05:34,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-10 12:05:34,301 INFO L138 SettingsManager]: * Use SBE=true [2022-10-10 12:05:34,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-10 12:05:34,302 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-10 12:05:34,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-10 12:05:34,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-10 12:05:34,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-10 12:05:34,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-10 12:05:34,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-10 12:05:34,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-10 12:05:34,303 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-10 12:05:34,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-10 12:05:34,303 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-10 12:05:34,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-10 12:05:34,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-10 12:05:34,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-10 12:05:34,303 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-10 12:05:34,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-10 12:05:34,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-10 12:05:34,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-10 12:05:34,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-10 12:05:34,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-10 12:05:34,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-10 12:05:34,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-10 12:05:34,305 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-10 12:05:34,305 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-10 12:05:34,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-10 12:05:34,305 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-10 12:05:34,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP [2022-10-10 12:05:34,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-10 12:05:34,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-10 12:05:34,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-10 12:05:34,640 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-10 12:05:34,641 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-10 12:05:34,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/array-sum-with-log-4threads.bpl [2022-10-10 12:05:34,644 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/array-sum-with-log-4threads.bpl' [2022-10-10 12:05:34,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-10 12:05:34,669 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-10 12:05:34,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-10 12:05:34,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-10 12:05:34,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-10 12:05:34,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 12:05:34" (1/1) ... [2022-10-10 12:05:34,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 12:05:34" (1/1) ... [2022-10-10 12:05:34,703 INFO L138 Inliner]: procedures = 3, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2022-10-10 12:05:34,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-10 12:05:34,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-10 12:05:34,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-10 12:05:34,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-10 12:05:34,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 12:05:34" (1/1) ... [2022-10-10 12:05:34,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 12:05:34" (1/1) ... [2022-10-10 12:05:34,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 12:05:34" (1/1) ... [2022-10-10 12:05:34,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 12:05:34" (1/1) ... [2022-10-10 12:05:34,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 12:05:34" (1/1) ... [2022-10-10 12:05:34,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 12:05:34" (1/1) ... [2022-10-10 12:05:34,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 12:05:34" (1/1) ... [2022-10-10 12:05:34,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-10 12:05:34,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-10 12:05:34,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-10 12:05:34,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-10 12:05:34,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 12:05:34" (1/1) ... [2022-10-10 12:05:34,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-10 12:05:34,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-10 12:05:34,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-10 12:05:34,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-10 12:05:34,789 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-10-10 12:05:34,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-10 12:05:34,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-10 12:05:34,790 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sum given in one single declaration [2022-10-10 12:05:34,790 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-10-10 12:05:34,794 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-10-10 12:05:34,796 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-10 12:05:34,838 INFO L234 CfgBuilder]: Building ICFG [2022-10-10 12:05:34,840 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-10 12:05:34,973 INFO L275 CfgBuilder]: Performing block encoding [2022-10-10 12:05:34,984 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-10 12:05:34,985 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-10 12:05:34,987 INFO L202 PluginConnector]: Adding new model array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 12:05:34 BoogieIcfgContainer [2022-10-10 12:05:34,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-10 12:05:34,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-10 12:05:34,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-10 12:05:34,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-10 12:05:34,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 12:05:34" (1/2) ... [2022-10-10 12:05:34,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d3c198 and model type array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 12:05:34, skipping insertion in model container [2022-10-10 12:05:34,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 12:05:34" (2/2) ... [2022-10-10 12:05:34,994 INFO L112 eAbstractionObserver]: Analyzing ICFG array-sum-with-log-4threads.bpl [2022-10-10 12:05:35,005 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-10 12:05:35,014 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-10 12:05:35,014 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-10 12:05:35,014 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-10 12:05:35,116 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-10-10 12:05:35,207 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-10 12:05:35,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-10 12:05:35,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-10 12:05:35,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-10 12:05:35,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-10 12:05:35,254 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-10 12:05:35,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-10 12:05:35,285 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@1c60710b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-10 12:05:35,285 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-10 12:05:40,249 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 12:05:40,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 12:05:40,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1973794362, now seen corresponding path program 1 times [2022-10-10 12:05:40,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 12:05:40,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006592403] [2022-10-10 12:05:40,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 12:05:40,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 12:05:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 12:05:42,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3549 backedges. 591 proven. 2816 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-10-10 12:05:42,012 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 12:05:42,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006592403] [2022-10-10 12:05:42,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006592403] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 12:05:42,013 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 12:05:42,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2022-10-10 12:05:42,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530609749] [2022-10-10 12:05:42,040 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 12:05:42,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-10 12:05:42,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 12:05:42,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-10 12:05:42,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=980, Unknown=0, NotChecked=0, Total=1190 [2022-10-10 12:05:42,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:05:42,110 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 12:05:42,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 14.085714285714285) internal successors, (493), 35 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-10 12:05:42,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:05:51,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-10 12:05:51,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-10 12:05:51,198 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 12:05:51,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 12:05:51,199 INFO L85 PathProgramCache]: Analyzing trace with hash -857669135, now seen corresponding path program 2 times [2022-10-10 12:05:51,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 12:05:51,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344694185] [2022-10-10 12:05:51,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 12:05:51,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 12:05:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 12:05:52,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 845 proven. 1247 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-10-10 12:05:52,083 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 12:05:52,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344694185] [2022-10-10 12:05:52,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344694185] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 12:05:52,083 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 12:05:52,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2022-10-10 12:05:52,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98892574] [2022-10-10 12:05:52,084 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 12:05:52,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-10 12:05:52,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 12:05:52,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-10 12:05:52,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2022-10-10 12:05:52,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:05:52,088 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 12:05:52,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 11.028571428571428) internal successors, (386), 35 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-10 12:05:52,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-10-10 12:05:52,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:05:59,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-10 12:05:59,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:05:59,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-10 12:05:59,088 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 12:05:59,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 12:05:59,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1111014365, now seen corresponding path program 3 times [2022-10-10 12:05:59,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 12:05:59,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845926813] [2022-10-10 12:05:59,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 12:05:59,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 12:05:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 12:05:59,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1627 backedges. 898 proven. 706 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-10 12:05:59,802 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 12:05:59,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845926813] [2022-10-10 12:05:59,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845926813] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 12:05:59,803 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 12:05:59,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2022-10-10 12:05:59,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378792136] [2022-10-10 12:05:59,804 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 12:05:59,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-10 12:05:59,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 12:05:59,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-10 12:05:59,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=863, Unknown=0, NotChecked=0, Total=1190 [2022-10-10 12:05:59,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:05:59,806 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 12:05:59,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 10.142857142857142) internal successors, (355), 35 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-10 12:05:59,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-10-10 12:05:59,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:05:59,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:06:06,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-10 12:06:06,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:06,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:06,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-10 12:06:06,811 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 12:06:06,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 12:06:06,811 INFO L85 PathProgramCache]: Analyzing trace with hash 644128857, now seen corresponding path program 4 times [2022-10-10 12:06:06,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 12:06:06,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833926250] [2022-10-10 12:06:06,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 12:06:06,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 12:06:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 12:06:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 897 proven. 596 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-10 12:06:07,448 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 12:06:07,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833926250] [2022-10-10 12:06:07,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833926250] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 12:06:07,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 12:06:07,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2022-10-10 12:06:07,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189129552] [2022-10-10 12:06:07,449 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 12:06:07,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-10 12:06:07,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 12:06:07,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-10 12:06:07,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=324, Invalid=798, Unknown=0, NotChecked=0, Total=1122 [2022-10-10 12:06:07,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:06:07,451 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 12:06:07,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.117647058823529) internal successors, (344), 34 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-10 12:06:07,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-10-10 12:06:07,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:07,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:07,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:06:14,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-10 12:06:14,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:14,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:14,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-10 12:06:14,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-10 12:06:14,430 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 12:06:14,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 12:06:14,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1302519488, now seen corresponding path program 5 times [2022-10-10 12:06:14,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 12:06:14,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499243667] [2022-10-10 12:06:14,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 12:06:14,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 12:06:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 12:06:15,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 819 proven. 574 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-10 12:06:15,042 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 12:06:15,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499243667] [2022-10-10 12:06:15,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499243667] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 12:06:15,043 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 12:06:15,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2022-10-10 12:06:15,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135480984] [2022-10-10 12:06:15,043 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 12:06:15,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-10 12:06:15,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 12:06:15,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-10 12:06:15,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=756, Unknown=0, NotChecked=0, Total=1056 [2022-10-10 12:06:15,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:06:15,045 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 12:06:15,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 10.090909090909092) internal successors, (333), 33 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-10 12:06:15,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-10-10 12:06:15,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:15,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:15,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-10-10 12:06:15,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:06:22,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-10 12:06:22,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:22,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:22,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-10 12:06:22,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-10 12:06:22,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-10 12:06:22,094 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 12:06:22,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 12:06:22,094 INFO L85 PathProgramCache]: Analyzing trace with hash -228514016, now seen corresponding path program 6 times [2022-10-10 12:06:22,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 12:06:22,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936109792] [2022-10-10 12:06:22,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 12:06:22,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 12:06:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 12:06:22,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1760 backedges. 790 proven. 947 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-10 12:06:22,966 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 12:06:22,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936109792] [2022-10-10 12:06:22,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936109792] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 12:06:22,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 12:06:22,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2022-10-10 12:06:22,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440113243] [2022-10-10 12:06:22,966 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 12:06:22,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-10 12:06:22,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 12:06:22,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-10 12:06:22,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2022-10-10 12:06:22,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:06:22,968 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 12:06:22,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.166666666666666) internal successors, (366), 36 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-10 12:06:22,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-10-10 12:06:22,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:22,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:22,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-10-10 12:06:22,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-10-10 12:06:22,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:06:30,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-10 12:06:30,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:30,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:30,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-10 12:06:30,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-10 12:06:30,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-10-10 12:06:30,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-10 12:06:30,343 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 12:06:30,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 12:06:30,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1223290244, now seen corresponding path program 7 times [2022-10-10 12:06:30,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 12:06:30,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452079229] [2022-10-10 12:06:30,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 12:06:30,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 12:06:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 12:06:30,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1638 backedges. 767 proven. 848 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-10 12:06:30,919 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 12:06:30,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452079229] [2022-10-10 12:06:30,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452079229] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 12:06:30,919 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 12:06:30,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2022-10-10 12:06:30,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628107050] [2022-10-10 12:06:30,919 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 12:06:30,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-10 12:06:30,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 12:06:30,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-10 12:06:30,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=901, Unknown=0, NotChecked=0, Total=1190 [2022-10-10 12:06:30,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:06:30,921 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 12:06:30,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 10.142857142857142) internal successors, (355), 35 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-10 12:06:30,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-10-10 12:06:30,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:30,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:30,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-10-10 12:06:30,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-10-10 12:06:30,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-10-10 12:06:30,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:06:38,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-10 12:06:38,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:38,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:38,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-10 12:06:38,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-10 12:06:38,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-10-10 12:06:38,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:38,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-10 12:06:38,231 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 12:06:38,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 12:06:38,232 INFO L85 PathProgramCache]: Analyzing trace with hash -2073870159, now seen corresponding path program 8 times [2022-10-10 12:06:38,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 12:06:38,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811496150] [2022-10-10 12:06:38,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 12:06:38,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 12:06:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 12:06:38,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1527 backedges. 755 proven. 749 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-10 12:06:38,767 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 12:06:38,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811496150] [2022-10-10 12:06:38,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811496150] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 12:06:38,768 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 12:06:38,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2022-10-10 12:06:38,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502029128] [2022-10-10 12:06:38,768 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 12:06:38,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-10 12:06:38,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 12:06:38,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-10 12:06:38,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2022-10-10 12:06:38,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 12:06:38,772 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 12:06:38,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.117647058823529) internal successors, (344), 34 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-10 12:06:38,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-10-10 12:06:38,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:38,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:38,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-10-10 12:06:38,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-10-10 12:06:38,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-10-10 12:06:38,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-10-10 12:06:38,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.