/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 18:11:59,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 18:11:59,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 18:11:59,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 18:11:59,256 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-Lockstep.epf [2021-07-14 18:11:59,283 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 18:11:59,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 18:11:59,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 18:11:59,284 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 18:11:59,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 18:11:59,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 18:11:59,285 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 18:11:59,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 18:11:59,285 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 18:11:59,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 18:11:59,285 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 18:11:59,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 18:11:59,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 18:11:59,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 18:11:59,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 18:11:59,286 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 18:11:59,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 18:11:59,286 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 18:11:59,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 18:11:59,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 18:11:59,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 18:11:59,287 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 18:11:59,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 18:11:59,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 18:11:59,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 18:11:59,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 18:11:59,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 18:11:59,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 18:11:59,287 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 18:11:59,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 18:11:59,287 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 18:11:59,288 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 18:11:59,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 18:11:59,288 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 18:11:59,288 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 18:11:59,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 18:11:59,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 18:11:59,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 18:11:59,527 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 18:11:59,528 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 18:11:59,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-2.wvr.bpl [2021-07-14 18:11:59,529 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-2.wvr.bpl' [2021-07-14 18:11:59,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 18:11:59,559 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 18:11:59,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 18:11:59,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 18:11:59,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 18:11:59,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:11:59" (1/1) ... [2021-07-14 18:11:59,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:11:59" (1/1) ... [2021-07-14 18:11:59,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 18:11:59,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 18:11:59,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 18:11:59,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 18:11:59,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:11:59" (1/1) ... [2021-07-14 18:11:59,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:11:59" (1/1) ... [2021-07-14 18:11:59,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:11:59" (1/1) ... [2021-07-14 18:11:59,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:11:59" (1/1) ... [2021-07-14 18:11:59,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:11:59" (1/1) ... [2021-07-14 18:11:59,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:11:59" (1/1) ... [2021-07-14 18:11:59,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:11:59" (1/1) ... [2021-07-14 18:11:59,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 18:11:59,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 18:11:59,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 18:11:59,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 18:11:59,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:11:59" (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 [2021-07-14 18:11:59,688 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 18:11:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 18:11:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 18:11:59,689 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 18:11:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 18:11:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 18:11:59,689 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 18:11:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 18:11:59,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 18:11:59,691 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 18:11:59,915 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 18:11:59,915 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-07-14 18:11:59,916 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-07-14 18:11:59,916 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-07-14 18:11:59,917 INFO L202 PluginConnector]: Adding new model unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 06:11:59 BoogieIcfgContainer [2021-07-14 18:11:59,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 18:11:59,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 18:11:59,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 18:11:59,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 18:11:59,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:11:59" (1/2) ... [2021-07-14 18:11:59,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3106d7cd and model type unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 06:11:59, skipping insertion in model container [2021-07-14 18:11:59,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 06:11:59" (2/2) ... [2021-07-14 18:11:59,922 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-2.wvr.bpl [2021-07-14 18:11:59,926 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 18:11:59,926 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 18:11:59,926 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 18:11:59,927 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 18:11:59,975 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-14 18:12:00,007 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 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 [2021-07-14 18:12:00,043 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 18:12:00,043 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 18:12:00,043 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 18:12:00,043 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 18:12:00,043 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 18:12:00,043 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 18:12:00,043 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 18:12:00,044 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 18:12:00,075 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:00,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:00,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1689499342, now seen corresponding path program 1 times [2021-07-14 18:12:00,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:00,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902877117] [2021-07-14 18:12:00,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:00,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:00,176 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:00,176 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902877117] [2021-07-14 18:12:00,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902877117] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 18:12:00,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 18:12:00,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 18:12:00,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29160318] [2021-07-14 18:12:00,181 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 18:12:00,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:12:00,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 18:12:00,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 18:12:00,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:00,196 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:12:00,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-07-14 18:12:00,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:00,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:00,216 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 18:12:00,216 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:00,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:00,219 INFO L82 PathProgramCache]: Analyzing trace with hash 663947026, now seen corresponding path program 1 times [2021-07-14 18:12:00,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:00,219 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725038827] [2021-07-14 18:12:00,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:00,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:00,286 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:00,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725038827] [2021-07-14 18:12:00,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725038827] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:00,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191328354] [2021-07-14 18:12:00,286 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 [2021-07-14 18:12:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:00,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-14 18:12:00,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:12:00,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:00,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191328354] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:00,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:12:00,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-07-14 18:12:00,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146378733] [2021-07-14 18:12:00,401 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 18:12:00,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:12:00,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 18:12:00,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-14 18:12:00,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:00,411 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:12:00,411 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-07-14 18:12:00,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:00,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:00,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:00,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:00,661 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:00,661 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:00,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:00,662 INFO L82 PathProgramCache]: Analyzing trace with hash -891750223, now seen corresponding path program 1 times [2021-07-14 18:12:00,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:00,662 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954187034] [2021-07-14 18:12:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:00,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 18:12:00,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:00,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954187034] [2021-07-14 18:12:00,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954187034] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:00,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419364500] [2021-07-14 18:12:00,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-14 18:12:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:00,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 18:12:00,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:12:00,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 18:12:00,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419364500] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:00,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:12:00,743 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-07-14 18:12:00,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112784082] [2021-07-14 18:12:00,744 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 