/usr/bin/java -Xmx8000000000 -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-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 07:25:07,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 07:25:07,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 07:25:07,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-17 07:25:07,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-17 07:25:07,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-17 07:25:07,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-17 07:25:07,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-17 07:25:07,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-17 07:25:07,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-17 07:25:07,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-17 07:25:07,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-17 07:25:07,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-17 07:25:07,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-17 07:25:07,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-17 07:25:07,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-17 07:25:07,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-17 07:25:07,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-17 07:25:07,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-17 07:25:07,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-17 07:25:07,325 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-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-06-17 07:25:07,363 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 07:25:07,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 07:25:07,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 07:25:07,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 07:25:07,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 07:25:07,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 07:25:07,366 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 07:25:07,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 07:25:07,366 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 07:25:07,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 07:25:07,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 07:25:07,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 07:25:07,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 07:25:07,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 07:25:07,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 07:25:07,368 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 07:25:07,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 07:25:07,368 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 07:25:07,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 07:25:07,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 07:25:07,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 07:25:07,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 07:25:07,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 07:25:07,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 07:25:07,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 07:25:07,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 07:25:07,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 07:25:07,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 07:25:07,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 07:25:07,370 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 07:25:07,370 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 07:25:07,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 07:25:07,370 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 07:25:07,370 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 07:25:07,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 07:25:07,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 07:25:07,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 07:25:07,650 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 07:25:07,651 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 07:25:07,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts.wvr.bpl [2021-06-17 07:25:07,651 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts.wvr.bpl' [2021-06-17 07:25:07,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 07:25:07,686 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 07:25:07,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 07:25:07,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 07:25:07,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 07:25:07,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:25:07" (1/1) ... [2021-06-17 07:25:07,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:25:07" (1/1) ... [2021-06-17 07:25:07,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 07:25:07,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 07:25:07,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 07:25:07,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 07:25:07,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:25:07" (1/1) ... [2021-06-17 07:25:07,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:25:07" (1/1) ... [2021-06-17 07:25:07,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:25:07" (1/1) ... [2021-06-17 07:25:07,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:25:07" (1/1) ... [2021-06-17 07:25:07,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:25:07" (1/1) ... [2021-06-17 07:25:07,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:25:07" (1/1) ... [2021-06-17 07:25:07,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:25:07" (1/1) ... [2021-06-17 07:25:07,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 07:25:07,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 07:25:07,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 07:25:07,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 07:25:07,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:25:07" (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 [2021-06-17 07:25:07,778 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 07:25:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 07:25:07,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 07:25:07,778 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 07:25:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 07:25:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 07:25:07,779 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 07:25:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 07:25:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 07:25:07,779 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-17 07:25:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-17 07:25:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-17 07:25:07,780 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 07:25:08,009 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 07:25:08,009 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 07:25:08,011 INFO L202 PluginConnector]: Adding new model mts.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 07:25:08 BoogieIcfgContainer [2021-06-17 07:25:08,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 07:25:08,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 07:25:08,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 07:25:08,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 07:25:08,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:25:07" (1/2) ... [2021-06-17 07:25:08,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fda55b and model type mts.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 07:25:08, skipping insertion in model container [2021-06-17 07:25:08,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 07:25:08" (2/2) ... [2021-06-17 07:25:08,016 INFO L111 eAbstractionObserver]: Analyzing ICFG mts.wvr.bpl [2021-06-17 07:25:08,019 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 07:25:08,020 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 07:25:08,020 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 07:25:08,036 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 07:25:08,091 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-17 07:25:08,122 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 [2021-06-17 07:25:08,162 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 07:25:08,162 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 07:25:08,162 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 07:25:08,162 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 07:25:08,162 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 07:25:08,162 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 07:25:08,162 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 07:25:08,162 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 07:25:08,219 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:25:08,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:25:08,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1558799945, now seen corresponding path program 1 times [2021-06-17 07:25:08,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:25:08,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353514821] [2021-06-17 07:25:08,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:25:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:25:08,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:25:08,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:25:08,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353514821] [2021-06-17 07:25:08,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353514821] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 07:25:08,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 07:25:08,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 07:25:08,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48448899] [2021-06-17 07:25:08,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-17 07:25:08,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:25:08,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-17 07:25:08,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-17 07:25:08,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:25:08,383 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:25:08,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 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) [2021-06-17 07:25:08,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:25:08,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:25:08,469 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 07:25:08,469 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:25:08,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:25:08,472 INFO L82 PathProgramCache]: Analyzing trace with hash 42228775, now seen corresponding path program 1 times [2021-06-17 07:25:08,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:25:08,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274475960] [2021-06-17 07:25:08,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:25:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:25:08,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:25:08,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:25:08,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274475960] [2021-06-17 07:25:08,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274475960] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 07:25:08,514 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 07:25:08,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 07:25:08,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876180684] [2021-06-17 07:25:08,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-17 07:25:08,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:25:08,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-17 07:25:08,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-17 07:25:08,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:25:08,519 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:25:08,519 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) [2021-06-17 07:25:08,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:25:08,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:25:08,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:25:08,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:25:08,579 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-17 07:25:08,579 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:25:08,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:25:08,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1930946427, now seen corresponding path program 1 times [2021-06-17 07:25:08,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:25:08,580 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648067357] [2021-06-17 07:25:08,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:25:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:25:09,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:25:09,060 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:25:09,060 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648067357] [2021-06-17 07:25:09,060 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648067357] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:25:09,060 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835094798] [2021-06-17 07:25:09,060 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 [2021-06-17 07:25:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:25:09,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-17 07:25:09,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:25:09,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:25:09,503 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:25:09,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-06-17 07:25:09,508 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:09,512 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:25:09,512 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:25:09,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2021-06-17 07:25:09,514 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:09,518 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:25:09,518 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:25:09,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-06-17 07:25:09,520 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:09,523 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:25:09,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 22 [2021-06-17 07:25:09,526 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:09,567 INFO L628 ElimStorePlain]: treesize reduction 54, result has 43.2 percent of original size [2021-06-17 07:25:09,574 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 07:25:09,575 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:153, output treesize:35 [2021-06-17 07:25:09,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:25:09,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835094798] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:25:09,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:25:09,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-17 07:25:09,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739790921] [2021-06-17 07:25:09,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 07:25:09,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:25:09,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 07:25:09,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-06-17 07:25:09,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:25:09,623 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:25:09,623 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-06-17 07:25:09,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:25:09,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:25:09,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:25:09,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:25:09,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:25:09,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:25:10,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:25:10,014 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:25:10,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:25:10,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1580789603, now seen corresponding path program 2 times [2021-06-17 07:25:10,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:25:10,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160491519] [2021-06-17 07:25:10,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:25:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:25:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:25:10,078 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:25:10,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160491519] [2021-06-17 07:25:10,078 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160491519] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:25:10,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820956145] [2021-06-17 07:25:10,078 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 [2021-06-17 07:25:10,112 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 07:25:10,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:25:10,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-17 07:25:10,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:25:10,244 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:25:10,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820956145] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:25:10,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:25:10,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-17 07:25:10,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406005030] [2021-06-17 07:25:10,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 07:25:10,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:25:10,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 07:25:10,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-17 07:25:10,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:25:10,247 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:25:10,247 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 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) [2021-06-17 07:25:10,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:25:10,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:25:10,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:25:10,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:25:10,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:25:10,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:25:10,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:25:10,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:25:10,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-17 07:25:10,619 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:25:10,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:25:10,620 INFO L82 PathProgramCache]: Analyzing trace with hash -339909977, now seen corresponding path program 1 times [2021-06-17 07:25:10,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:25:10,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487093803] [2021-06-17 07:25:10,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:25:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:25:10,681 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:25:10,682 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:25:10,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487093803] [2021-06-17 07:25:10,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487093803] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:25:10,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455513644] [2021-06-17 07:25:10,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-17 07:25:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:25:10,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-17 07:25:10,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:25:10,779 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:25:10,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455513644] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:25:10,779 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:25:10,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-17 07:25:10,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969186914] [2021-06-17 07:25:10,780 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-17 07:25:10,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:25:10,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-17 07:25:10,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-17 07:25:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:25:10,781 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:25:10,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2021-06-17 07:25:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:25:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:25:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:25:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:25:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:25:10,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:25:10,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:25:10,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:25:10,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:25:10,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:25:11,081 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:25:11,081 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:25:11,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:25:11,081 INFO L82 PathProgramCache]: Analyzing trace with hash -700638459, now seen corresponding path program 2 times [2021-06-17 07:25:11,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:25:11,082 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854554491] [2021-06-17 07:25:11,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:25:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:25:11,715 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2021-06-17 07:25:11,943 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-06-17 07:25:12,160 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2021-06-17 07:25:12,322 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 51 [2021-06-17 07:25:12,494 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 48 [2021-06-17 07:25:12,635 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:25:12,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:25:12,636 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854554491] [2021-06-17 07:25:12,636 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854554491] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:25:12,636 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302068601] [2021-06-17 07:25:12,636 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 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 [2021-06-17 07:25:12,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 07:25:12,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:25:12,681 WARN L261 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 44 conjunts are in the unsatisfiable core [2021-06-17 07:25:12,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:25:32,687 WARN L205 SmtUtils]: Spent 19.08 s on a formula simplification that was a NOOP. DAG size: 81 [2021-06-17 07:25:33,867 INFO L446 ElimStorePlain]: Different costs {7=[v_prenex_61, v_prenex_65, v_prenex_73, v_prenex_55], 10=[v_prenex_50, A, v_prenex_71, v_prenex_53, v_prenex_75, v_prenex_63, v_prenex_69, v_prenex_46, v_prenex_57, v_prenex_67, v_prenex_59, v_prenex_48]} [2021-06-17 07:25:33,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:33,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:33,977 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-17 07:25:33,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 45 treesize of output 43 [2021-06-17 07:25:33,985 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:34,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:34,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:34,071 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-17 07:25:34,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 44 [2021-06-17 07:25:34,075 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:36,384 WARN L205 SmtUtils]: Spent 2.31 s on a formula simplification that was a NOOP. DAG size: 428 [2021-06-17 07:25:36,385 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:25:36,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:36,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:36,501 INFO L354 Elim1Store]: treesize reduction 18, result has 60.0 percent of original size [2021-06-17 07:25:36,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 57 treesize of output 57 [2021-06-17 07:25:36,528 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:36,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:36,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:36,613 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-17 07:25:36,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 62 treesize of output 52 [2021-06-17 07:25:36,626 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:41,050 WARN L205 SmtUtils]: Spent 4.42 s on a formula simplification. DAG size of input: 424 DAG size of output: 422 [2021-06-17 07:25:41,051 INFO L628 ElimStorePlain]: treesize reduction 10, result has 99.7 percent of original size [2021-06-17 07:25:41,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:41,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:41,143 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:25:41,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 76 treesize of output 84 [2021-06-17 07:25:41,213 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:41,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:41,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:41,317 INFO L354 Elim1Store]: treesize reduction 4, result has 91.1 percent of original size [2021-06-17 07:25:41,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 71 treesize of output 77 [2021-06-17 07:25:41,351 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:46,005 WARN L205 SmtUtils]: Spent 4.65 s on a formula simplification. DAG size of input: 494 DAG size of output: 425 [2021-06-17 07:25:46,006 INFO L628 ElimStorePlain]: treesize reduction 288, result has 92.3 percent of original size [2021-06-17 07:25:46,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:46,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:46,114 INFO L354 Elim1Store]: treesize reduction 14, result has 68.9 percent of original size [2021-06-17 07:25:46,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 53 treesize of output 59 [2021-06-17 07:25:46,122 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:46,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:46,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:46,205 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-17 07:25:46,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 60 [2021-06-17 07:25:46,212 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:50,377 WARN L205 SmtUtils]: Spent 4.16 s on a formula simplification. DAG size of input: 417 DAG size of output: 412 [2021-06-17 07:25:50,380 INFO L628 ElimStorePlain]: treesize reduction 17, result has 99.5 percent of original size [2021-06-17 07:25:50,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:50,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:50,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:50,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:50,469 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-06-17 07:25:50,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 106 treesize of output 76 [2021-06-17 07:25:50,472 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:50,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:50,535 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-06-17 07:25:50,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 106 treesize of output 78 [2021-06-17 07:25:50,540 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:54,373 WARN L205 SmtUtils]: Spent 3.83 s on a formula simplification. DAG size of input: 395 DAG size of output: 394 [2021-06-17 07:25:54,377 INFO L628 ElimStorePlain]: treesize reduction 8, result has 99.8 percent of original size [2021-06-17 07:25:54,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:54,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:54,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:54,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:54,470 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-06-17 07:25:54,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 100 treesize of output 78 [2021-06-17 07:25:54,479 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:54,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:54,560 INFO L354 Elim1Store]: treesize reduction 50, result has 36.7 percent of original size [2021-06-17 07:25:54,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 100 treesize of output 88 [2021-06-17 07:25:54,570 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:58,290 WARN L205 SmtUtils]: Spent 3.72 s on a formula simplification. DAG size of input: 377 DAG size of output: 375 [2021-06-17 07:25:58,291 INFO L628 ElimStorePlain]: treesize reduction 16, result has 99.5 percent of original size [2021-06-17 07:25:58,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:58,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:58,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:58,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:58,367 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-06-17 07:25:58,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 72 [2021-06-17 07:25:58,377 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:58,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:25:58,463 INFO L354 Elim1Store]: treesize reduction 46, result has 41.8 percent of original size [2021-06-17 07:25:58,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 84 treesize of output 90 [2021-06-17 07:25:58,482 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:02,027 WARN L205 SmtUtils]: Spent 3.55 s on a formula simplification. DAG size of input: 362 DAG size of output: 360 [2021-06-17 07:26:02,029 INFO L628 ElimStorePlain]: treesize reduction 16, result has 99.5 percent of original size [2021-06-17 07:26:02,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:02,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:02,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:02,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:02,120 INFO L354 Elim1Store]: treesize reduction 26, result has 52.7 percent of original size [2021-06-17 07:26:02,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 85 [2021-06-17 07:26:02,128 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:02,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:02,188 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-06-17 07:26:02,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 86 treesize of output 75 [2021-06-17 07:26:02,193 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:05,599 WARN L205 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 343 DAG size of output: 341 [2021-06-17 07:26:05,600 INFO L628 ElimStorePlain]: treesize reduction 16, result has 99.4 percent of original size [2021-06-17 07:26:05,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:05,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:05,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:05,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:05,709 INFO L354 Elim1Store]: treesize reduction 26, result has 52.7 percent of original size [2021-06-17 07:26:05,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 103 treesize of output 90 [2021-06-17 07:26:05,720 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:05,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:05,781 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-06-17 07:26:05,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 103 treesize of output 80 [2021-06-17 07:26:05,786 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:09,239 WARN L205 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 334 DAG size of output: 326 [2021-06-17 07:26:09,241 INFO L628 ElimStorePlain]: treesize reduction 42, result has 98.4 percent of original size [2021-06-17 07:26:09,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:09,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:09,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:09,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:09,358 INFO L354 Elim1Store]: treesize reduction 14, result has 74.5 percent of original size [2021-06-17 07:26:09,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 123 treesize of output 105 [2021-06-17 07:26:09,404 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:09,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:09,474 INFO L354 Elim1Store]: treesize reduction 48, result has 39.2 percent of original size [2021-06-17 07:26:09,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 123 treesize of output 95 [2021-06-17 07:26:09,487 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:14,364 WARN L205 SmtUtils]: Spent 4.88 s on a formula simplification. DAG size of input: 342 DAG size of output: 314 [2021-06-17 07:26:14,365 INFO L628 ElimStorePlain]: treesize reduction 164, result has 93.7 percent of original size [2021-06-17 07:26:14,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:14,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:14,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:14,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:14,458 INFO L354 Elim1Store]: treesize reduction 24, result has 56.4 percent of original size [2021-06-17 07:26:14,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 86 [2021-06-17 07:26:14,467 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:14,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:14,534 INFO L354 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2021-06-17 07:26:14,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 78 treesize of output 82 [2021-06-17 07:26:14,541 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:17,567 WARN L205 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 297 DAG size of output: 295 [2021-06-17 07:26:17,568 INFO L628 ElimStorePlain]: treesize reduction 16, result has 99.3 percent of original size [2021-06-17 07:26:17,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:17,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:17,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:17,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:17,648 INFO L354 Elim1Store]: treesize reduction 26, result has 52.7 percent of original size [2021-06-17 07:26:17,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 83 [2021-06-17 07:26:17,659 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:17,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:17,716 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-06-17 07:26:17,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 77 treesize of output 73 [2021-06-17 07:26:17,721 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:20,705 WARN L205 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 279 DAG size of output: 277 [2021-06-17 07:26:20,706 INFO L628 ElimStorePlain]: treesize reduction 16, result has 99.3 percent of original size [2021-06-17 07:26:20,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:20,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:20,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:20,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:20,811 INFO L354 Elim1Store]: treesize reduction 10, result has 81.8 percent of original size [2021-06-17 07:26:20,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 97 [2021-06-17 07:26:20,835 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:20,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:20,887 INFO L354 Elim1Store]: treesize reduction 66, result has 16.5 percent of original size [2021-06-17 07:26:20,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 66 treesize of output 65 [2021-06-17 07:26:20,890 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:23,598 WARN L205 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 261 DAG size of output: 258 [2021-06-17 07:26:23,599 INFO L628 ElimStorePlain]: treesize reduction 21, result has 99.0 percent of original size [2021-06-17 07:26:23,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:23,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:23,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:23,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:23,696 INFO L354 Elim1Store]: treesize reduction 24, result has 56.4 percent of original size [2021-06-17 07:26:23,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 90 [2021-06-17 07:26:23,705 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:23,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:23,758 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-06-17 07:26:23,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 98 treesize of output 74 [2021-06-17 07:26:23,761 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:26,313 WARN L205 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 239 DAG size of output: 238 [2021-06-17 07:26:26,314 INFO L628 ElimStorePlain]: treesize reduction 8, result has 99.6 percent of original size [2021-06-17 07:26:26,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:26,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:26,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:26,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:26,383 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-06-17 07:26:26,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 76 [2021-06-17 07:26:26,388 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:26,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:26,429 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-06-17 07:26:26,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 73 treesize of output 70 [2021-06-17 07:26:26,432 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:28,864 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 223 DAG size of output: 222 [2021-06-17 07:26:28,865 INFO L628 ElimStorePlain]: treesize reduction 8, result has 99.6 percent of original size [2021-06-17 07:26:28,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:28,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:28,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:28,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:28,928 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-06-17 07:26:28,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 138 treesize of output 86 [2021-06-17 07:26:28,934 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:28,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:28,982 INFO L354 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2021-06-17 07:26:28,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 138 treesize of output 82 [2021-06-17 07:26:28,985 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:31,237 WARN L205 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 202 DAG size of output: 201 [2021-06-17 07:26:31,238 INFO L628 ElimStorePlain]: treesize reduction 8, result has 99.5 percent of original size [2021-06-17 07:26:31,388 INFO L550 ElimStorePlain]: Start of recursive call 1: 17 dim-0 vars, 16 dim-1 vars, End of recursive call: and 32 xjuncts. [2021-06-17 07:26:31,388 INFO L247 ElimStorePlain]: Needed 33 recursive calls to eliminate 33 variables, input treesize:3613, output treesize:1742 [2021-06-17 07:26:31,834 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2021-06-17 07:26:31,946 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:26:31,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302068601] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:26:31,946 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:26:31,946 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 25 [2021-06-17 07:26:31,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967723363] [2021-06-17 07:26:31,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-17 07:26:31,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:26:31,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-17 07:26:31,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2021-06-17 07:26:31,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:26:31,947 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:26:31,948 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.24) internal successors, (56), 25 states have internal predecessors, (56), 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) [2021-06-17 07:26:31,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:26:31,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:26:31,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:26:31,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:26:31,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:26:31,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:26:32,246 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 60 [2021-06-17 07:26:32,595 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 73 [2021-06-17 07:26:33,006 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 90 [2021-06-17 07:26:33,235 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-06-17 07:26:33,881 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 94 [2021-06-17 07:26:34,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:26:34,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:26:34,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:26:34,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:26:34,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:26:34,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 07:26:34,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-17 07:26:34,231 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:26:34,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:26:34,232 INFO L82 PathProgramCache]: Analyzing trace with hash 531641315, now seen corresponding path program 3 times [2021-06-17 07:26:34,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:26:34,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866668765] [2021-06-17 07:26:34,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:26:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:26:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:26:34,315 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:26:34,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866668765] [2021-06-17 07:26:34,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866668765] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:26:34,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848084607] [2021-06-17 07:26:34,316 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 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 [2021-06-17 07:26:34,361 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-17 07:26:34,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:26:34,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-17 07:26:34,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:26:34,525 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:26:34,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848084607] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:26:34,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:26:34,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-06-17 07:26:34,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410498088] [2021-06-17 07:26:34,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-17 07:26:34,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:26:34,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-17 07:26:34,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-06-17 07:26:34,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:26:34,528 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:26:34,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 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) [2021-06-17 07:26:34,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:26:34,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:26:34,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:26:34,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:26:34,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:26:34,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 07:26:34,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:26:34,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:26:34,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:26:34,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:26:34,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:26:34,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:26:34,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 07:26:34,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:26:35,060 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:26:35,061 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:26:35,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:26:35,061 INFO L82 PathProgramCache]: Analyzing trace with hash -553752793, now seen corresponding path program 4 times [2021-06-17 07:26:35,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:26:35,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563297] [2021-06-17 07:26:35,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:26:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:26:35,137 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:26:35,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:26:35,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563297] [2021-06-17 07:26:35,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563297] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:26:35,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9727896] [2021-06-17 07:26:35,138 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 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 [2021-06-17 07:26:35,171 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 07:26:35,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:26:35,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-17 07:26:35,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:26:35,276 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:26:35,277 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9727896] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:26:35,277 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:26:35,277 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-17 07:26:35,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385164496] [2021-06-17 07:26:35,277 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-17 07:26:35,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:26:35,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-17 07:26:35,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-17 07:26:35,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:26:35,278 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:26:35,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 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) [2021-06-17 07:26:35,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:26:35,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:26:35,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:26:35,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:26:35,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:26:35,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 07:26:35,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:26:35,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:26:35,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:26:35,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:26:35,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:26:35,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:26:35,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:26:35,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 07:26:35,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:26:35,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:26:35,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:26:35,645 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:26:35,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:26:35,645 INFO L82 PathProgramCache]: Analyzing trace with hash 2070339973, now seen corresponding path program 5 times [2021-06-17 07:26:35,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:26:35,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132411224] [2021-06-17 07:26:35,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:26:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:26:36,384 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 40 [2021-06-17 07:26:36,497 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 160 [2021-06-17 07:26:36,945 WARN L205 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 76 [2021-06-17 07:26:37,191 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 225 [2021-06-17 07:26:37,951 WARN L205 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 112 [2021-06-17 07:26:38,286 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 243 [2021-06-17 07:26:39,237 WARN L205 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 134 [2021-06-17 07:26:39,506 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 237 [2021-06-17 07:26:40,474 WARN L205 SmtUtils]: Spent 919.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 128 [2021-06-17 07:26:40,844 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 207 [2021-06-17 07:26:41,391 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 87 [2021-06-17 07:26:41,663 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 60 [2021-06-17 07:26:41,853 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 38 [2021-06-17 07:26:42,012 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2021-06-17 07:26:42,221 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:26:42,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:26:42,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132411224] [2021-06-17 07:26:42,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132411224] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:26:42,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056550804] [2021-06-17 07:26:42,222 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 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 [2021-06-17 07:26:42,273 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-17 07:26:42,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:26:42,274 WARN L261 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 54 conjunts are in the unsatisfiable core [2021-06-17 07:26:42,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:26:44,543 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 134 [2021-06-17 07:26:46,324 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 342 [2021-06-17 07:26:48,783 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 343 [2021-06-17 07:26:50,790 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 344 [2021-06-17 07:26:52,835 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 346 [2021-06-17 07:26:54,623 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 345 [2021-06-17 07:26:55,974 WARN L205 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 339 [2021-06-17 07:26:57,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:57,455 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:26:57,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:57,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:57,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:57,462 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:26:57,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 43 [2021-06-17 07:26:57,483 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:57,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:57,527 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:26:57,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:57,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:57,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:26:57,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 40 [2021-06-17 07:26:57,535 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:05,368 WARN L205 SmtUtils]: Spent 7.83 s on a formula simplification. DAG size of input: 835 DAG size of output: 742 [2021-06-17 07:27:05,370 INFO L628 ElimStorePlain]: treesize reduction 1890, result has 57.6 percent of original size [2021-06-17 07:27:05,404 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:05,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:05,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:05,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:05,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:05,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-06-17 07:27:05,414 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:07,923 WARN L205 SmtUtils]: Spent 2.51 s on a formula simplification that was a NOOP. DAG size: 729 [2021-06-17 07:27:07,924 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:07,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:07,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:07,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:07,961 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:07,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:07,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2021-06-17 07:27:07,965 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:10,432 WARN L205 SmtUtils]: Spent 2.47 s on a formula simplification that was a NOOP. DAG size: 715 [2021-06-17 07:27:10,433 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:10,469 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:10,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:10,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:10,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:10,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:10,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 31 [2021-06-17 07:27:10,478 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:12,886 WARN L205 SmtUtils]: Spent 2.41 s on a formula simplification that was a NOOP. DAG size: 698 [2021-06-17 07:27:12,886 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:12,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:12,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:12,922 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:12,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:12,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:12,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 29 [2021-06-17 07:27:12,928 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:15,355 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification that was a NOOP. DAG size: 682 [2021-06-17 07:27:15,356 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:15,388 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:15,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:15,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:15,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:15,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:15,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2021-06-17 07:27:15,397 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:17,656 WARN L205 SmtUtils]: Spent 2.26 s on a formula simplification that was a NOOP. DAG size: 668 [2021-06-17 07:27:17,657 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:17,687 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:17,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:17,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:17,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:17,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:17,693 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:17,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 38 [2021-06-17 07:27:17,714 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:17,744 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:17,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:17,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:17,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:17,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:17,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 40 [2021-06-17 07:27:17,754 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:19,957 WARN L205 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 649 [2021-06-17 07:27:19,958 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:19,994 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:19,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:19,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:19,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:19,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:20,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 29 [2021-06-17 07:27:20,002 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:22,028 WARN L205 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 632 [2021-06-17 07:27:22,029 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:22,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:22,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:22,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:22,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:22,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 21 [2021-06-17 07:27:22,068 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:24,044 WARN L205 SmtUtils]: Spent 1.97 s on a formula simplification that was a NOOP. DAG size: 619 [2021-06-17 07:27:24,044 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:24,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:24,078 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:24,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:24,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:24,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:24,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 34 [2021-06-17 07:27:24,085 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:26,078 WARN L205 SmtUtils]: Spent 1.99 s on a formula simplification that was a NOOP. DAG size: 602 [2021-06-17 07:27:26,079 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:26,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:26,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:26,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:26,111 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:26,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:26,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2021-06-17 07:27:26,115 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:28,073 WARN L205 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 586 [2021-06-17 07:27:28,074 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:28,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:28,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:28,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:28,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:28,105 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:28,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 21 [2021-06-17 07:27:28,108 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:29,977 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification that was a NOOP. DAG size: 572 [2021-06-17 07:27:29,978 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:30,006 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:30,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:30,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:30,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:30,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:30,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2021-06-17 07:27:30,016 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:31,866 WARN L205 SmtUtils]: Spent 1.85 s on a formula simplification that was a NOOP. DAG size: 556 [2021-06-17 07:27:31,867 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:31,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:31,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:31,898 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:31,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:31,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:31,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2021-06-17 07:27:31,903 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:33,716 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 540 [2021-06-17 07:27:33,717 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:33,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:33,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:33,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:33,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:33,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:33,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:33,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:33,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2021-06-17 07:27:33,753 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:35,525 WARN L205 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 524 [2021-06-17 07:27:35,526 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:35,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:35,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:35,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:35,557 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:35,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:35,564 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:35,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 44 [2021-06-17 07:27:35,578 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:35,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:35,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:35,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:35,608 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:35,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:35,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 46 [2021-06-17 07:27:35,612 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:37,249 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 502 [2021-06-17 07:27:37,250 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:37,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:37,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:37,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:37,281 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:37,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:37,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 40 [2021-06-17 07:27:37,285 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:38,850 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 484 [2021-06-17 07:27:38,850 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:38,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:38,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:38,877 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:38,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:38,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:38,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2021-06-17 07:27:38,882 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:40,432 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 469 [2021-06-17 07:27:40,433 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:40,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:40,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:40,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:40,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:40,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2021-06-17 07:27:40,471 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:41,983 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 455 [2021-06-17 07:27:41,984 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:42,006 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:42,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:42,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:42,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:42,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:42,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 24 [2021-06-17 07:27:42,013 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:43,432 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 440 [2021-06-17 07:27:43,433 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:43,455 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:43,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:43,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:43,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:43,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:43,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2021-06-17 07:27:43,462 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:44,852 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 425 [2021-06-17 07:27:44,853 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:44,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:44,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:44,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:44,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:44,878 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:44,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 34 [2021-06-17 07:27:44,880 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:46,215 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 408 [2021-06-17 07:27:46,216 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:46,238 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:46,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:46,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:46,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:46,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:46,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 21 [2021-06-17 07:27:46,245 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:47,573 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 394 [2021-06-17 07:27:47,574 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:47,594 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:47,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:47,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:47,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:47,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:47,600 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:47,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 31 [2021-06-17 07:27:47,617 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:47,637 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:47,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:47,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:47,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:47,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:47,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 32 [2021-06-17 07:27:47,644 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:48,919 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 374 [2021-06-17 07:27:48,920 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:48,945 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:48,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:48,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:48,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:48,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:48,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2021-06-17 07:27:48,954 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:50,112 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 357 [2021-06-17 07:27:50,112 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:50,132 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:50,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:50,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:50,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:50,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:50,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:50,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 32 [2021-06-17 07:27:50,153 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:50,174 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:50,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:50,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:50,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:50,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:50,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 31 [2021-06-17 07:27:50,181 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:51,223 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 337 [2021-06-17 07:27:51,223 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:51,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:51,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:51,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:51,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:51,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2021-06-17 07:27:51,248 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:52,210 WARN L205 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2021-06-17 07:27:52,211 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:52,230 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:52,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:52,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:52,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:52,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:52,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2021-06-17 07:27:52,236 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:53,174 WARN L205 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 306 [2021-06-17 07:27:53,175 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:53,192 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:53,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:53,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:53,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:53,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:53,198 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:53,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 35 [2021-06-17 07:27:53,213 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:53,232 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:53,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:53,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:53,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:53,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:53,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 34 [2021-06-17 07:27:53,239 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:54,071 WARN L205 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2021-06-17 07:27:54,072 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:54,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:54,089 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:54,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:54,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:54,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:54,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2021-06-17 07:27:54,095 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:54,912 WARN L205 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-06-17 07:27:54,913 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:54,929 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:54,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:54,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:54,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:54,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:54,933 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:54,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2021-06-17 07:27:54,957 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:54,974 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:54,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:54,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:54,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:54,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:54,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2021-06-17 07:27:54,981 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:55,702 WARN L205 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-06-17 07:27:55,702 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:55,718 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:55,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:55,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:55,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:55,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:55,722 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:55,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 35 [2021-06-17 07:27:55,737 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:55,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:27:55,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:55,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:55,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:55,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:27:55,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 33 [2021-06-17 07:27:55,762 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:56,419 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2021-06-17 07:27:56,420 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:27:56,451 INFO L550 ElimStorePlain]: Start of recursive call 1: 64 dim-0 vars, 32 dim-1 vars, End of recursive call: and 12 xjuncts. [2021-06-17 07:27:56,451 INFO L247 ElimStorePlain]: Needed 41 recursive calls to eliminate 96 variables, input treesize:4571, output treesize:175 [2021-06-17 07:27:56,630 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:27:56,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056550804] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:27:56,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:27:56,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-06-17 07:27:56,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707707849] [2021-06-17 07:27:56,631 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-17 07:27:56,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:27:56,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-17 07:27:56,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2021-06-17 07:27:56,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:27:56,632 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:27:56,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.4) internal successors, (72), 30 states have internal predecessors, (72), 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) [2021-06-17 07:27:56,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:27:56,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:27:56,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:27:56,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:27:56,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:27:56,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 07:27:56,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:27:56,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:27:56,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:27:57,048 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 64 [2021-06-17 07:27:57,562 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 69 [2021-06-17 07:27:57,982 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 77 [2021-06-17 07:27:58,289 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 70 [2021-06-17 07:27:58,675 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 94 [2021-06-17 07:28:04,880 WARN L205 SmtUtils]: Spent 6.00 s on a formula simplification. DAG size of input: 419 DAG size of output: 419 [2021-06-17 07:28:05,175 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-06-17 07:28:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 07:28:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:28:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:28:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:28:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:28:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 07:28:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:28:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:28:05,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 07:28:05,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable188 [2021-06-17 07:28:05,776 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:28:05,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:28:05,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1007081921, now seen corresponding path program 6 times [2021-06-17 07:28:05,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:28:05,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35048374] [2021-06-17 07:28:05,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:28:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:28:08,011 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 143 [2021-06-17 07:28:08,339 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 52 [2021-06-17 07:28:10,698 WARN L205 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 188 DAG size of output: 286 [2021-06-17 07:28:11,433 WARN L205 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 66 [2021-06-17 07:30:09,538 WARN L205 SmtUtils]: Spent 1.97 m on a formula simplification. DAG size of input: 384 DAG size of output: 713 [2021-06-17 07:30:09,707 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 713 [2021-06-17 07:30:12,508 WARN L205 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 709 DAG size of output: 166 [2021-06-17 07:33:44,465 WARN L205 SmtUtils]: Spent 3.53 m on a formula simplification. DAG size of input: 435 DAG size of output: 486 [2021-06-17 07:33:49,166 WARN L205 SmtUtils]: Spent 4.09 s on a formula simplification. DAG size of input: 484 DAG size of output: 282 [2021-06-17 07:37:23,246 WARN L205 SmtUtils]: Spent 3.57 m on a formula simplification. DAG size of input: 438 DAG size of output: 489 [2021-06-17 07:37:27,140 WARN L205 SmtUtils]: Spent 3.69 s on a formula simplification. DAG size of input: 487 DAG size of output: 263 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown