/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/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf --traceabstraction.coinflip.probability.value 15 --traceabstraction.coinflip.random.seed 0 --traceabstraction.coinflip.budget.determination.mode FALLBACK -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 16:41:49,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-10 16:41:49,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-10 16:41:49,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-10 16:41:49,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-10 16:41:49,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-10 16:41:49,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-10 16:41:49,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-10 16:41:49,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-10 16:41:49,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-10 16:41:49,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-10 16:41:49,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-10 16:41:49,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-10 16:41:49,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-10 16:41:49,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-10 16:41:49,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-10 16:41:49,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-10 16:41:49,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-10 16:41:49,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-10 16:41:49,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-10 16:41:49,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-10 16:41:49,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-10 16:41:49,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-10 16:41:49,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-10 16:41:49,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-10 16:41:49,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-10 16:41:49,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-10 16:41:49,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-10 16:41:49,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-10 16:41:49,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-10 16:41:49,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-10 16:41:49,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-10 16:41:49,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-10 16:41:49,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-10 16:41:49,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-10 16:41:49,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-10 16:41:49,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-10 16:41:49,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-10 16:41:49,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-10 16:41:49,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-10 16:41:49,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-10 16:41:49,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf [2022-10-10 16:41:49,242 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-10 16:41:49,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-10 16:41:49,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-10 16:41:49,243 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-10 16:41:49,243 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-10 16:41:49,243 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-10 16:41:49,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-10 16:41:49,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-10 16:41:49,244 INFO L138 SettingsManager]: * Use SBE=true [2022-10-10 16:41:49,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-10 16:41:49,244 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-10 16:41:49,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-10 16:41:49,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-10 16:41:49,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-10 16:41:49,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-10 16:41:49,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-10 16:41:49,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-10 16:41:49,245 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-10 16:41:49,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-10 16:41:49,245 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-10 16:41:49,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-10 16:41:49,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-10 16:41:49,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-10 16:41:49,245 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-10 16:41:49,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-10 16:41:49,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-10 16:41:49,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-10 16:41:49,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-10 16:41:49,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-10 16:41:49,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-10 16:41:49,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-10 16:41:49,246 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-10 16:41:49,246 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-10 16:41:49,246 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-10 16:41:49,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-10 16:41:49,246 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-10 16:41:49,246 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-10 16:41:49,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-10 16:41:49,247 INFO L138 SettingsManager]: * Number of independence relations to use for POR=2 [2022-10-10 16:41:49,247 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip probability value -> 15 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip random seed -> 0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip budget determination mode -> FALLBACK [2022-10-10 16:41:49,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-10 16:41:49,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-10 16:41:49,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-10 16:41:49,500 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-10 16:41:49,501 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-10 16:41:49,502 INFO L432 ainManager$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 16:41:49,502 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 16:41:49,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-10 16:41:49,529 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-10 16:41:49,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-10 16:41:49,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-10 16:41:49,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-10 16:41:49,539 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 04:41:49" (1/1) ... [2022-10-10 16:41:49,546 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 04:41:49" (1/1) ... [2022-10-10 16:41:49,558 INFO L138 Inliner]: procedures = 3, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2022-10-10 16:41:49,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-10 16:41:49,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-10 16:41:49,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-10 16:41:49,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-10 16:41:49,567 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 04:41:49" (1/1) ... [2022-10-10 16:41:49,567 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 04:41:49" (1/1) ... [2022-10-10 16:41:49,568 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 04:41:49" (1/1) ... [2022-10-10 16:41:49,569 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 04:41:49" (1/1) ... [2022-10-10 16:41:49,571 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 04:41:49" (1/1) ... [2022-10-10 16:41:49,575 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 04:41:49" (1/1) ... [2022-10-10 16:41:49,576 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 04:41:49" (1/1) ... [2022-10-10 16:41:49,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-10 16:41:49,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-10 16:41:49,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-10 16:41:49,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-10 16:41:49,578 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 04:41:49" (1/1) ... [2022-10-10 16:41:49,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-10 16:41:49,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-10 16:41:49,609 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 16:41:49,616 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 16:41:49,638 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-10-10 16:41:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-10 16:41:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-10 16:41:49,639 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sum given in one single declaration [2022-10-10 16:41:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-10-10 16:41:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-10-10 16:41:49,639 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 16:41:49,673 INFO L234 CfgBuilder]: Building ICFG [2022-10-10 16:41:49,674 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-10 16:41:49,744 INFO L275 CfgBuilder]: Performing block encoding [2022-10-10 16:41:49,754 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-10 16:41:49,754 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-10 16:41:49,756 INFO L202 PluginConnector]: Adding new model array-sum-with-log-4threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:41:49 BoogieIcfgContainer [2022-10-10 16:41:49,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-10 16:41:49,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-10 16:41:49,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-10 16:41:49,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-10 16:41:49,759 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 04:41:49" (1/2) ... [2022-10-10 16:41:49,760 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 04:41:49, skipping insertion in model container [2022-10-10 16:41:49,760 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 04:41:49" (2/2) ... [2022-10-10 16:41:49,761 INFO L112 eAbstractionObserver]: Analyzing ICFG array-sum-with-log-4threads.bpl [2022-10-10 16:41:49,766 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-10 16:41:49,772 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-10 16:41:49,772 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-10 16:41:49,772 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-10 16:41:49,828 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-10-10 16:41:49,856 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-10 16:41:49,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-10 16:41:49,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-10 16:41:49,858 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 16:41:49,859 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 16:41:49,874 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-10 16:41:49,885 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2022-10-10 16:41:49,886 WARN L162 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2022-10-10 16:41:49,886 WARN L163 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2022-10-10 16:41:49,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-10 16:41:49,895 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;@5c88b85f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-10 16:41:49,896 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-10 16:41:53,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 16:41:53,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 16:41:53,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1488063055, now seen corresponding path program 1 times [2022-10-10 16:41:53,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 16:41:53,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141565755] [2022-10-10 16:41:53,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 16:41:53,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 16:41:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 16:41:54,127 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-10 16:41:54,128 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 16:41:54,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141565755] [2022-10-10 16:41:54,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141565755] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-10 16:41:54,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-10 16:41:54,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-10 16:41:54,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105634508] [2022-10-10 16:41:54,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-10 16:41:54,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-10 16:41:54,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 16:41:54,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-10 16:41:54,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-10 16:41:54,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:41:54,275 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 16:41:54,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 16:41:54,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:41:55,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-10 16:41:55,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-10 16:41:55,153 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 16:41:55,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 16:41:55,153 INFO L85 PathProgramCache]: Analyzing trace with hash 2057795055, now seen corresponding path program 1 times [2022-10-10 16:41:55,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 16:41:55,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535826949] [2022-10-10 16:41:55,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 16:41:55,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 16:41:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 16:41:55,262 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 72 proven. 11 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-10 16:41:55,262 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 16:41:55,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535826949] [2022-10-10 16:41:55,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535826949] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 16:41:55,263 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 16:41:55,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2022-10-10 16:41:55,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817454897] [2022-10-10 16:41:55,263 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 16:41:55,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-10 16:41:55,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 16:41:55,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-10 16:41:55,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-10 16:41:55,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:41:55,267 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 16:41:55,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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 16:41:55,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-10 16:41:55,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:41:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-10 16:41:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:41:59,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-10 16:41:59,730 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 16:41:59,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 16:41:59,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1419684749, now seen corresponding path program 2 times [2022-10-10 16:41:59,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 16:41:59,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089754406] [2022-10-10 16:41:59,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 16:41:59,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 16:41:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 16:41:59,868 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 82 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-10 16:41:59,868 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 16:41:59,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089754406] [2022-10-10 16:41:59,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089754406] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 16:41:59,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 16:41:59,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2022-10-10 16:41:59,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185305684] [2022-10-10 16:41:59,870 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 16:41:59,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-10 16:41:59,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 16:41:59,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-10 16:41:59,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-10 16:41:59,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:41:59,872 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 16:41:59,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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 16:41:59,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-10 16:41:59,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:41:59,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:42:03,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-10 16:42:03,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:03,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-10 16:42:03,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-10 16:42:03,499 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 16:42:03,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 16:42:03,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1562945444, now seen corresponding path program 3 times [2022-10-10 16:42:03,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 16:42:03,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452114057] [2022-10-10 16:42:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 16:42:03,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 16:42:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 16:42:03,783 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-10 16:42:03,784 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 16:42:03,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452114057] [2022-10-10 16:42:03,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452114057] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 16:42:03,789 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 16:42:03,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2022-10-10 16:42:03,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314269236] [2022-10-10 16:42:03,791 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 16:42:03,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-10 16:42:03,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 16:42:03,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-10 16:42:03,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-10 16:42:03,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:42:03,798 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 16:42:03,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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 16:42:03,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-10 16:42:03,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:03,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-10 16:42:03,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:42:14,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-10 16:42:14,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:14,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-10 16:42:14,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:14,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-10 16:42:14,647 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 16:42:14,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 16:42:14,648 INFO L85 PathProgramCache]: Analyzing trace with hash 435568608, now seen corresponding path program 4 times [2022-10-10 16:42:14,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 16:42:14,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595333546] [2022-10-10 16:42:14,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 16:42:14,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 16:42:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 16:42:14,697 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-10 16:42:14,697 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 16:42:14,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595333546] [2022-10-10 16:42:14,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595333546] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 16:42:14,698 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 16:42:14,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2022-10-10 16:42:14,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453966855] [2022-10-10 16:42:14,698 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 16:42:14,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-10 16:42:14,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 16:42:14,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-10 16:42:14,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-10 16:42:14,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:42:14,699 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 16:42:14,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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 16:42:14,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-10 16:42:14,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:14,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-10 16:42:14,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:14,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:42:28,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-10 16:42:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-10 16:42:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-10 16:42:28,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-10 16:42:28,182 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 16:42:28,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 16:42:28,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1179046078, now seen corresponding path program 5 times [2022-10-10 16:42:28,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 16:42:28,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312245595] [2022-10-10 16:42:28,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 16:42:28,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 16:42:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 16:42:28,223 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-10 16:42:28,223 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 16:42:28,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312245595] [2022-10-10 16:42:28,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312245595] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 16:42:28,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 16:42:28,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2022-10-10 16:42:28,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520129095] [2022-10-10 16:42:28,224 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 16:42:28,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-10 16:42:28,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 16:42:28,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-10 16:42:28,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-10 16:42:28,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:42:28,225 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 16:42:28,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 16:42:28,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-10 16:42:28,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:28,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-10 16:42:28,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:28,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-10 16:42:28,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:42:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-10 16:42:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-10 16:42:57,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:57,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-10 16:42:57,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:57,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-10 16:42:57,251 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 16:42:57,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 16:42:57,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1929654798, now seen corresponding path program 6 times [2022-10-10 16:42:57,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 16:42:57,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155374] [2022-10-10 16:42:57,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 16:42:57,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 16:42:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 16:42:57,378 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 26 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-10 16:42:57,378 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 16:42:57,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155374] [2022-10-10 16:42:57,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155374] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 16:42:57,381 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 16:42:57,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2022-10-10 16:42:57,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845682026] [2022-10-10 16:42:57,389 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 16:42:57,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-10 16:42:57,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 16:42:57,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-10 16:42:57,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-10 16:42:57,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:42:57,391 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 16:42:57,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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 16:42:57,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-10 16:42:57,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:57,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-10 16:42:57,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:57,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-10 16:42:57,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-10 16:42:57,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.