18:12:00,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:12:00,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 18:12:00,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 18:12:00,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:00,745 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:12:00,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-07-14 18:12:00,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:00,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:00,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:00,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:00,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:00,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:00,976 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:00,977 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:00,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:00,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1617411729, now seen corresponding path program 2 times [2021-07-14 18:12:00,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:00,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983040900] [2021-07-14 18:12:00,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:01,002 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:01,003 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:01,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983040900] [2021-07-14 18:12:01,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983040900] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:01,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902944282] [2021-07-14 18:12:01,003 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-07-14 18:12:01,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 18:12:01,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 18:12:01,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 18:12:01,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:01,143 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 18:12:01,144 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 18 [2021-07-14 18:12:01,147 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 18:12:01,148 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 18:12:01,149 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 18:12:01,149 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:3 [2021-07-14 18:12:01,154 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:01,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902944282] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:01,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:12:01,154 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2021-07-14 18:12:01,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882236586] [2021-07-14 18:12:01,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 18:12:01,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:12:01,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 18:12:01,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-14 18:12:01,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:01,155 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:12:01,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 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) [2021-07-14 18:12:01,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:01,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:01,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:01,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:01,392 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:01,392 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:01,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:01,393 INFO L82 PathProgramCache]: Analyzing trace with hash 2092020913, now seen corresponding path program 3 times [2021-07-14 18:12:01,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:01,393 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867977195] [2021-07-14 18:12:01,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:01,427 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:01,428 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:01,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867977195] [2021-07-14 18:12:01,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867977195] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:01,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387455030] [2021-07-14 18:12:01,428 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 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 [2021-07-14 18:12:01,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 18:12:01,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 18:12:01,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-14 18:12:01,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:12:01,492 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:01,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387455030] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:01,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:12:01,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-07-14 18:12:01,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078999951] [2021-07-14 18:12:01,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 18:12:01,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:12:01,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 18:12:01,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-07-14 18:12:01,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:01,493 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:12:01,493 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 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) [2021-07-14 18:12:01,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:01,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:01,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:01,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:01,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:01,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:01,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:01,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:01,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:01,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:01,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:01,760 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:01,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:01,761 INFO L82 PathProgramCache]: Analyzing trace with hash 428867314, now seen corresponding path program 4 times [2021-07-14 18:12:01,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:01,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577408973] [2021-07-14 18:12:01,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:01,794 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 18:12:01,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:01,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577408973] [2021-07-14 18:12:01,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577408973] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:01,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936745677] [2021-07-14 18:12:01,795 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 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 [2021-07-14 18:12:01,818 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 18:12:01,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 18:12:01,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 18:12:01,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:12:01,856 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 18:12:01,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936745677] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:01,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:12:01,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-07-14 18:12:01,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381691135] [2021-07-14 18:12:01,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 18:12:01,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:12:01,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 18:12:01,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-07-14 18:12:01,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:01,857 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:12:01,857 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 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) [2021-07-14 18:12:01,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:01,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:01,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:01,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:01,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:01,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:01,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:01,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:01,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:01,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:01,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:01,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:02,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:02,128 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:02,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:02,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1437619950, now seen corresponding path program 5 times [2021-07-14 18:12:02,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:02,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143018396] [2021-07-14 18:12:02,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:02,189 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:02,189 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:02,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143018396] [2021-07-14 18:12:02,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143018396] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:02,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279880816] [2021-07-14 18:12:02,207 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 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 [2021-07-14 18:12:02,271 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-14 18:12:02,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 18:12:02,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 18:12:02,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:12:02,342 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 18:12:02,342 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279880816] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:02,342 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:12:02,342 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2021-07-14 18:12:02,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182634570] [2021-07-14 18:12:02,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-14 18:12:02,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:12:02,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-14 18:12:02,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-07-14 18:12:02,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:02,344 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:12:02,344 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 14 states have internal predecessors, (28), 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) [2021-07-14 18:12:02,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:02,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:02,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:02,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:02,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:02,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:02,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:02,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:02,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:02,673 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:02,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:02,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1615817039, now seen corresponding path program 6 times [2021-07-14 18:12:02,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:02,674 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819720607] [2021-07-14 18:12:02,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:02,730 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:02,730 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:02,730 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819720607] [2021-07-14 18:12:02,730 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819720607] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:02,730 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402991682] [2021-07-14 18:12:02,730 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-07-14 18:12:02,758 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-07-14 18:12:02,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 18:12:02,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 25 conjunts are in the unsatisfiable core [2021-07-14 18:12:02,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:12:02,937 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 18:12:02,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 31 treesize of output 142 [2021-07-14 18:12:03,178 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 18:12:03,179 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 18:12:03,180 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 18:12:03,180 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:3 [2021-07-14 18:12:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:03,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402991682] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:03,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:12:03,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-07-14 18:12:03,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654747827] [2021-07-14 18:12:03,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 18:12:03,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:12:03,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 18:12:03,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-07-14 18:12:03,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:03,185 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:12:03,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 17 states have internal predecessors, (32), 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) [2021-07-14 18:12:03,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:03,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:03,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:03,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:03,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:03,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:03,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:03,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:12:03,450 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-07-14 18:12:03,451 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:03,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:03,451 INFO L82 PathProgramCache]: Analyzing trace with hash 2062644433, now seen corresponding path program 7 times [2021-07-14 18:12:03,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:03,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445415256] [2021-07-14 18:12:03,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:03,559 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:03,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:03,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445415256] [2021-07-14 18:12:03,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445415256] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:03,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129899492] [2021-07-14 18:12:03,559 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:03,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 12 conjunts are in the unsatisfiable core [2021-07-14 18:12:03,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:12:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:03,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129899492] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:03,635 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:12:03,635 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-07-14 18:12:03,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992305583] [2021-07-14 18:12:03,635 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 18:12:03,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:12:03,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 18:12:03,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-07-14 18:12:03,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:03,636 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:12:03,636 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 13 states have internal predecessors, (22), 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) [2021-07-14 18:12:03,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:03,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:03,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:03,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:03,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:03,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:03,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:03,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:12:03,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:03,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:12:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:12:03,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:03,972 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:03,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:03,972 INFO L82 PathProgramCache]: Analyzing trace with hash -481803566, now seen corresponding path program 8 times [2021-07-14 18:12:03,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:03,972 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931166441] [2021-07-14 18:12:03,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:04,023 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-07-14 18:12:04,024 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:04,024 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931166441] [2021-07-14 18:12:04,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931166441] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:04,024 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297376626] [2021-07-14 18:12:04,024 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:04,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 18:12:04,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 18:12:04,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 18:12:04,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:12:04,117 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-14 18:12:04,117 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297376626] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:04,117 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:12:04,117 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 13 [2021-07-14 18:12:04,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735992479] [2021-07-14 18:12:04,117 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 18:12:04,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:12:04,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 18:12:04,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-07-14 18:12:04,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:04,118 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:12:04,118 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 states have internal predecessors, (23), 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) [2021-07-14 18:12:04,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:04,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:04,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:04,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:04,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:04,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:04,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:04,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:12:04,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:12:04,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:12:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:12:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 18:12:04,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-07-14 18:12:04,429 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:04,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:04,429 INFO L82 PathProgramCache]: Analyzing trace with hash -238413582, now seen corresponding path program 9 times [2021-07-14 18:12:04,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:04,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434657611] [2021-07-14 18:12:04,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:04,489 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:04,489 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:04,490 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434657611] [2021-07-14 18:12:04,490 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434657611] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:04,490 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270291177] [2021-07-14 18:12:04,490 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:04,525 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-14 18:12:04,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 18:12:04,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 31 conjunts are in the unsatisfiable core [2021-07-14 18:12:04,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:12:04,799 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 18:12:04,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 39 treesize of output 252 [2021-07-14 18:12:05,842 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 18:12:05,843 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 18:12:05,844 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 18:12:05,844 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-07-14 18:12:05,848 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:05,848 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270291177] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:05,848 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:12:05,848 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14] total 22 [2021-07-14 18:12:05,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298294240] [2021-07-14 18:12:05,848 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-14 18:12:05,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:12:05,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-14 18:12:05,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-07-14 18:12:05,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:05,849 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:12:05,849 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 22 states have internal predecessors, (38), 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) [2021-07-14 18:12:05,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:05,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:05,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:05,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:05,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:05,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:05,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:05,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:12:05,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:12:05,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 18:12:05,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:12:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:12:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 18:12:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:06,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-07-14 18:12:06,140 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:06,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:06,141 INFO L82 PathProgramCache]: Analyzing trace with hash 686281970, now seen corresponding path program 10 times [2021-07-14 18:12:06,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:06,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637891624] [2021-07-14 18:12:06,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:06,256 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:06,256 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:06,256 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637891624] [2021-07-14 18:12:06,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637891624] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:06,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430992964] [2021-07-14 18:12:06,257 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:06,295 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 18:12:06,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 18:12:06,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-14 18:12:06,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:12:06,351 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 45 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:06,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430992964] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:06,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:12:06,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-07-14 18:12:06,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498031235] [2021-07-14 18:12:06,351 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 18:12:06,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:12:06,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 18:12:06,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-07-14 18:12:06,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:06,352 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:12:06,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 17 states have internal predecessors, (26), 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) [2021-07-14 18:12:06,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:06,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:06,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:06,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:06,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:06,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:06,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:06,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:12:06,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:12:06,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 18:12:06,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:06,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:06,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:06,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:06,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:12:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:12:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 18:12:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 18:12:06,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable200 [2021-07-14 18:12:06,717 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:06,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:06,717 INFO L82 PathProgramCache]: Analyzing trace with hash -199366959, now seen corresponding path program 11 times [2021-07-14 18:12:06,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:06,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845348967] [2021-07-14 18:12:06,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:06,807 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:06,807 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:06,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845348967] [2021-07-14 18:12:06,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845348967] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:06,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638261270] [2021-07-14 18:12:06,807 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:06,837 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 18:12:06,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 18:12:06,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-14 18:12:06,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:12:07,302 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-07-14 18:12:07,303 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 18:12:07,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 19 new quantified variables, introduced 45 case distinctions, treesize of input 47 treesize of output 394 [2021-07-14 18:12:08,156 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 236 [2021-07-14 18:12:08,265 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 236 [2021-07-14 18:12:08,423 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 324 DAG size of output: 252 [2021-07-14 18:12:08,650 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 258 [2021-07-14 18:12:08,760 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 206 [2021-07-14 18:12:10,024 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 213 [2021-07-14 18:12:10,224 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 287 [2021-07-14 18:12:11,037 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 480 DAG size of output: 370 [2021-07-14 18:12:11,454 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 395 [2021-07-14 18:12:11,987 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 600 DAG size of output: 442 [2021-07-14 18:12:12,127 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 234 [2021-07-14 18:12:13,942 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 270 [2021-07-14 18:12:14,228 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 533 DAG size of output: 379 [2021-07-14 18:12:14,594 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 419 [2021-07-14 18:12:15,067 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 667 DAG size of output: 486 [2021-07-14 18:12:16,139 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 1125 DAG size of output: 757 [2021-07-14 18:12:17,376 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1132 DAG size of output: 747 [2021-07-14 18:12:18,620 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1132 DAG size of output: 747 [2021-07-14 18:12:20,004 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1143 DAG size of output: 758 [2021-07-14 18:12:21,566 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 756 DAG size of output: 858 [2021-07-14 18:12:22,065 WARN L205 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 433 DAG size of output: 459 [2021-07-14 18:12:22,251 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 212 [2021-07-14 18:12:22,780 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 183 [2021-07-14 18:12:22,913 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 205 [2021-07-14 18:12:23,461 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 239 [2021-07-14 18:12:23,615 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 271 [2021-07-14 18:12:23,867 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 358 [2021-07-14 18:12:24,702 WARN L205 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 686 [2021-07-14 18:12:25,287 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 454 DAG size of output: 491 [2021-07-14 18:12:25,741 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 302 [2021-07-14 18:12:26,065 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 231 [2021-07-14 18:12:26,263 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 459 DAG size of output: 334 [2021-07-14 18:12:26,603 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 378 [2021-07-14 18:12:27,012 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 236 [2021-07-14 18:12:27,165 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 300 [2021-07-14 18:12:27,471 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 704 DAG size of output: 431 [2021-07-14 18:12:27,842 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 711 DAG size of output: 437 [2021-07-14 18:12:28,478 WARN L205 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 1016 DAG size of output: 596 [2021-07-14 18:12:29,127 WARN L205 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 1016 DAG size of output: 596 [2021-07-14 18:12:29,860 WARN L205 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 1022 DAG size of output: 554 [2021-07-14 18:12:30,163 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 355 DAG size of output: 433 [2021-07-14 18:12:30,599 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 209 [2021-07-14 18:12:30,919 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 386 DAG size of output: 239 [2021-07-14 18:12:31,324 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 447 [2021-07-14 18:12:31,536 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 279 [2021-07-14 18:12:31,788 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 303 [2021-07-14 18:12:32,071 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 368 [2021-07-14 18:12:32,487 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 697 DAG size of output: 436 [2021-07-14 18:12:32,903 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 697 DAG size of output: 436 [2021-07-14 18:12:33,352 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 700 DAG size of output: 439 [2021-07-14 18:12:33,612 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 335 [2021-07-14 18:12:34,212 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 18:12:34,214 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 18:12:34,214 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 18:12:34,214 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:3 [2021-07-14 18:12:34,218 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:34,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638261270] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:34,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:12:34,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-07-14 18:12:34,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691547390] [2021-07-14 18:12:34,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-14 18:12:34,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:12:34,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-14 18:12:34,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-14 18:12:34,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:34,219 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:12:34,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 27 states have internal predecessors, (44), 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) [2021-07-14 18:12:34,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:34,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:34,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:34,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:34,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:34,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:34,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:34,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:12:34,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:12:34,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 18:12:34,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:34,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 18:12:34,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:34,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:12:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:12:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 18:12:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 18:12:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:12:34,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable201 [2021-07-14 18:12:34,540 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:34,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:34,541 INFO L82 PathProgramCache]: Analyzing trace with hash -514413871, now seen corresponding path program 12 times [2021-07-14 18:12:34,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:34,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421147899] [2021-07-14 18:12:34,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:34,736 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 55 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:34,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:34,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421147899] [2021-07-14 18:12:34,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421147899] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:34,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030195377] [2021-07-14 18:12:34,736 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:34,768 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-14 18:12:34,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 18:12:34,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-14 18:12:34,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:12:34,827 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 66 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:34,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030195377] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:34,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:12:34,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-07-14 18:12:34,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731548461] [2021-07-14 18:12:34,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-14 18:12:34,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:12:34,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-14 18:12:34,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-07-14 18:12:34,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:34,829 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:12:34,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.380952380952381) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 18:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 18:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 18:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:12:34,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:12:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:12:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:12:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:12:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:12:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:12:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:12:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:12:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 18:12:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:12:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 18:12:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:12:35,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 18:12:35,245 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1342,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:35,245 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:12:35,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:12:35,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1233767634, now seen corresponding path program 13 times [2021-07-14 18:12:35,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:12:35,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552342990] [2021-07-14 18:12:35,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:12:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:35,358 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:12:35,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:12:35,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552342990] [2021-07-14 18:12:35,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552342990] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:12:35,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55173327] [2021-07-14 18:12:35,359 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:12:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:12:35,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 43 conjunts are in the unsatisfiable core [2021-07-14 18:12:35,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:12:36,151 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-07-14 18:12:36,152 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 18:12:36,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 23 new quantified variables, introduced 66 case distinctions, treesize of input 55 treesize of output 568 [2021-07-14 18:12:37,014 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 276 [2021-07-14 18:12:37,155 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 280 [2021-07-14 18:12:37,914 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 269 [2021-07-14 18:12:38,044 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 273 [2021-07-14 18:12:38,358 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 457 DAG size of output: 411 [2021-07-14 18:12:38,743 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 483 DAG size of output: 438 [2021-07-14 18:12:39,490 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 250 [2021-07-14 18:12:39,612 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 252 [2021-07-14 18:12:40,323 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 240 [2021-07-14 18:12:40,434 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 242 [2021-07-14 18:12:40,758 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 420 DAG size of output: 374 [2021-07-14 18:12:41,093 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 447 DAG size of output: 402 [2021-07-14 18:12:41,945 WARN L205 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 770 DAG size of output: 685 [2021-07-14 18:12:42,882 WARN L205 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 812 DAG size of output: 726 [2021-07-14 18:12:43,981 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 833 DAG size of output: 734 [2021-07-14 18:12:45,240 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 841 DAG size of output: 738 [2021-07-14 18:12:46,491 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 841 DAG size of output: 738 [2021-07-14 18:12:47,990 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 861 DAG size of output: 758 [2021-07-14 18:12:49,861 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 760 DAG size of output: 812 [2021-07-14 18:12:50,721 WARN L205 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 464 DAG size of output: 563 [2021-07-14 18:12:51,316 WARN L205 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 458 DAG size of output: 646 [2021-07-14 18:12:52,108 WARN L205 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 455 DAG size of output: 545 [2021-07-14 18:12:52,753 WARN L205 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 536 [2021-07-14 18:12:53,089 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 313 [2021-07-14 18:12:53,198 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 254 [2021-07-14 18:12:53,941 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 303 [2021-07-14 18:12:54,754 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 314 [2021-07-14 18:12:55,162 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 500 [2021-07-14 18:12:55,678 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 754 DAG size of output: 569 [2021-07-14 18:12:55,888 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 252 [2021-07-14 18:12:56,590 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 212 [2021-07-14 18:12:56,858 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 273 [2021-07-14 18:12:57,090 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 288 [2021-07-14 18:12:57,859 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 195 [2021-07-14 18:12:58,173 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 259 [2021-07-14 18:12:58,700 WARN L205 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 597 DAG size of output: 416 [2021-07-14 18:12:59,539 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 247 [2021-07-14 18:12:59,736 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 262 [2021-07-14 18:12:59,877 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 250 [2021-07-14 18:13:00,510 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 191 [2021-07-14 18:13:00,675 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 252 [2021-07-14 18:13:00,885 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 253 [2021-07-14 18:13:01,130 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 268 [2021-07-14 18:13:01,662 WARN L205 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 397 [2021-07-14 18:13:02,701 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 975 DAG size of output: 585 [2021-07-14 18:13:04,447 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 1575 DAG size of output: 971 [2021-07-14 18:13:05,394 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 521 DAG size of output: 336 [2021-07-14 18:13:05,778 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 355 [2021-07-14 18:13:06,031 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 339 [2021-07-14 18:13:07,091 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 308 [2021-07-14 18:13:07,249 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 322 [2021-07-14 18:13:07,827 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 597 DAG size of output: 379 [2021-07-14 18:13:08,115 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 627 DAG size of output: 401 [2021-07-14 18:13:08,477 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 639 DAG size of output: 412 [2021-07-14 18:13:09,298 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 290 [2021-07-14 18:13:09,487 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 410 DAG size of output: 324 [2021-07-14 18:13:09,700 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 421 DAG size of output: 334 [2021-07-14 18:13:10,344 WARN L205 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 866 DAG size of output: 570 [2021-07-14 18:13:11,673 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 362 DAG size of output: 282 [2021-07-14 18:13:11,926 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 522 DAG size of output: 386 [2021-07-14 18:13:12,336 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 584 DAG size of output: 444 [2021-07-14 18:13:13,388 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 1125 DAG size of output: 748 [2021-07-14 18:13:14,840 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1273 DAG size of output: 863 [2021-07-14 18:13:15,119 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 273 [2021-07-14 18:13:16,034 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 281 [2021-07-14 18:13:16,203 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 466 DAG size of output: 313 [2021-07-14 18:13:16,856 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 281 [2021-07-14 18:13:17,186 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 609 DAG size of output: 428 [2021-07-14 18:13:18,288 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 324 [2021-07-14 18:13:18,527 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 374 [2021-07-14 18:13:19,111 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 756 DAG size of output: 529 [2021-07-14 18:13:21,281 WARN L205 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 1662 DAG size of output: 1121 [2021-07-14 18:13:21,579 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 336 [2021-07-14 18:13:21,785 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 278 [2021-07-14 18:13:22,506 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2021-07-14 18:13:22,668 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 220 [2021-07-14 18:13:23,399 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 191 [2021-07-14 18:13:23,530 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 215 [2021-07-14 18:13:23,703 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 236 [2021-07-14 18:13:24,068 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 345 [2021-07-14 18:13:24,216 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 242 [2021-07-14 18:13:24,809 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 198 [2021-07-14 18:13:25,446 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 207 [2021-07-14 18:13:25,693 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 303 [2021-07-14 18:13:26,003 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 392 DAG size of output: 323 [2021-07-14 18:13:26,591 WARN L205 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 666 DAG size of output: 465 [2021-07-14 18:13:26,721 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 307 [2021-07-14 18:13:27,512 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2021-07-14 18:13:28,209 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 342 DAG size of output: 285 [2021-07-14 18:13:29,179 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 255 [2021-07-14 18:13:29,368 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 279 [2021-07-14 18:13:29,841 WARN L205 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 527 DAG size of output: 424 [2021-07-14 18:13:30,485 WARN L205 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 642 DAG size of output: 511 [2021-07-14 18:13:31,911 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1161 DAG size of output: 818 [2021-07-14 18:13:35,798 WARN L205 SmtUtils]: Spent 3.88 s on a formula simplification. DAG size of input: 2529 DAG size of output: 1673 [2021-07-14 18:13:40,431 WARN L205 SmtUtils]: Spent 4.62 s on a formula simplification. DAG size of input: 2885 DAG size of output: 1923 [2021-07-14 18:13:47,539 WARN L205 SmtUtils]: Spent 7.10 s on a formula simplification. DAG size of input: 4260 DAG size of output: 2683 [2021-07-14 18:13:55,816 WARN L205 SmtUtils]: Spent 8.26 s on a formula simplification. DAG size of input: 4417 DAG size of output: 2844 [2021-07-14 18:14:05,226 WARN L205 SmtUtils]: Spent 9.39 s on a formula simplification. DAG size of input: 4663 DAG size of output: 2936 [2021-07-14 18:14:05,864 WARN L205 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 626 [2021-07-14 18:14:06,681 WARN L205 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 525 [2021-07-14 18:14:07,355 WARN L205 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 490 [2021-07-14 18:14:08,823 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 472 DAG size of output: 464 [2021-07-14 18:14:09,022 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 479 DAG size of output: 470 [2021-07-14 18:14:09,384 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 813 DAG size of output: 655 [2021-07-14 18:14:09,627 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 221 [2021-07-14 18:14:10,717 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 181 [2021-07-14 18:14:11,265 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 179 [2021-07-14 18:14:11,510 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 241 [2021-07-14 18:14:11,803 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 244 [2021-07-14 18:14:12,237 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 287 [2021-07-14 18:14:13,193 WARN L205 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 1238 DAG size of output: 681 [2021-07-14 18:14:14,207 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 428 DAG size of output: 584 [2021-07-14 18:14:15,100 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 499 [2021-07-14 18:14:15,288 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 324 [2021-07-14 18:14:15,443 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 322 [2021-07-14 18:14:16,250 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 201 [2021-07-14 18:14:17,023 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 286 [2021-07-14 18:14:17,958 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 214 [2021-07-14 18:14:18,122 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 256 [2021-07-14 18:14:18,901 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 401 DAG size of output: 347 [2021-07-14 18:14:19,544 WARN L205 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 594 DAG size of output: 524 [2021-07-14 18:14:20,945 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 266 [2021-07-14 18:14:22,828 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 188 [2021-07-14 18:14:22,968 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 191 [2021-07-14 18:14:23,163 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 377 DAG size of output: 262 [2021-07-14 18:14:23,502 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 470 DAG size of output: 355 [2021-07-14 18:14:23,952 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 397 [2021-07-14 18:14:24,684 WARN L205 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 695 DAG size of output: 559 [2021-07-14 18:14:26,159 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 977 DAG size of output: 792 [2021-07-14 18:14:27,696 WARN L205 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1064 DAG size of output: 842 [2021-07-14 18:14:29,572 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 1243 DAG size of output: 920 [2021-07-14 18:14:31,847 WARN L205 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 1442 DAG size of output: 1089 [2021-07-14 18:14:32,429 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 457 [2021-07-14 18:14:32,715 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 383 [2021-07-14 18:14:33,076 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 429 [2021-07-14 18:14:33,825 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 239 [2021-07-14 18:14:33,954 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 249 [2021-07-14 18:14:34,898 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 344 [2021-07-14 18:14:35,293 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 395 [2021-07-14 18:14:36,544 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 202 [2021-07-14 18:14:36,775 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 332 [2021-07-14 18:14:37,124 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 381 [2021-07-14 18:14:37,490 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 401 [2021-07-14 18:14:38,254 WARN L205 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 692 DAG size of output: 593 [2021-07-14 18:14:38,660 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 444 [2021-07-14 18:14:39,584 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 233 [2021-07-14 18:14:39,772 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2021-07-14 18:14:40,448 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 345 [2021-07-14 18:14:40,868 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 429 DAG size of output: 398 [2021-07-14 18:14:41,609 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 217 [2021-07-14 18:14:42,251 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 245 [2021-07-14 18:14:42,547 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 344 [2021-07-14 18:14:42,960 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 397 [2021-07-14 18:14:43,737 WARN L205 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 676 DAG size of output: 601 [2021-07-14 18:14:45,137 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1077 DAG size of output: 809 [2021-07-14 18:14:46,796 WARN L205 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1165 DAG size of output: 847 [2021-07-14 18:14:51,238 WARN L205 SmtUtils]: Spent 4.44 s on a formula simplification. DAG size of input: 2290 DAG size of output: 1526 [2021-07-14 18:14:57,244 WARN L205 SmtUtils]: Spent 6.00 s on a formula simplification. DAG size of input: 3340 DAG size of output: 2063 [2021-07-14 18:15:04,324 WARN L205 SmtUtils]: Spent 7.07 s on a formula simplification. DAG size of input: 3491 DAG size of output: 2236 [2021-07-14 18:15:12,623 WARN L205 SmtUtils]: Spent 8.28 s on a formula simplification. DAG size of input: 3713 DAG size of output: 2317 [2021-07-14 18:15:31,199 WARN L205 SmtUtils]: Spent 18.56 s on a formula simplification. DAG size of input: 7370 DAG size of output: 4532 [2021-07-14 18:15:53,580 WARN L205 SmtUtils]: Spent 22.35 s on a formula simplification. DAG size of input: 7654 DAG size of output: 4652 [2021-07-14 18:16:15,958 WARN L205 SmtUtils]: Spent 22.35 s on a formula simplification. DAG size of input: 7654 DAG size of output: 4652 [2021-07-14 18:16:41,633 WARN L205 SmtUtils]: Spent 25.65 s on a formula simplification. DAG size of input: 7669 DAG size of output: 4667 [2021-07-14 18:16:42,428 WARN L205 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 4661 [2021-07-14 18:17:10,598 WARN L205 SmtUtils]: Spent 28.15 s on a formula simplification. DAG size of input: 4663 DAG size of output: 6220 [2021-07-14 18:17:20,728 WARN L205 SmtUtils]: Spent 10.08 s on a formula simplification. DAG size of input: 4573 DAG size of output: 4534 [2021-07-14 18:17:43,867 WARN L205 SmtUtils]: Spent 23.08 s on a formula simplification. DAG size of input: 4531 DAG size of output: 4865 [2021-07-14 18:17:58,986 WARN L205 SmtUtils]: Spent 15.07 s on a formula simplification. DAG size of input: 3153 DAG size of output: 3275 [2021-07-14 18:18:09,155 WARN L205 SmtUtils]: Spent 10.15 s on a formula simplification. DAG size of input: 3100 DAG size of output: 3091 [2021-07-14 18:18:27,002 WARN L205 SmtUtils]: Spent 17.83 s on a formula simplification. DAG size of input: 2740 DAG size of output: 4110 [2021-07-14 18:18:27,918 WARN L205 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 2692 DAG size of output: 2692 [2021-07-14 18:18:28,202 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 256 [2021-07-14 18:18:28,674 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 1341 [2021-07-14 18:18:28,971 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 1234 [2021-07-14 18:18:29,108 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2021-07-14 18:18:29,246 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 668 DAG size of output: 668 [2021-07-14 18:18:29,373 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 635 DAG size of output: 635 [2021-07-14 18:18:30,666 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 355 DAG size of output: 219 [2021-07-14 18:18:30,788 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 685 DAG size of output: 685 [2021-07-14 18:18:31,359 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 596 DAG size of output: 558 [2021-07-14 18:18:32,446 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 189 [2021-07-14 18:18:32,647 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 484 DAG size of output: 318 [2021-07-14 18:18:33,008 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 687 DAG size of output: 429 [2021-07-14 18:18:33,478 WARN L205 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 846 DAG size of output: 502 [2021-07-14 18:18:33,876 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 867 DAG size of output: 450 [2021-07-14 18:18:34,351 WARN L205 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 1736 DAG size of output: 1736 [2021-07-14 18:18:34,562 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 1598 [2021-07-14 18:18:34,899 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 1498 [2021-07-14 18:18:35,167 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 1220 DAG size of output: 1220 [2021-07-14 18:18:35,644 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 1076 DAG size of output: 852 [2021-07-14 18:18:36,180 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 705 DAG size of output: 705 [2021-07-14 18:18:37,121 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 197 [2021-07-14 18:18:38,083 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 487 DAG size of output: 313 [2021-07-14 18:18:38,359 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 614 DAG size of output: 375 [2021-07-14 18:18:40,178 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 420 DAG size of output: 357 [2021-07-14 18:18:41,581 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 227 [2021-07-14 18:18:42,644 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 556 DAG size of output: 391 [2021-07-14 18:18:43,164 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 871 DAG size of output: 621 [2021-07-14 18:18:44,137 WARN L205 SmtUtils]: Spent 968.00 ms on a formula simplification. DAG size of input: 1446 DAG size of output: 922 [2021-07-14 18:18:45,298 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 1728 DAG size of output: 970 [2021-07-14 18:18:46,432 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 1758 DAG size of output: 839 [2021-07-14 18:18:46,695 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 283 [2021-07-14 18:18:48,395 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1922 DAG size of output: 903 [2021-07-14 18:18:50,402 WARN L205 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 2598 DAG size of output: 1165 [2021-07-14 18:18:56,406 WARN L205 SmtUtils]: Spent 5.99 s on a formula simplification. DAG size of input: 4518 DAG size of output: 2219 [2021-07-14 18:18:57,159 WARN L205 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 486 DAG size of output: 525 [2021-07-14 18:18:57,531 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 477 DAG size of output: 477 [2021-07-14 18:18:58,478 WARN L205 SmtUtils]: Spent 943.00 ms on a formula simplification. DAG size of input: 474 DAG size of output: 729 [2021-07-14 18:18:58,756 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 468 DAG size of output: 338 [2021-07-14 18:18:59,476 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 496 DAG size of output: 273 [2021-07-14 18:18:59,746 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 279 [2021-07-14 18:19:00,090 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 325 [2021-07-14 18:19:07,081 WARN L205 SmtUtils]: Spent 6.98 s on a formula simplification. DAG size of input: 4961 DAG size of output: 2195 [2021-07-14 18:19:15,541 WARN L205 SmtUtils]: Spent 8.44 s on a formula simplification. DAG size of input: 5328 DAG size of output: 2407 [2021-07-14 18:19:26,288 WARN L205 SmtUtils]: Spent 10.72 s on a formula simplification. DAG size of input: 6680 DAG size of output: 2674 [2021-07-14 18:19:38,205 WARN L205 SmtUtils]: Spent 11.89 s on a formula simplification. DAG size of input: 6693 DAG size of output: 2686 [2021-07-14 18:19:52,587 WARN L205 SmtUtils]: Spent 14.35 s on a formula simplification. DAG size of input: 8215 DAG size of output: 3079 [2021-07-14 18:20:07,015 WARN L205 SmtUtils]: Spent 14.40 s on a formula simplification. DAG size of input: 8215 DAG size of output: 3079 [2021-07-14 18:20:23,977 WARN L205 SmtUtils]: Spent 16.92 s on a formula simplification. DAG size of input: 8225 DAG size of output: 3069 [2021-07-14 18:20:37,486 WARN L205 SmtUtils]: Spent 13.49 s on a formula simplification. DAG size of input: 3054 DAG size of output: 3247 [2021-07-14 18:20:43,599 WARN L205 SmtUtils]: Spent 6.09 s on a formula simplification. DAG size of input: 2778 DAG size of output: 2144 [2021-07-14 18:20:48,535 WARN L205 SmtUtils]: Spent 4.92 s on a formula simplification. DAG size of input: 1921 DAG size of output: 2107 [2021-07-14 18:20:52,925 WARN L205 SmtUtils]: Spent 4.38 s on a formula simplification. DAG size of input: 1844 DAG size of output: 1869 [2021-07-14 18:20:53,139 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 1774 [2021-07-14 18:20:53,318 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 1623 [2021-07-14 18:20:53,508 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 271 [2021-07-14 18:20:54,145 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 234 [2021-07-14 18:20:54,651 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 429 DAG size of output: 302 [2021-07-14 18:20:54,815 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 1442 [2021-07-14 18:20:55,141 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 262 [2021-07-14 18:20:55,329 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 233 [2021-07-14 18:20:55,899 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 172 [2021-07-14 18:20:56,174 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 1292 DAG size of output: 1292 [2021-07-14 18:20:56,435 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 265 [2021-07-14 18:20:56,577 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 180 [2021-07-14 18:20:56,758 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 204 [2021-07-14 18:20:56,950 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 214 [2021-07-14 18:20:58,023 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 1104 DAG size of output: 1104 [2021-07-14 18:20:58,766 WARN L205 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 602 DAG size of output: 490 [2021-07-14 18:20:59,800 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 509 [2021-07-14 18:21:00,396 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 338 [2021-07-14 18:21:00,720 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 500 DAG size of output: 441 [2021-07-14 18:21:01,120 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 702 DAG size of output: 535 [2021-07-14 18:21:01,247 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 624 DAG size of output: 624 [2021-07-14 18:21:01,862 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 353 [2021-07-14 18:21:02,581 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 204 [2021-07-14 18:21:02,723 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 216 [2021-07-14 18:21:03,391 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 291 [2021-07-14 18:21:04,165 WARN L205 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 1185 DAG size of output: 751 [2021-07-14 18:21:05,295 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 1369 DAG size of output: 911 [2021-07-14 18:21:06,539 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1497 DAG size of output: 994 [2021-07-14 18:21:08,007 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1806 DAG size of output: 1194 [2021-07-14 18:21:08,197 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 248 [2021-07-14 18:21:08,387 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 207 [2021-07-14 18:21:08,698 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 232 [2021-07-14 18:21:09,294 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 169 [2021-07-14 18:21:09,435 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 207 [2021-07-14 18:21:09,591 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 223 [2021-07-14 18:21:11,300 WARN L205 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 2038 DAG size of output: 1341 [2021-07-14 18:21:13,447 WARN L205 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 2187 DAG size of output: 1400 [2021-07-14 18:21:16,621 WARN L205 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 2655 DAG size of output: 1823 [2021-07-14 18:21:20,682 WARN L205 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 2932 DAG size of output: 2078 [2021-07-14 18:21:25,843 WARN L205 SmtUtils]: Spent 5.14 s on a formula simplification. DAG size of input: 3415 DAG size of output: 2208 [2021-07-14 18:21:31,637 WARN L205 SmtUtils]: Spent 5.78 s on a formula simplification. DAG size of input: 3441 DAG size of output: 2213 [2021-07-14 18:21:37,470 WARN L205 SmtUtils]: Spent 5.82 s on a formula simplification. DAG size of input: 3441 DAG size of output: 2213 [2021-07-14 18:21:43,836 WARN L205 SmtUtils]: Spent 6.35 s on a formula simplification. DAG size of input: 3444 DAG size of output: 2217 [2021-07-14 18:21:44,099 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 2213 [2021-07-14 18:21:44,585 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 2213 DAG size of output: 2213 [2021-07-14 18:21:44,846 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 2208 [2021-07-14 18:21:49,603 WARN L205 SmtUtils]: Spent 4.75 s on a formula simplification. DAG size of input: 2078 DAG size of output: 1870 [2021-07-14 18:21:49,877 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 1107 DAG size of output: 1107 [2021-07-14 18:21:51,842 WARN L205 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1010 DAG size of output: 875 [2021-07-14 18:21:52,380 WARN L205 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 409 DAG size of output: 416 [2021-07-14 18:21:52,570 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 188 [2021-07-14 18:21:53,033 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 197 [2021-07-14 18:21:54,122 WARN L205 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 599 DAG size of output: 529 [2021-07-14 18:21:54,293 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 289 [2021-07-14 18:21:54,893 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 258 [2021-07-14 18:21:55,623 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 286 [2021-07-14 18:21:55,874 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 593 DAG size of output: 383 [2021-07-14 18:21:56,048 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 947 DAG size of output: 945 [2021-07-14 18:21:57,418 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 789 DAG size of output: 735 [2021-07-14 18:21:57,980 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 547 DAG size of output: 547 [2021-07-14 18:21:58,478 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 537 DAG size of output: 464 [2021-07-14 18:21:59,140 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 242 [2021-07-14 18:21:59,307 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 403 DAG size of output: 252 [2021-07-14 18:21:59,614 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 239 [2021-07-14 18:22:00,276 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 527 DAG size of output: 315 [2021-07-14 18:22:00,411 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 196 [2021-07-14 18:22:00,843 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 582 DAG size of output: 346 [2021-07-14 18:22:01,163 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 589 DAG size of output: 350 [2021-07-14 18:22:01,734 WARN L205 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 574 [2021-07-14 18:22:02,031 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 292 [2021-07-14 18:22:02,178 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 195 [2021-07-14 18:22:02,947 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 213 [2021-07-14 18:22:03,088 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 199 [2021-07-14 18:22:03,633 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 180 [2021-07-14 18:22:04,431 WARN L205 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 1288 DAG size of output: 687 [2021-07-14 18:22:05,366 WARN L205 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 1291 DAG size of output: 686 [2021-07-14 18:22:06,322 WARN L205 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 1291 DAG size of output: 686 [2021-07-14 18:22:07,307 WARN L205 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 1297 DAG size of output: 692 [2021-07-14 18:22:07,635 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 491 [2021-07-14 18:22:08,185 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 451 DAG size of output: 304 [2021-07-14 18:22:08,496 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 355 [2021-07-14 18:22:08,885 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 360 [2021-07-14 18:22:09,271 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 360 [2021-07-14 18:22:09,670 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 363 [2021-07-14 18:22:09,982 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 365 [2021-07-14 18:22:10,116 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 248 [2021-07-14 18:22:10,994 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 18:22:10,996 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 18:22:10,996 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 18:22:10,996 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:3 [2021-07-14 18:22:11,012 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:22:11,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55173327] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:22:11,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:22:11,012 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 20] total 32 [2021-07-14 18:22:11,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727997859] [2021-07-14 18:22:11,012 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 18:22:11,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:22:11,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 18:22:11,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=975, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 18:22:11,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:22:11,013 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:22:11,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 32 states have internal predecessors, (50), 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) [2021-07-14 18:22:11,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:22:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:22:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:22:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:22:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:22:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:22:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:22:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:22:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:22:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 18:22:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:22:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 18:22:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:22:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 18:22:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:22:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:22:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:22:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:22:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:22:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:22:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:22:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:22:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:22:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:22:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 18:22:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:22:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 18:22:11,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:22:11,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 18:22:11,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 18:22:11,375 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1343 [2021-07-14 18:22:11,375 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:22:11,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:22:11,376 INFO L82 PathProgramCache]: Analyzing trace with hash 174754002, now seen corresponding path program 14 times [2021-07-14 18:22:11,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:22:11,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661695225] [2021-07-14 18:22:11,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:22:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:22:11,592 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 78 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:22:11,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:22:11,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661695225] [2021-07-14 18:22:11,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661695225] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:22:11,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066779466] [2021-07-14 18:22:11,593 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:22:11,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 18:22:11,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 18:22:11,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-14 18:22:11,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:22:11,691 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 91 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:22:11,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066779466] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:22:11,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 18:22:11,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-07-14 18:22:11,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499654093] [2021-07-14 18:22:11,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 18:22:11,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 18:22:11,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 18:22:11,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2021-07-14 18:22:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:22:11,692 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 18:22:11,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 23 states have internal predecessors, (32), 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) [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 18:22:11,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 18:22:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 18:22:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:22:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 18:22:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 18:22:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 18:22:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 18:22:11,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:22:11,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 18:22:11,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:22:11,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 18:22:11,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 18:22:11,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 18:22:11,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 18:22:11,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 18:22:11,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 18:22:11,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 18:22:12,161 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11576 [2021-07-14 18:22:12,162 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 18:22:12,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 18:22:12,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1123135217, now seen corresponding path program 15 times [2021-07-14 18:22:12,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 18:22:12,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863260675] [2021-07-14 18:22:12,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 18:22:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 18:22:12,327 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 18:22:12,327 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 18:22:12,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863260675] [2021-07-14 18:22:12,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863260675] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 18:22:12,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754380166] [2021-07-14 18:22:12,328 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 18:22:12,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-07-14 18:22:12,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 18:22:12,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 49 conjunts are in the unsatisfiable core [2021-07-14 18:22:12,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 18:22:13,441 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2021-07-14 18:22:13,442 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 18:22:13,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 27 new quantified variables, introduced 91 case distinctions, treesize of input 63 treesize of output 774 [2021-07-14 18:22:14,553 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 429 DAG size of output: 301 [2021-07-14 18:22:14,771 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 334 [2021-07-14 18:22:15,012 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 363 [2021-07-14 18:22:16,380 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 673 DAG size of output: 609 [2021-07-14 18:22:16,672 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 701 DAG size of output: 636 [2021-07-14 18:22:17,318 WARN L205 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 1105 DAG size of output: 912 [2021-07-14 18:22:18,138 WARN L205 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 1137 DAG size of output: 937 [2021-07-14 18:22:19,104 WARN L205 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 1169 DAG size of output: 969 [2021-07-14 18:22:20,333 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1200 DAG size of output: 1000 [2021-07-14 18:22:21,753 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1232 DAG size of output: 1032 [2021-07-14 18:22:22,998 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 235 [2021-07-14 18:22:23,147 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 256 [2021-07-14 18:22:23,351 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 289 [2021-07-14 18:22:23,557 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 321 [2021-07-14 18:22:23,799 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 354 [2021-07-14 18:22:25,726 WARN L205 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1480 DAG size of output: 1192 [2021-07-14 18:22:26,930 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 360 DAG size of output: 328 [2021-07-14 18:22:27,154 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 657 DAG size of output: 593 [2021-07-14 18:22:28,513 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 589 [2021-07-14 18:22:29,060 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1122 [2021-07-14 18:22:29,779 WARN L205 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 1279 DAG size of output: 1150 [2021-07-14 18:22:30,695 WARN L205 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 1310 DAG size of output: 1181 [2021-07-14 18:22:31,781 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1340 DAG size of output: 1211 [2021-07-14 18:22:33,203 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1369 DAG size of output: 1239 [2021-07-14 18:22:34,703 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 460 DAG size of output: 316 [2021-07-14 18:22:34,923 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 348 [2021-07-14 18:22:35,175 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 523 DAG size of output: 375 [2021-07-14 18:22:35,498 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 406 [2021-07-14 18:22:35,845 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 584 DAG size of output: 436 [2021-07-14 18:22:37,918 WARN L205 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 1800 DAG size of output: 1526 [2021-07-14 18:22:40,359 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 1831 DAG size of output: 1557 [2021-07-14 18:22:45,138 WARN L205 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 3112 DAG size of output: 2563 [2021-07-14 18:22:50,505 WARN L205 SmtUtils]: Spent 5.35 s on a formula simplification. DAG size of input: 3143 DAG size of output: 2594 [2021-07-14 18:22:56,299 WARN L205 SmtUtils]: Spent 5.78 s on a formula simplification. DAG size of input: 3171 DAG size of output: 2622 [2021-07-14 18:23:02,856 WARN L205 SmtUtils]: Spent 6.54 s on a formula simplification. DAG size of input: 3200 DAG size of output: 2649 [2021-07-14 18:23:10,155 WARN L205 SmtUtils]: Spent 7.28 s on a formula simplification. DAG size of input: 3246 DAG size of output: 2693 [2021-07-14 18:23:11,397 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 234 [2021-07-14 18:23:11,542 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 262 [2021-07-14 18:23:11,734 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 295 [2021-07-14 18:23:11,934 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 327 [2021-07-14 18:23:13,128 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 333 [2021-07-14 18:23:13,351 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 674 DAG size of output: 610 [2021-07-14 18:23:14,426 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 302 [2021-07-14 18:23:14,643 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 335 [2021-07-14 18:23:15,148 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 881 [2021-07-14 18:23:15,832 WARN L205 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 1104 DAG size of output: 911 [2021-07-14 18:23:16,651 WARN L205 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 1136 DAG size of output: 943 [2021-07-14 18:23:17,639 WARN L205 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 1168 DAG size of output: 975 [2021-07-14 18:23:18,885 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1199 DAG size of output: 1006 [2021-07-14 18:23:20,569 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 1441 DAG size of output: 1168 [2021-07-14 18:23:22,501 WARN L205 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 1474 DAG size of output: 1201 [2021-07-14 18:23:23,589 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 302 [2021-07-14 18:23:23,785 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 335 [2021-07-14 18:23:24,033 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 493 DAG size of output: 364 [2021-07-14 18:23:25,188 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 304 [2021-07-14 18:23:25,403 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 467 DAG size of output: 339 [2021-07-14 18:23:25,696 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 499 DAG size of output: 370 [2021-07-14 18:23:26,294 WARN L205 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 890 DAG size of output: 633 [2021-07-14 18:23:27,007 WARN L205 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 923 DAG size of output: 659 [2021-07-14 18:23:27,854 WARN L205 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 957 DAG size of output: 693 [2021-07-14 18:23:28,859 WARN L205 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 990 DAG size of output: 726 [2021-07-14 18:23:30,008 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 1024 DAG size of output: 760 [2021-07-14 18:23:32,083 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1051 DAG size of output: 779 [2021-07-14 18:23:35,632 WARN L205 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 2305 DAG size of output: 1755 [2021-07-14 18:23:39,670 WARN L205 SmtUtils]: Spent 4.03 s on a formula simplification. DAG size of input: 2338 DAG size of output: 1788 [2021-07-14 18:23:44,025 WARN L205 SmtUtils]: Spent 4.34 s on a formula simplification. DAG size of input: 2368 DAG size of output: 1818 [2021-07-14 18:23:48,894 WARN L205 SmtUtils]: Spent 4.86 s on a formula simplification. DAG size of input: 2399 DAG size of output: 1847 [2021-07-14 18:24:02,411 WARN L205 SmtUtils]: Spent 13.50 s on a formula simplification. DAG size of input: 5327 DAG size of output: 4237 [2021-07-14 18:24:17,375 WARN L205 SmtUtils]: Spent 14.94 s on a formula simplification. DAG size of input: 5355 DAG size of output: 4263 [2021-07-14 18:24:32,399 WARN L205 SmtUtils]: Spent 15.00 s on a formula simplification. DAG size of input: 5355 DAG size of output: 4263 [2021-07-14 18:24:49,702 WARN L205 SmtUtils]: Spent 17.28 s on a formula simplification. DAG size of input: 5378 DAG size of output: 4286 [2021-07-14 18:25:18,808 WARN L205 SmtUtils]: Spent 29.08 s on a formula simplification. DAG size of input: 4288 DAG size of output: 5230 [2021-07-14 18:25:52,923 WARN L205 SmtUtils]: Spent 34.08 s on a formula simplification. DAG size of input: 4282 DAG size of output: 6377 [2021-07-14 18:25:53,448 WARN L205 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 4274 [2021-07-14 18:25:54,846 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 362 DAG size of output: 309 [2021-07-14 18:25:55,114 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 334 [2021-07-14 18:25:55,761 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 231 [2021-07-14 18:25:55,893 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 256 [2021-07-14 18:25:56,474 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 221 [2021-07-14 18:25:56,593 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 244 [2021-07-14 18:25:56,862 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 352 [2021-07-14 18:25:57,195 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 375 [2021-07-14 18:25:57,877 WARN L205 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 657 DAG size of output: 545 [2021-07-14 18:25:58,555 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 240 [2021-07-14 18:25:59,260 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 250 [2021-07-14 18:25:59,528 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 346 [2021-07-14 18:26:00,817 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 299 [2021-07-14 18:26:01,368 WARN L205 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 618 DAG size of output: 516 [2021-07-14 18:26:02,014 WARN L205 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 643 DAG size of output: 538 [2021-07-14 18:26:03,345 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1114 DAG size of output: 848 [2021-07-14 18:26:03,853 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 228 [2021-07-14 18:26:03,966 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 248 [2021-07-14 18:26:04,465 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 234 [2021-07-14 18:26:04,702 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 340 [2021-07-14 18:26:05,773 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 275 [2021-07-14 18:26:06,263 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 527 DAG size of output: 481 [2021-07-14 18:26:06,836 WARN L205 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 550 DAG size of output: 501 [2021-07-14 18:26:07,504 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 256 [2021-07-14 18:26:08,053 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 245 [2021-07-14 18:26:08,308 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 349 [2021-07-14 18:26:08,612 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 385 DAG size of output: 370 [2021-07-14 18:26:09,730 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 287 [2021-07-14 18:26:09,949 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 307 [2021-07-14 18:26:10,557 WARN L205 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 514 [2021-07-14 18:26:11,776 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 926 DAG size of output: 806 [2021-07-14 18:26:14,605 WARN L205 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 1850 DAG size of output: 1449 [2021-07-14 18:26:17,802 WARN L205 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 1896 DAG size of output: 1472 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown