/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-07 05:01:08,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 05:01:08,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 05:01:08,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-07 05:01:08,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-07 05:01:08,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-07 05:01:08,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-07 05:01:08,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-07 05:01:08,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-07 05:01:08,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-07 05:01:08,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-07 05:01:08,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-07 05:01:08,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-07 05:01:08,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-07 05:01:08,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-07 05:01:08,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-07 05:01:08,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-07 05:01:08,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-07 05:01:08,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-07 05:01:08,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-07 05:01:08,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-07 05:01:08,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-07 05:01:08,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-07 05:01:08,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-07 05:01:08,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-07 05:01:08,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-07 05:01:08,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-07 05:01:08,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-07 05:01:08,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-07 05:01:08,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-07 05:01:08,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-07 05:01:08,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-07 05:01:08,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-07 05:01:08,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-07 05:01:08,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-07 05:01:08,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-07 05:01:08,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-07 05:01:08,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-07 05:01:08,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-07 05:01:08,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-07 05:01:08,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-07 05:01:08,683 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random7777.epf [2021-06-07 05:01:08,715 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 05:01:08,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 05:01:08,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 05:01:08,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 05:01:08,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 05:01:08,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 05:01:08,719 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 05:01:08,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 05:01:08,719 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 05:01:08,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 05:01:08,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 05:01:08,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 05:01:08,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 05:01:08,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 05:01:08,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 05:01:08,720 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 05:01:08,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 05:01:08,721 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 05:01:08,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 05:01:08,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 05:01:08,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 05:01:08,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 05:01:08,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 05:01:08,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 05:01:08,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 05:01:08,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 05:01:08,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 05:01:08,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 05:01:08,722 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-07 05:01:08,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 05:01:08,722 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 05:01:08,723 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 05:01:08,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 05:01:08,723 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 05:01:08,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-07 05:01:08,723 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 05:01:08,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 05:01:09,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 05:01:09,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 05:01:09,028 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 05:01:09,029 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 05:01:09,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl [2021-06-07 05:01:09,030 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl' [2021-06-07 05:01:09,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 05:01:09,061 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 05:01:09,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 05:01:09,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 05:01:09,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 05:01:09,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 05:01:09" (1/1) ... [2021-06-07 05:01:09,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 05:01:09" (1/1) ... [2021-06-07 05:01:09,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 05:01:09,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 05:01:09,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 05:01:09,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 05:01:09,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 05:01:09" (1/1) ... [2021-06-07 05:01:09,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 05:01:09" (1/1) ... [2021-06-07 05:01:09,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 05:01:09" (1/1) ... [2021-06-07 05:01:09,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 05:01:09" (1/1) ... [2021-06-07 05:01:09,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 05:01:09" (1/1) ... [2021-06-07 05:01:09,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 05:01:09" (1/1) ... [2021-06-07 05:01:09,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 05:01:09" (1/1) ... [2021-06-07 05:01:09,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 05:01:09,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 05:01:09,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 05:01:09,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 05:01:09,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 05:01:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 05:01:09,165 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-07 05:01:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-07 05:01:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-07 05:01:09,165 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-07 05:01:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-07 05:01:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-07 05:01:09,165 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 05:01:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 05:01:09,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 05:01:09,167 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-07 05:01:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-07 05:01:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-07 05:01:09,168 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 05:01:09,365 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 05:01:09,365 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-07 05:01:09,367 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 05:01:09 BoogieIcfgContainer [2021-06-07 05:01:09,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 05:01:09,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 05:01:09,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 05:01:09,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 05:01:09,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 05:01:09" (1/2) ... [2021-06-07 05:01:09,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dba919 and model type sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 05:01:09, skipping insertion in model container [2021-06-07 05:01:09,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 05:01:09" (2/2) ... [2021-06-07 05:01:09,373 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun.wvr.bpl [2021-06-07 05:01:09,377 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 05:01:09,377 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 05:01:09,378 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-07 05:01:09,378 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 05:01:09,419 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-07 05:01:09,446 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-07 05:01:09,514 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 05:01:09,514 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 05:01:09,514 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 05:01:09,514 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 05:01:09,514 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 05:01:09,515 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 05:01:09,515 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 05:01:09,515 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 05:01:09,544 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 05:01:09,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 05:01:09,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1905972972, now seen corresponding path program 1 times [2021-06-07 05:01:09,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 05:01:09,556 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996400680] [2021-06-07 05:01:09,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 05:01:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 05:01:09,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:09,761 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 05:01:09,761 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996400680] [2021-06-07 05:01:09,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996400680] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 05:01:09,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 05:01:09,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-07 05:01:09,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194927976] [2021-06-07 05:01:09,766 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-07 05:01:09,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 05:01:09,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-07 05:01:09,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-07 05:01:09,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:09,779 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 05:01:09,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-06-07 05:01:09,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:09,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:09,851 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-07 05:01:09,851 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 05:01:09,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 05:01:09,854 INFO L82 PathProgramCache]: Analyzing trace with hash -926131680, now seen corresponding path program 1 times [2021-06-07 05:01:09,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 05:01:09,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728916552] [2021-06-07 05:01:09,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 05:01:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 05:01:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-07 05:01:09,918 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 05:01:09,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728916552] [2021-06-07 05:01:09,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728916552] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 05:01:09,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 05:01:09,919 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-07 05:01:09,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660987310] [2021-06-07 05:01:09,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 05:01:09,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 05:01:09,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 05:01:09,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-07 05:01:09,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:09,922 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 05:01:09,922 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-06-07 05:01:09,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:09,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:09,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:09,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:09,983 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-07 05:01:09,983 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 05:01:09,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 05:01:09,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1784765650, now seen corresponding path program 1 times [2021-06-07 05:01:09,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 05:01:09,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178158297] [2021-06-07 05:01:09,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 05:01:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 05:01:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:10,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 05:01:10,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178158297] [2021-06-07 05:01:10,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178158297] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:10,348 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103552704] [2021-06-07 05:01:10,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 05:01:10,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-07 05:01:10,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 05:01:10,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-07 05:01:10,611 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 05:01:10,617 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 05:01:10,621 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 05:01:10,621 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:7 [2021-06-07 05:01:10,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:10,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103552704] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:10,654 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 05:01:10,654 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-07 05:01:10,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975217917] [2021-06-07 05:01:10,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-07 05:01:10,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 05:01:10,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-07 05:01:10,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-06-07 05:01:10,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:10,656 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 05:01:10,656 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 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) [2021-06-07 05:01:10,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:10,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:10,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:10,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:10,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:10,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:11,029 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:11,029 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 05:01:11,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 05:01:11,030 INFO L82 PathProgramCache]: Analyzing trace with hash 269718836, now seen corresponding path program 2 times [2021-06-07 05:01:11,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 05:01:11,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161719065] [2021-06-07 05:01:11,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 05:01:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 05:01:11,091 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:11,092 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 05:01:11,092 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161719065] [2021-06-07 05:01:11,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161719065] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:11,092 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658375477] [2021-06-07 05:01:11,092 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:11,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 05:01:11,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 05:01:11,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-07 05:01:11,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 05:01:11,225 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:11,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658375477] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:11,225 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 05:01:11,226 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-06-07 05:01:11,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091668723] [2021-06-07 05:01:11,226 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-07 05:01:11,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 05:01:11,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-07 05:01:11,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-06-07 05:01:11,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:11,227 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 05:01:11,228 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 13 states have internal predecessors, (39), 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) [2021-06-07 05:01:11,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:11,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:11,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:11,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:11,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:11,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:11,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:11,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 05:01:11,637 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:11,637 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 05:01:11,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 05:01:11,638 INFO L82 PathProgramCache]: Analyzing trace with hash 325274864, now seen corresponding path program 3 times [2021-06-07 05:01:11,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 05:01:11,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076063478] [2021-06-07 05:01:11,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 05:01:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 05:01:11,724 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:11,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 05:01:11,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076063478] [2021-06-07 05:01:11,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076063478] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:11,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363295517] [2021-06-07 05:01:11,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:11,771 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-07 05:01:11,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 05:01:11,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-07 05:01:11,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 05:01:11,846 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:11,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363295517] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:11,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 05:01:11,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-06-07 05:01:11,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682679012] [2021-06-07 05:01:11,847 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-07 05:01:11,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 05:01:11,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-07 05:01:11,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-06-07 05:01:11,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:11,848 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 05:01:11,848 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 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) [2021-06-07 05:01:11,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:11,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:11,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:11,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 05:01:11,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:12,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:12,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:12,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:12,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 05:01:12,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 05:01:12,221 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:12,221 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 05:01:12,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 05:01:12,222 INFO L82 PathProgramCache]: Analyzing trace with hash -2141588014, now seen corresponding path program 4 times [2021-06-07 05:01:12,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 05:01:12,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756387594] [2021-06-07 05:01:12,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 05:01:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 05:01:12,593 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:12,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 05:01:12,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756387594] [2021-06-07 05:01:12,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756387594] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:12,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512505983] [2021-06-07 05:01:12,595 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:12,630 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 05:01:12,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 05:01:12,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-07 05:01:12,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 05:01:12,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 05:01:12,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-06-07 05:01:12,784 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 05:01:12,790 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 05:01:12,791 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 05:01:12,791 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:7 [2021-06-07 05:01:12,816 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:12,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512505983] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:12,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 05:01:12,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 15 [2021-06-07 05:01:12,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727189019] [2021-06-07 05:01:12,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-07 05:01:12,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 05:01:12,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-07 05:01:12,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-06-07 05:01:12,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:12,818 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 05:01:12,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 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) [2021-06-07 05:01:12,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:12,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:12,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:12,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 05:01:12,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 05:01:12,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 05:01:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 05:01:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 05:01:13,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-07 05:01:13,457 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 05:01:13,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 05:01:13,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1974866380, now seen corresponding path program 5 times [2021-06-07 05:01:13,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 05:01:13,458 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188483207] [2021-06-07 05:01:13,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 05:01:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 05:01:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:13,524 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 05:01:13,524 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188483207] [2021-06-07 05:01:13,524 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188483207] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:13,524 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629740186] [2021-06-07 05:01:13,524 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:13,568 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-07 05:01:13,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 05:01:13,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-07 05:01:13,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 05:01:13,717 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:13,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629740186] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:13,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 05:01:13,718 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2021-06-07 05:01:13,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366638205] [2021-06-07 05:01:13,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-07 05:01:13,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 05:01:13,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-07 05:01:13,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-06-07 05:01:13,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:13,720 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 05:01:13,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 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) [2021-06-07 05:01:13,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:13,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:13,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:13,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 05:01:13,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 05:01:13,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 05:01:13,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:14,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:14,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:14,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:14,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 05:01:14,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 05:01:14,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 05:01:14,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 05:01:14,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:14,354 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 05:01:14,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 05:01:14,355 INFO L82 PathProgramCache]: Analyzing trace with hash -125131024, now seen corresponding path program 6 times [2021-06-07 05:01:14,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 05:01:14,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743506845] [2021-06-07 05:01:14,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 05:01:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 05:01:14,422 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:14,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 05:01:14,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743506845] [2021-06-07 05:01:14,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743506845] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:14,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998162006] [2021-06-07 05:01:14,423 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:14,476 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-07 05:01:14,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 05:01:14,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-07 05:01:14,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 05:01:14,571 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:14,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998162006] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:14,571 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 05:01:14,571 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2021-06-07 05:01:14,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149687607] [2021-06-07 05:01:14,572 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-07 05:01:14,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 05:01:14,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-07 05:01:14,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-07 05:01:14,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:14,572 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 05:01:14,572 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 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) [2021-06-07 05:01:14,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:14,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:14,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:14,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 05:01:14,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 05:01:14,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 05:01:14,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 05:01:14,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:14,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:14,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:14,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:14,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 05:01:14,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 05:01:14,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 05:01:14,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 05:01:14,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 05:01:14,964 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:14,965 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 05:01:14,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 05:01:14,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1189949486, now seen corresponding path program 7 times [2021-06-07 05:01:14,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 05:01:14,965 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971077936] [2021-06-07 05:01:14,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 05:01:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 05:01:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:15,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 05:01:15,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971077936] [2021-06-07 05:01:15,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971077936] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:15,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817438073] [2021-06-07 05:01:15,389 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 05:01:15,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-07 05:01:15,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 05:01:15,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 05:01:15,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 05:01:15,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 05:01:15,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2021-06-07 05:01:15,683 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 05:01:15,689 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 05:01:15,696 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 05:01:15,696 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:42, output treesize:7 [2021-06-07 05:01:15,720 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:15,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817438073] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:15,720 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 05:01:15,720 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 19 [2021-06-07 05:01:15,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708271259] [2021-06-07 05:01:15,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-07 05:01:15,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 05:01:15,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-07 05:01:15,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2021-06-07 05:01:15,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:15,725 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 05:01:15,725 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 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) [2021-06-07 05:01:15,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:15,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:15,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:15,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 05:01:15,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 05:01:15,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 05:01:15,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 05:01:15,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 05:01:15,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 05:01:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 05:01:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 05:01:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 05:01:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 05:01:16,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-07 05:01:16,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-06-07 05:01:16,668 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 05:01:16,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 05:01:16,669 INFO L82 PathProgramCache]: Analyzing trace with hash 2016692276, now seen corresponding path program 8 times [2021-06-07 05:01:16,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 05:01:16,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461769265] [2021-06-07 05:01:16,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 05:01:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 05:01:16,777 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:16,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 05:01:16,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461769265] [2021-06-07 05:01:16,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461769265] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:16,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358973292] [2021-06-07 05:01:16,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:16,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 05:01:16,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 05:01:16,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-07 05:01:16,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 05:01:16,979 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:16,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358973292] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:16,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 05:01:16,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2021-06-07 05:01:16,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389485678] [2021-06-07 05:01:16,980 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-07 05:01:16,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 05:01:16,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-07 05:01:16,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2021-06-07 05:01:16,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:16,981 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 05:01:16,981 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 21 states have internal predecessors, (55), 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) [2021-06-07 05:01:16,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:16,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:16,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:16,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 05:01:16,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 05:01:16,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 05:01:16,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 05:01:16,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 05:01:16,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-07 05:01:16,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 05:01:17,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 05:01:17,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 05:01:17,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 05:01:17,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 05:01:17,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 05:01:17,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 05:01:17,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 05:01:17,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 05:01:17,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-07 05:01:17,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-07 05:01:17,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:17,916 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 05:01:17,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 05:01:17,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1851206354, now seen corresponding path program 9 times [2021-06-07 05:01:17,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 05:01:17,917 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266690287] [2021-06-07 05:01:17,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 05:01:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 05:01:18,553 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 05:01:18,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 05:01:18,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266690287] [2021-06-07 05:01:18,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266690287] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 05:01:18,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481233080] [2021-06-07 05:01:18,554 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:01:18,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-07 05:01:18,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 05:01:18,598 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 44 conjunts are in the unsatisfiable core [2021-06-07 05:01:18,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 05:01:19,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 05:01:19,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 05:01:19,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 05:01:19,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 05:01:19,408 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 05:01:19,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 39 treesize of output 125 [2021-06-07 05:01:19,915 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 289 Received shutdown request... [2021-06-07 05:15:50,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 05:15:50,486 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-07 05:15:50,491 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-07 05:15:50,493 WARN L196 ceAbstractionStarter]: Timeout [2021-06-07 05:15:50,493 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.06 05:15:50 BasicIcfg [2021-06-07 05:15:50,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-07 05:15:50,493 INFO L168 Benchmark]: Toolchain (without parser) took 881432.76 ms. Allocated memory was 352.3 MB in the beginning and 736.1 MB in the end (delta: 383.8 MB). Free memory was 332.1 MB in the beginning and 448.6 MB in the end (delta: -116.5 MB). Peak memory consumption was 452.0 MB. Max. memory is 16.0 GB. [2021-06-07 05:15:50,494 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 352.3 MB. Free memory was 333.3 MB in the beginning and 333.2 MB in the end (delta: 65.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-07 05:15:50,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.67 ms. Allocated memory is still 352.3 MB. Free memory was 332.0 MB in the beginning and 330.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-07 05:15:50,494 INFO L168 Benchmark]: Boogie Preprocessor took 16.97 ms. Allocated memory is still 352.3 MB. Free memory was 330.6 MB in the beginning and 329.6 MB in the end (delta: 946.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-07 05:15:50,494 INFO L168 Benchmark]: RCFGBuilder took 255.85 ms. Allocated memory is still 352.3 MB. Free memory was 329.6 MB in the beginning and 316.8 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-07 05:15:50,494 INFO L168 Benchmark]: TraceAbstraction took 881124.76 ms. Allocated memory was 352.3 MB in the beginning and 736.1 MB in the end (delta: 383.8 MB). Free memory was 316.4 MB in the beginning and 448.6 MB in the end (delta: -132.3 MB). Peak memory consumption was 435.2 MB. Max. memory is 16.0 GB. [2021-06-07 05:15:50,494 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 352.3 MB. Free memory was 333.3 MB in the beginning and 333.2 MB in the end (delta: 65.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 30.67 ms. Allocated memory is still 352.3 MB. Free memory was 332.0 MB in the beginning and 330.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.97 ms. Allocated memory is still 352.3 MB. Free memory was 330.6 MB in the beginning and 329.6 MB in the end (delta: 946.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 255.85 ms. Allocated memory is still 352.3 MB. Free memory was 329.6 MB in the beginning and 316.8 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 881124.76 ms. Allocated memory was 352.3 MB in the beginning and 736.1 MB in the end (delta: 383.8 MB). Free memory was 316.4 MB in the beginning and 448.6 MB in the end (delta: -132.3 MB). Peak memory consumption was 435.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1015, positive: 741, positive conditional: 741, positive unconditional: 0, negative: 274, negative conditional: 274, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 741, positive: 741, positive conditional: 741, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 741, positive: 741, positive conditional: 0, positive unconditional: 741, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 741, positive: 705, positive conditional: 0, positive unconditional: 705, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 36, unknown conditional: 0, unknown unconditional: 36] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 274 - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 35 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations,while QuantifierPusher was running 526 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 881019.5ms, OverallIterations: 11, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.4ms, PartialOrderReductionTime: 3135.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 149, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 54.7ms SsaConstructionTime, 198.8ms SatisfiabilityAnalysisTime, 2953.0ms InterpolantComputationTime, 466 NumberOfCodeBlocks, 466 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 448 ConstructedInterpolants, 0 QuantifiedInterpolants, 4327 SizeOfPredicates, 36 NumberOfNonLiveVariables, 559 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 18 InterpolantComputations, 2 PerfectInterpolantSequences, 69/179 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown