/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-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 21:42:15,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 21:42:15,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 21:42:15,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 21:42:15,315 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-NewStatesSleep-NoLbe-Lockstep.epf [2021-06-13 21:42:15,347 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 21:42:15,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 21:42:15,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 21:42:15,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 21:42:15,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 21:42:15,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 21:42:15,350 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 21:42:15,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 21:42:15,351 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 21:42:15,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 21:42:15,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 21:42:15,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 21:42:15,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 21:42:15,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 21:42:15,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 21:42:15,352 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 21:42:15,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 21:42:15,353 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 21:42:15,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 21:42:15,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 21:42:15,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 21:42:15,353 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 21:42:15,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 21:42:15,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 21:42:15,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 21:42:15,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 21:42:15,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 21:42:15,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 21:42:15,354 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-13 21:42:15,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 21:42:15,355 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 21:42:15,355 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 21:42:15,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 21:42:15,355 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-13 21:42:15,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 21:42:15,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 21:42:15,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 21:42:15,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 21:42:15,679 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 21:42:15,680 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 21:42:15,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl [2021-06-13 21:42:15,681 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl' [2021-06-13 21:42:15,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 21:42:15,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 21:42:15,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 21:42:15,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 21:42:15,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 21:42:15,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:42:15" (1/1) ... [2021-06-13 21:42:15,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:42:15" (1/1) ... [2021-06-13 21:42:15,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 21:42:15,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 21:42:15,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 21:42:15,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 21:42:15,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:42:15" (1/1) ... [2021-06-13 21:42:15,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:42:15" (1/1) ... [2021-06-13 21:42:15,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:42:15" (1/1) ... [2021-06-13 21:42:15,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:42:15" (1/1) ... [2021-06-13 21:42:15,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:42:15" (1/1) ... [2021-06-13 21:42:15,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:42:15" (1/1) ... [2021-06-13 21:42:15,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:42:15" (1/1) ... [2021-06-13 21:42:15,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 21:42:15,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 21:42:15,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 21:42:15,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 21:42:15,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:42:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 21:42:15,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-13 21:42:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-13 21:42:15,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-13 21:42:15,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-13 21:42:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-13 21:42:15,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-13 21:42:15,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-13 21:42:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 21:42:15,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 21:42:15,804 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 21:42:16,057 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 21:42:16,058 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-06-13 21:42:16,058 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-06-13 21:42:16,059 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-06-13 21:42:16,060 INFO L202 PluginConnector]: Adding new model unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 09:42:16 BoogieIcfgContainer [2021-06-13 21:42:16,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 21:42:16,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 21:42:16,062 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 21:42:16,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 21:42:16,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:42:15" (1/2) ... [2021-06-13 21:42:16,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577f6fc4 and model type unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 09:42:16, skipping insertion in model container [2021-06-13 21:42:16,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 09:42:16" (2/2) ... [2021-06-13 21:42:16,067 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.bpl [2021-06-13 21:42:16,071 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 21:42:16,072 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 21:42:16,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 21:42:16,072 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 21:42:16,095 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-13 21:42:16,112 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 [2021-06-13 21:42:16,224 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 21:42:16,224 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 21:42:16,224 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 21:42:16,225 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 21:42:16,225 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 21:42:16,225 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 21:42:16,225 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 21:42:16,225 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 21:42:16,259 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:16,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:16,268 INFO L82 PathProgramCache]: Analyzing trace with hash -525039273, now seen corresponding path program 1 times [2021-06-13 21:42:16,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:16,277 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944315935] [2021-06-13 21:42:16,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:16,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:16,420 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:16,420 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944315935] [2021-06-13 21:42:16,421 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944315935] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 21:42:16,421 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 21:42:16,422 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-13 21:42:16,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65556304] [2021-06-13 21:42:16,427 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 21:42:16,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:42:16,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 21:42:16,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 21:42:16,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:16,449 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:42:16,450 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) [2021-06-13 21:42:16,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:16,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:16,476 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 21:42:16,476 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:16,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:16,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1039579977, now seen corresponding path program 1 times [2021-06-13 21:42:16,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:16,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112207138] [2021-06-13 21:42:16,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:16,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:16,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:16,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112207138] [2021-06-13 21:42:16,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112207138] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:16,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693696566] [2021-06-13 21:42:16,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 21:42:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:16,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-13 21:42:16,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 21:42:16,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:16,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693696566] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:16,658 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 21:42:16,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-06-13 21:42:16,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730671774] [2021-06-13 21:42:16,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-13 21:42:16,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:42:16,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-13 21:42:16,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-13 21:42:16,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:16,661 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:42:16,661 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) [2021-06-13 21:42:16,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:16,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:16,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:16,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:16,901 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 21:42:16,901 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:16,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:16,901 INFO L82 PathProgramCache]: Analyzing trace with hash -2133775116, now seen corresponding path program 1 times [2021-06-13 21:42:16,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:16,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415155547] [2021-06-13 21:42:16,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:16,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 21:42:16,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:16,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415155547] [2021-06-13 21:42:16,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415155547] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:16,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480572949] [2021-06-13 21:42:16,960 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 [2021-06-13 21:42:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:16,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-13 21:42:16,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 21:42:17,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 21:42:17,057 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480572949] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:17,057 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 21:42:17,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-06-13 21:42:17,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517779704] [2021-06-13 21:42:17,058 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-13 21:42:17,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:42:17,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-13 21:42:17,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-13 21:42:17,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:17,059 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:42:17,059 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) [2021-06-13 21:42:17,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:17,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:17,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:17,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:17,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:17,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:17,292 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 21:42:17,292 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:17,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:17,293 INFO L82 PathProgramCache]: Analyzing trace with hash 629216442, now seen corresponding path program 2 times [2021-06-13 21:42:17,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:17,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583558696] [2021-06-13 21:42:17,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:17,353 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:17,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:17,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583558696] [2021-06-13 21:42:17,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583558696] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:17,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394824627] [2021-06-13 21:42:17,356 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) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 21:42:17,393 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 21:42:17,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 21:42:17,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-13 21:42:17,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 21:42:17,448 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:17,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394824627] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:17,448 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 21:42:17,448 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-06-13 21:42:17,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942825989] [2021-06-13 21:42:17,449 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 21:42:17,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:42:17,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 21:42:17,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-13 21:42:17,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:17,450 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:42:17,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 21:42:17,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:17,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:17,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:17,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:17,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:17,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:17,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:17,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:17,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 21:42:17,701 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:17,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:17,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1431854884, now seen corresponding path program 3 times [2021-06-13 21:42:17,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:17,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218208834] [2021-06-13 21:42:17,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:17,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:17,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218208834] [2021-06-13 21:42:17,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218208834] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:17,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518289809] [2021-06-13 21:42:17,760 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 [2021-06-13 21:42:17,786 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-13 21:42:17,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 21:42:17,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-13 21:42:17,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 21:42:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:17,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518289809] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:17,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 21:42:17,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-06-13 21:42:17,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479439662] [2021-06-13 21:42:17,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 21:42:17,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:42:17,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 21:42:17,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-13 21:42:17,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:17,847 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:42:17,847 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 21:42:17,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:17,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:17,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:17,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:17,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:17,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:17,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:17,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:17,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:17,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:18,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 21:42:18,109 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:18,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:18,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1402717340, now seen corresponding path program 4 times [2021-06-13 21:42:18,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:18,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639233842] [2021-06-13 21:42:18,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:18,162 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 21:42:18,163 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:18,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639233842] [2021-06-13 21:42:18,163 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639233842] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:18,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980319748] [2021-06-13 21:42:18,165 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 [2021-06-13 21:42:18,233 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 21:42:18,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 21:42:18,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-13 21:42:18,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 21:42:18,374 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 21:42:18,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-06-13 21:42:18,452 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 21:42:18,453 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 21:42:18,454 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 21:42:18,454 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-06-13 21:42:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:18,461 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980319748] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:18,461 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 21:42:18,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-06-13 21:42:18,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120567463] [2021-06-13 21:42:18,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 21:42:18,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:42:18,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 21:42:18,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-06-13 21:42:18,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:18,463 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:42:18,463 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 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) [2021-06-13 21:42:18,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:18,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:18,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:18,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:18,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:18,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:18,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:18,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:18,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:18,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:18,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:18,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:18,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 21:42:18,741 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:18,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:18,741 INFO L82 PathProgramCache]: Analyzing trace with hash 2109865252, now seen corresponding path program 5 times [2021-06-13 21:42:18,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:18,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380525575] [2021-06-13 21:42:18,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:18,811 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:18,811 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:18,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380525575] [2021-06-13 21:42:18,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380525575] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:18,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936593657] [2021-06-13 21:42:18,812 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 [2021-06-13 21:42:18,850 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-13 21:42:18,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 21:42:18,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-13 21:42:18,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 21:42:18,914 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-13 21:42:18,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936593657] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:18,915 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 21:42:18,915 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 11 [2021-06-13 21:42:18,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456457780] [2021-06-13 21:42:18,917 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 21:42:18,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:42:18,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 21:42:18,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-06-13 21:42:18,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:18,923 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:42:18,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 11 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) [2021-06-13 21:42:18,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:18,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:18,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:18,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:18,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:18,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:18,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:19,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:19,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:19,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:19,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:19,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:19,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:19,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:19,276 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-13 21:42:19,277 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:19,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:19,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1995445183, now seen corresponding path program 6 times [2021-06-13 21:42:19,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:19,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250082390] [2021-06-13 21:42:19,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:19,343 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:19,343 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:19,343 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250082390] [2021-06-13 21:42:19,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250082390] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:19,343 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214997951] [2021-06-13 21:42:19,343 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 [2021-06-13 21:42:19,383 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-13 21:42:19,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 21:42:19,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-13 21:42:19,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 21:42:19,458 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:19,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214997951] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:19,458 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 21:42:19,458 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-06-13 21:42:19,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458376158] [2021-06-13 21:42:19,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 21:42:19,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:42:19,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 21:42:19,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-06-13 21:42:19,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:19,464 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:42:19,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 21:42:19,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:19,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:19,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:19,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:19,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:19,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:19,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:19,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:19,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:19,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:19,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:19,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:19,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:19,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:19,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:19,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:19,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-13 21:42:19,749 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:19,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:19,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1031556159, now seen corresponding path program 7 times [2021-06-13 21:42:19,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:19,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822305191] [2021-06-13 21:42:19,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:19,842 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-13 21:42:19,842 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:19,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822305191] [2021-06-13 21:42:19,842 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822305191] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:19,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290271318] [2021-06-13 21:42:19,842 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 [2021-06-13 21:42:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:19,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-13 21:42:19,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 21:42:20,206 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-06-13 21:42:20,206 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 21:42:20,207 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 [2021-06-13 21:42:21,172 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 247 [2021-06-13 21:42:21,320 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 263 [2021-06-13 21:42:21,457 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 266 [2021-06-13 21:42:21,582 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 266 [2021-06-13 21:42:21,756 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 274 [2021-06-13 21:42:21,893 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 264 [2021-06-13 21:42:22,459 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 179 [2021-06-13 21:42:22,562 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 185 [2021-06-13 21:42:22,709 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 239 [2021-06-13 21:42:23,715 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 21:42:23,717 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 21:42:23,717 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 21:42:23,718 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-06-13 21:42:23,724 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:23,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290271318] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:23,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 21:42:23,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12] total 19 [2021-06-13 21:42:23,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623985431] [2021-06-13 21:42:23,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-13 21:42:23,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:42:23,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-13 21:42:23,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-06-13 21:42:23,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:23,726 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:42:23,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.6) internal successors, (32), 19 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) [2021-06-13 21:42:23,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:23,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:23,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:23,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:23,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:23,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:23,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:23,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:23,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:23,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 21:42:24,074 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-13 21:42:24,074 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:24,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:24,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1104117793, now seen corresponding path program 8 times [2021-06-13 21:42:24,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:24,075 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188960185] [2021-06-13 21:42:24,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 32 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:24,222 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:24,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188960185] [2021-06-13 21:42:24,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188960185] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:24,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895462009] [2021-06-13 21:42:24,222 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 [2021-06-13 21:42:24,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 21:42:24,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 21:42:24,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-13 21:42:24,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 21:42:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 38 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-13 21:42:24,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895462009] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:24,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 21:42:24,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 16 [2021-06-13 21:42:24,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434274942] [2021-06-13 21:42:24,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-13 21:42:24,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:42:24,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-13 21:42:24,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-06-13 21:42:24,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:24,328 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:42:24,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 1.588235294117647) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 21:42:24,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:24,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:24,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:24,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:24,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:24,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:24,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:24,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:24,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-13 21:42:24,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:24,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:24,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:24,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:24,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:24,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:24,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:24,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:24,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:24,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 21:42:24,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-13 21:42:24,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable311 [2021-06-13 21:42:24,785 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:24,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:24,785 INFO L82 PathProgramCache]: Analyzing trace with hash -170690721, now seen corresponding path program 9 times [2021-06-13 21:42:24,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:24,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984997017] [2021-06-13 21:42:24,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:24,933 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:24,933 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:24,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984997017] [2021-06-13 21:42:24,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984997017] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:24,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157677068] [2021-06-13 21:42:24,933 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 [2021-06-13 21:42:24,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-13 21:42:24,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 21:42:24,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-13 21:42:24,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 21:42:25,064 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:25,064 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157677068] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:25,064 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 21:42:25,064 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-06-13 21:42:25,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868414867] [2021-06-13 21:42:25,065 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-13 21:42:25,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:42:25,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-13 21:42:25,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-06-13 21:42:25,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:25,066 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:42:25,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.8125) internal successors, (29), 15 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 21:42:25,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:25,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:25,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:25,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:25,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:25,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:25,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:25,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:25,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-13 21:42:25,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-13 21:42:25,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:25,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 21:42:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-13 21:42:25,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 21:42:25,488 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable312 [2021-06-13 21:42:25,489 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:25,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:25,489 INFO L82 PathProgramCache]: Analyzing trace with hash -575523042, now seen corresponding path program 10 times [2021-06-13 21:42:25,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:25,489 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767745847] [2021-06-13 21:42:25,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:25,678 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:25,678 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:25,678 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767745847] [2021-06-13 21:42:25,678 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767745847] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:25,678 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476962359] [2021-06-13 21:42:25,678 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 [2021-06-13 21:42:25,725 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 21:42:25,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 21:42:25,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-13 21:42:25,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 21:42:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:25,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476962359] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:25,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 21:42:25,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 20 [2021-06-13 21:42:25,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119328054] [2021-06-13 21:42:25,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-13 21:42:25,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:42:25,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-13 21:42:25,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2021-06-13 21:42:25,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:25,868 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:42:25,868 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) [2021-06-13 21:42:25,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:25,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:25,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:25,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:25,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:25,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:25,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:25,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:25,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-13 21:42:25,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-13 21:42:25,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-13 21:42:25,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:26,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:26,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:26,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 21:42:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-13 21:42:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 21:42:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-13 21:42:26,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 21:42:26,461 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:26,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:26,461 INFO L82 PathProgramCache]: Analyzing trace with hash -696456222, now seen corresponding path program 11 times [2021-06-13 21:42:26,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:26,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844895766] [2021-06-13 21:42:26,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:26,617 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:26,617 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:26,617 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844895766] [2021-06-13 21:42:26,617 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844895766] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:26,617 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119344906] [2021-06-13 21:42:26,617 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 [2021-06-13 21:42:26,659 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-13 21:42:26,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 21:42:26,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-13 21:42:26,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 21:42:26,818 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:26,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119344906] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:26,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 21:42:26,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-06-13 21:42:26,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622410664] [2021-06-13 21:42:26,819 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-13 21:42:26,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:42:26,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-13 21:42:26,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2021-06-13 21:42:26,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:26,819 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:42:26,820 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 21 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 21:42:26,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:26,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:26,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:26,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:26,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:26,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:26,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:26,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:26,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-13 21:42:26,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-13 21:42:26,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-13 21:42:26,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-13 21:42:26,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:27,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 21:42:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-13 21:42:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 21:42:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-13 21:42:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-13 21:42:27,428 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable314 [2021-06-13 21:42:27,428 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:27,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:27,429 INFO L82 PathProgramCache]: Analyzing trace with hash -150417506, now seen corresponding path program 12 times [2021-06-13 21:42:27,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:27,429 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338151107] [2021-06-13 21:42:27,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:27,623 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:27,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:27,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338151107] [2021-06-13 21:42:27,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338151107] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:27,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628717689] [2021-06-13 21:42:27,624 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 [2021-06-13 21:42:27,656 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-13 21:42:27,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 21:42:27,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-13 21:42:27,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 21:42:27,854 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:42:27,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628717689] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:27,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 21:42:27,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-06-13 21:42:27,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974831654] [2021-06-13 21:42:27,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-13 21:42:27,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:42:27,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-13 21:42:27,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2021-06-13 21:42:27,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:27,856 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:42:27,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.625) internal successors, (39), 23 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 21:42:27,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:27,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:27,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:27,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:27,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:27,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:27,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:27,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:27,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-13 21:42:27,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-13 21:42:27,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-13 21:42:27,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-13 21:42:27,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-13 21:42:27,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:42:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:42:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 21:42:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 21:42:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 21:42:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 21:42:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 21:42:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 21:42:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-13 21:42:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 21:42:28,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-13 21:42:28,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-13 21:42:28,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-13 21:42:28,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 21:42:28,472 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 21:42:28,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:42:28,473 INFO L82 PathProgramCache]: Analyzing trace with hash -403086494, now seen corresponding path program 13 times [2021-06-13 21:42:28,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:42:28,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331205335] [2021-06-13 21:42:28,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:42:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:28,566 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-13 21:42:28,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:42:28,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331205335] [2021-06-13 21:42:28,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331205335] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 21:42:28,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521018895] [2021-06-13 21:42:28,567 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 [2021-06-13 21:42:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:42:28,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-13 21:42:28,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 21:42:29,249 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-06-13 21:42:29,249 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 21:42:29,250 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 [2021-06-13 21:42:30,387 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 380 [2021-06-13 21:42:30,540 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 383 [2021-06-13 21:42:31,756 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 299 [2021-06-13 21:42:31,892 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 321 [2021-06-13 21:42:32,168 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 513 [2021-06-13 21:42:32,429 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 516 [2021-06-13 21:42:32,904 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 913 DAG size of output: 757 [2021-06-13 21:42:33,478 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 938 DAG size of output: 782 [2021-06-13 21:42:34,519 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 397 [2021-06-13 21:42:34,692 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 488 DAG size of output: 432 [2021-06-13 21:42:34,911 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 497 DAG size of output: 439 [2021-06-13 21:42:35,712 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 414 DAG size of output: 387 [2021-06-13 21:42:36,415 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 365 [2021-06-13 21:42:36,557 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 407 DAG size of output: 392 [2021-06-13 21:42:36,839 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 718 DAG size of output: 687 [2021-06-13 21:42:37,192 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 751 DAG size of output: 720 [2021-06-13 21:42:37,630 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 760 DAG size of output: 727 [2021-06-13 21:42:38,366 WARN L205 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 1118 DAG size of output: 985 [2021-06-13 21:42:39,214 WARN L205 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 1140 DAG size of output: 1008 [2021-06-13 21:42:40,736 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 1924 DAG size of output: 1536 [2021-06-13 21:42:42,053 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 540 DAG size of output: 483 [2021-06-13 21:42:42,258 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 549 DAG size of output: 486 [2021-06-13 21:42:43,093 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 417 DAG size of output: 347 [2021-06-13 21:42:43,477 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 867 DAG size of output: 711 [2021-06-13 21:42:43,943 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 893 DAG size of output: 737 [2021-06-13 21:42:44,756 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 367 [2021-06-13 21:42:44,902 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 402 [2021-06-13 21:42:45,090 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 470 DAG size of output: 408 [2021-06-13 21:42:45,661 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 388 DAG size of output: 370 [2021-06-13 21:42:46,356 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 391 DAG size of output: 363 [2021-06-13 21:42:46,592 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 691 DAG size of output: 657 [2021-06-13 21:42:46,894 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 690 [2021-06-13 21:42:47,266 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 732 DAG size of output: 696 [2021-06-13 21:42:47,899 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 1082 DAG size of output: 940 [2021-06-13 21:42:48,652 WARN L205 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 1105 DAG size of output: 964 [2021-06-13 21:42:49,991 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1864 DAG size of output: 1466 [2021-06-13 21:42:53,340 WARN L205 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 3619 DAG size of output: 2834 [2021-06-13 21:42:57,204 WARN L205 SmtUtils]: Spent 3.85 s on a formula simplification. DAG size of input: 3664 DAG size of output: 2879 [2021-06-13 21:43:01,555 WARN L205 SmtUtils]: Spent 4.34 s on a formula simplification. DAG size of input: 3688 DAG size of output: 2903 [2021-06-13 21:43:05,884 WARN L205 SmtUtils]: Spent 4.31 s on a formula simplification. DAG size of input: 3688 DAG size of output: 2903 [2021-06-13 21:43:11,101 WARN L205 SmtUtils]: Spent 5.20 s on a formula simplification. DAG size of input: 3707 DAG size of output: 2922 [2021-06-13 21:43:15,945 WARN L205 SmtUtils]: Spent 4.81 s on a formula simplification. DAG size of input: 2924 DAG size of output: 2915 [2021-06-13 21:43:21,186 WARN L205 SmtUtils]: Spent 5.22 s on a formula simplification. DAG size of input: 2912 DAG size of output: 3217 [2021-06-13 21:43:29,334 WARN L205 SmtUtils]: Spent 8.13 s on a formula simplification. DAG size of input: 2696 DAG size of output: 3553 [2021-06-13 21:43:29,507 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 2516 [2021-06-13 21:43:30,676 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 278 [2021-06-13 21:43:32,584 WARN L205 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 2495 DAG size of output: 2494 [2021-06-13 21:43:39,212 WARN L205 SmtUtils]: Spent 6.61 s on a formula simplification. DAG size of input: 2493 DAG size of output: 3700 [2021-06-13 21:43:39,521 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 2169 DAG size of output: 2169 [2021-06-13 21:43:39,813 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 2126 DAG size of output: 2126 [2021-06-13 21:43:40,800 WARN L205 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 654 DAG size of output: 977 [2021-06-13 21:43:41,083 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 339 [2021-06-13 21:43:41,603 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 258 [2021-06-13 21:43:42,809 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 257 [2021-06-13 21:43:43,037 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 340 [2021-06-13 21:43:43,382 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 396 [2021-06-13 21:43:43,859 WARN L205 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 799 DAG size of output: 592 [2021-06-13 21:43:44,839 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 243 [2021-06-13 21:43:45,226 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 265 [2021-06-13 21:43:45,536 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 425 [2021-06-13 21:43:46,002 WARN L205 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 669 DAG size of output: 623 [2021-06-13 21:43:47,064 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 1090 DAG size of output: 844 [2021-06-13 21:43:48,290 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 253 [2021-06-13 21:43:48,521 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 322 [2021-06-13 21:43:48,808 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 350 [2021-06-13 21:43:49,773 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 285 [2021-06-13 21:43:50,018 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 391 [2021-06-13 21:43:50,340 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 514 DAG size of output: 449 [2021-06-13 21:43:51,397 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 238 [2021-06-13 21:43:51,603 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 360 [2021-06-13 21:43:51,875 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 396 [2021-06-13 21:43:52,219 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 543 DAG size of output: 455 [2021-06-13 21:43:52,956 WARN L205 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 762 DAG size of output: 659 [2021-06-13 21:43:53,939 WARN L205 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 827 DAG size of output: 710 [2021-06-13 21:43:54,899 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 245 [2021-06-13 21:43:55,068 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 305 [2021-06-13 21:43:55,302 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 409 [2021-06-13 21:43:55,611 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 526 DAG size of output: 472 [2021-06-13 21:43:56,595 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 221 [2021-06-13 21:43:56,745 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 275 [2021-06-13 21:43:56,953 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 374 [2021-06-13 21:43:57,229 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 490 DAG size of output: 411 [2021-06-13 21:43:57,585 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 475 [2021-06-13 21:43:58,319 WARN L205 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 831 DAG size of output: 714 [2021-06-13 21:44:00,165 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 1682 DAG size of output: 1237 [2021-06-13 21:44:03,174 WARN L205 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 2518 DAG size of output: 1697 [2021-06-13 21:44:06,665 WARN L205 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 2537 DAG size of output: 1736 [2021-06-13 21:44:11,122 WARN L205 SmtUtils]: Spent 4.45 s on a formula simplification. DAG size of input: 2890 DAG size of output: 1831 [2021-06-13 21:44:12,226 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 700 DAG size of output: 1050 [2021-06-13 21:44:12,626 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 660 [2021-06-13 21:44:13,212 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 647 DAG size of output: 823 [2021-06-13 21:44:14,078 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 219 [2021-06-13 21:44:14,318 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 257 [2021-06-13 21:44:14,526 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 285 [2021-06-13 21:44:14,797 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 348 [2021-06-13 21:44:15,182 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 565 DAG size of output: 513 [2021-06-13 21:44:15,374 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 429 [2021-06-13 21:44:16,323 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 283 [2021-06-13 21:44:16,514 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 342 DAG size of output: 309 [2021-06-13 21:44:17,413 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 270 [2021-06-13 21:44:17,572 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 296 [2021-06-13 21:44:17,953 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 492 [2021-06-13 21:44:18,487 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 712 DAG size of output: 624 [2021-06-13 21:44:19,253 WARN L205 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 932 DAG size of output: 814 [2021-06-13 21:44:20,495 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1338 DAG size of output: 1058 [2021-06-13 21:44:22,209 WARN L205 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 1723 DAG size of output: 1396 [2021-06-13 21:44:22,911 WARN L205 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 828 [2021-06-13 21:44:23,518 WARN L205 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 621 DAG size of output: 766 [2021-06-13 21:44:23,901 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 616 DAG size of output: 639 [2021-06-13 21:44:24,014 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 332 [2021-06-13 21:44:25,708 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 248 [2021-06-13 21:44:25,864 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 500 DAG size of output: 212 [2021-06-13 21:44:26,163 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 388 [2021-06-13 21:44:26,785 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 707 [2021-06-13 21:44:27,774 WARN L205 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 1357 DAG size of output: 863 [2021-06-13 21:44:29,144 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1729 DAG size of output: 1197 [2021-06-13 21:44:32,562 WARN L205 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 2363 DAG size of output: 1672 [2021-06-13 21:44:36,497 WARN L205 SmtUtils]: Spent 3.93 s on a formula simplification. DAG size of input: 2424 DAG size of output: 1716 [2021-06-13 21:44:42,105 WARN L205 SmtUtils]: Spent 5.60 s on a formula simplification. DAG size of input: 2831 DAG size of output: 1844 [2021-06-13 21:44:53,325 WARN L205 SmtUtils]: Spent 11.21 s on a formula simplification. DAG size of input: 5382 DAG size of output: 3237 [2021-06-13 21:44:54,588 WARN L205 SmtUtils]: Spent 943.00 ms on a formula simplification. DAG size of input: 707 DAG size of output: 1000 [2021-06-13 21:44:55,163 WARN L205 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 687 DAG size of output: 712 [2021-06-13 21:44:55,942 WARN L205 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 683 DAG size of output: 877 [2021-06-13 21:44:56,441 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 729 [2021-06-13 21:44:57,267 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 262 [2021-06-13 21:44:57,468 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 300 [2021-06-13 21:44:57,689 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 374 [2021-06-13 21:44:58,563 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 229 [2021-06-13 21:44:59,392 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 449 DAG size of output: 344 [2021-06-13 21:45:00,325 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 334 [2021-06-13 21:45:01,445 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 369 [2021-06-13 21:45:01,946 WARN L205 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 560 [2021-06-13 21:45:02,749 WARN L205 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 902 DAG size of output: 726 [2021-06-13 21:45:03,728 WARN L205 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 962 DAG size of output: 768 [2021-06-13 21:45:04,965 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1071 DAG size of output: 879 [2021-06-13 21:45:06,276 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1304 DAG size of output: 904 [2021-06-13 21:45:08,227 WARN L205 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 1744 DAG size of output: 1304 [2021-06-13 21:45:10,862 WARN L205 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 2015 DAG size of output: 1655 [2021-06-13 21:45:11,697 WARN L205 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 685 DAG size of output: 879 [2021-06-13 21:45:12,071 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 490 [2021-06-13 21:45:12,371 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 440 DAG size of output: 491 [2021-06-13 21:45:13,715 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 260 [2021-06-13 21:45:14,603 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 289 [2021-06-13 21:45:14,872 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 317 [2021-06-13 21:45:15,273 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 433 [2021-06-13 21:45:16,004 WARN L205 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 821 DAG size of output: 666 [2021-06-13 21:45:17,066 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 945 DAG size of output: 803 [2021-06-13 21:45:17,251 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 354 [2021-06-13 21:45:17,940 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 338 [2021-06-13 21:45:18,123 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 377 [2021-06-13 21:45:18,409 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 515 DAG size of output: 443 [2021-06-13 21:45:19,688 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1314 DAG size of output: 1007 [2021-06-13 21:45:21,585 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 1586 DAG size of output: 1355 [2021-06-13 21:45:26,514 WARN L205 SmtUtils]: Spent 4.92 s on a formula simplification. DAG size of input: 2617 DAG size of output: 2064 [2021-06-13 21:45:33,281 WARN L205 SmtUtils]: Spent 6.76 s on a formula simplification. DAG size of input: 2989 DAG size of output: 2220 [2021-06-13 21:45:40,888 WARN L205 SmtUtils]: Spent 7.59 s on a formula simplification. DAG size of input: 3049 DAG size of output: 2305 [2021-06-13 21:45:41,557 WARN L205 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 573 [2021-06-13 21:45:42,325 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 378 DAG size of output: 296 [2021-06-13 21:45:42,499 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 358 [2021-06-13 21:45:43,211 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 451 [2021-06-13 21:45:44,157 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 215 [2021-06-13 21:45:44,323 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 254 [2021-06-13 21:45:44,545 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 348 [2021-06-13 21:45:44,851 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 399 [2021-06-13 21:45:45,232 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 482 DAG size of output: 425 [2021-06-13 21:45:45,695 WARN L205 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 485 [2021-06-13 21:45:46,246 WARN L205 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 521 [2021-06-13 21:45:47,517 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 328 [2021-06-13 21:45:47,769 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 369 [2021-06-13 21:45:48,107 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 394 [2021-06-13 21:45:48,675 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 469 DAG size of output: 433 [2021-06-13 21:45:49,213 WARN L205 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 517 [2021-06-13 21:45:49,877 WARN L205 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 580 [2021-06-13 21:45:51,223 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 978 DAG size of output: 863 [2021-06-13 21:45:52,139 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 202 [2021-06-13 21:45:52,309 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 256 [2021-06-13 21:45:52,564 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 425 DAG size of output: 384 [2021-06-13 21:45:52,901 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 484 DAG size of output: 442 [2021-06-13 21:45:53,093 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 292 [2021-06-13 21:45:53,739 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 328 [2021-06-13 21:45:53,966 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 391 [2021-06-13 21:45:54,268 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 496 DAG size of output: 450 [2021-06-13 21:45:54,985 WARN L205 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 702 DAG size of output: 639 [2021-06-13 21:45:56,073 WARN L205 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 800 DAG size of output: 715 [2021-06-13 21:45:58,575 WARN L205 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 1872 DAG size of output: 1482 [2021-06-13 21:46:01,849 WARN L205 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 2070 DAG size of output: 1568 [2021-06-13 21:46:01,987 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 361 [2021-06-13 21:46:02,619 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 344 [2021-06-13 21:46:02,807 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 367 [2021-06-13 21:46:03,417 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 246 [2021-06-13 21:46:03,771 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 486 [2021-06-13 21:46:04,822 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 243 [2021-06-13 21:46:04,965 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 266 [2021-06-13 21:46:05,167 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 324 [2021-06-13 21:46:05,456 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 525 DAG size of output: 457 [2021-06-13 21:46:05,864 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 599 [2021-06-13 21:46:06,693 WARN L205 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 870 DAG size of output: 817 [2021-06-13 21:46:07,827 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 1006 DAG size of output: 867 [2021-06-13 21:46:09,007 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 388 [2021-06-13 21:46:09,225 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 406 [2021-06-13 21:46:09,500 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 528 DAG size of output: 422 [2021-06-13 21:46:09,856 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 470 [2021-06-13 21:46:11,543 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 1433 DAG size of output: 1082 [2021-06-13 21:46:16,537 WARN L205 SmtUtils]: Spent 4.99 s on a formula simplification. DAG size of input: 2994 DAG size of output: 2129 [2021-06-13 21:46:22,204 WARN L205 SmtUtils]: Spent 5.65 s on a formula simplification. DAG size of input: 3038 DAG size of output: 2179 [2021-06-13 21:46:36,256 WARN L205 SmtUtils]: Spent 14.04 s on a formula simplification. DAG size of input: 5719 DAG size of output: 3928 [2021-06-13 21:47:03,372 WARN L205 SmtUtils]: Spent 27.09 s on a formula simplification. DAG size of input: 8989 DAG size of output: 5710 [2021-06-13 21:47:04,384 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 329 [2021-06-13 21:47:04,568 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 340 [2021-06-13 21:47:34,820 WARN L205 SmtUtils]: Spent 30.24 s on a formula simplification. DAG size of input: 9287 DAG size of output: 5929 [2021-06-13 21:48:10,779 WARN L205 SmtUtils]: Spent 35.92 s on a formula simplification. DAG size of input: 10982 DAG size of output: 7649 [2021-06-13 21:48:11,814 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 295 [2021-06-13 21:48:12,005 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 410 [2021-06-13 21:48:12,230 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 540 DAG size of output: 416 [2021-06-13 21:48:48,696 WARN L205 SmtUtils]: Spent 36.45 s on a formula simplification. DAG size of input: 11394 DAG size of output: 7943 [2021-06-13 21:49:25,934 WARN L205 SmtUtils]: Spent 37.19 s on a formula simplification. DAG size of input: 11649 DAG size of output: 8097 [2021-06-13 21:50:10,087 WARN L205 SmtUtils]: Spent 44.10 s on a formula simplification. DAG size of input: 12976 DAG size of output: 9218 [2021-06-13 21:50:13,510 WARN L205 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 1243 DAG size of output: 1636 [2021-06-13 21:50:13,661 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 1238 DAG size of output: 1238 [2021-06-13 21:50:15,041 WARN L205 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 1217 DAG size of output: 1216 [2021-06-13 21:50:15,657 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 240 [2021-06-13 21:50:18,458 WARN L205 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 1215 DAG size of output: 1779 [2021-06-13 21:50:18,609 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 1093 DAG size of output: 1093 [2021-06-13 21:50:18,742 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 1052 DAG size of output: 1052 [2021-06-13 21:50:19,786 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 686 DAG size of output: 991 [2021-06-13 21:50:20,459 WARN L205 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 682 DAG size of output: 739 [2021-06-13 21:50:21,352 WARN L205 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 766 [2021-06-13 21:50:22,084 WARN L205 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 676 DAG size of output: 791 [2021-06-13 21:50:22,415 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 441 [2021-06-13 21:50:23,091 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 258 [2021-06-13 21:50:23,261 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 291 [2021-06-13 21:50:23,625 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 348 [2021-06-13 21:50:23,957 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 453 [2021-06-13 21:50:24,357 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 477 [2021-06-13 21:50:25,868 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 543 DAG size of output: 417 [2021-06-13 21:50:26,174 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 435 [2021-06-13 21:50:26,945 WARN L205 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 758 [2021-06-13 21:50:27,948 WARN L205 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 1152 DAG size of output: 843 [2021-06-13 21:50:29,321 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1015 [2021-06-13 21:50:30,200 WARN L205 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 765 [2021-06-13 21:50:31,242 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 675 DAG size of output: 790 [2021-06-13 21:50:31,531 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 428 [2021-06-13 21:50:32,396 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 501 DAG size of output: 391 [2021-06-13 21:50:32,736 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 464 [2021-06-13 21:50:32,975 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 267 [2021-06-13 21:50:33,584 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 234 [2021-06-13 21:50:33,759 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 259 [2021-06-13 21:50:34,541 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 265 [2021-06-13 21:50:34,724 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 290 [2021-06-13 21:50:35,106 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 384 [2021-06-13 21:50:35,983 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 261 [2021-06-13 21:50:36,471 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 319 [2021-06-13 21:50:36,741 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 344 [2021-06-13 21:50:37,498 WARN L205 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 516 [2021-06-13 21:50:38,473 WARN L205 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 592 DAG size of output: 578 [2021-06-13 21:50:39,720 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 819 DAG size of output: 697 [2021-06-13 21:50:41,363 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 1184 DAG size of output: 905 [2021-06-13 21:50:43,474 WARN L205 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 1312 DAG size of output: 996 [2021-06-13 21:50:46,085 WARN L205 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 1416 DAG size of output: 1170 [2021-06-13 21:50:50,457 WARN L205 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 1833 DAG size of output: 1517 [2021-06-13 21:50:56,362 WARN L205 SmtUtils]: Spent 5.90 s on a formula simplification. DAG size of input: 2174 DAG size of output: 1614 [2021-06-13 21:50:56,748 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 409 DAG size of output: 546 [2021-06-13 21:50:56,933 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 384 DAG size of output: 391 [2021-06-13 21:50:57,130 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 417 [2021-06-13 21:50:57,454 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 455 [2021-06-13 21:50:58,917 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 216 [2021-06-13 21:50:59,079 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 246 [2021-06-13 21:50:59,315 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 330 [2021-06-13 21:50:59,684 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 656 DAG size of output: 454 [2021-06-13 21:51:00,199 WARN L205 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 836 DAG size of output: 572 [2021-06-13 21:51:00,472 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 323 [2021-06-13 21:51:01,662 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 162 [2021-06-13 21:51:01,817 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 220 [2021-06-13 21:51:02,015 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 247 [2021-06-13 21:51:02,290 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 486 DAG size of output: 336 [2021-06-13 21:51:02,647 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 614 DAG size of output: 404 [2021-06-13 21:51:03,878 WARN L205 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 847 DAG size of output: 578 [2021-06-13 21:51:05,111 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 933 DAG size of output: 641 [2021-06-13 21:51:06,483 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 960 DAG size of output: 668 [2021-06-13 21:51:08,317 WARN L205 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 1138 DAG size of output: 701 [2021-06-13 21:51:08,542 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 487 [2021-06-13 21:51:08,779 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 380 [2021-06-13 21:51:08,945 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 398 [2021-06-13 21:51:09,117 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 362 [2021-06-13 21:51:10,193 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 219 [2021-06-13 21:51:10,385 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 243 [2021-06-13 21:51:10,625 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 341 [2021-06-13 21:51:10,955 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 613 DAG size of output: 403 [2021-06-13 21:51:11,409 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 697 DAG size of output: 476 [2021-06-13 21:51:11,583 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 380 [2021-06-13 21:51:11,751 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 398 [2021-06-13 21:51:12,816 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 313 [2021-06-13 21:51:12,983 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 333 [2021-06-13 21:51:13,237 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 401 [2021-06-13 21:51:13,609 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 606 DAG size of output: 471 [2021-06-13 21:51:14,548 WARN L205 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 837 DAG size of output: 632 [2021-06-13 21:51:15,791 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1009 DAG size of output: 667 [2021-06-13 21:51:18,900 WARN L205 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 1961 DAG size of output: 1076 [2021-06-13 21:51:28,030 WARN L205 SmtUtils]: Spent 9.12 s on a formula simplification. DAG size of input: 3390 DAG size of output: 2173 [2021-06-13 21:51:38,664 WARN L205 SmtUtils]: Spent 10.28 s on a formula simplification. DAG size of input: 3507 DAG size of output: 2263 [2021-06-13 21:51:50,861 WARN L205 SmtUtils]: Spent 12.18 s on a formula simplification. DAG size of input: 4235 DAG size of output: 2787 [2021-06-13 21:52:03,270 WARN L205 SmtUtils]: Spent 12.39 s on a formula simplification. DAG size of input: 4456 DAG size of output: 2926 [2021-06-13 21:52:15,908 WARN L205 SmtUtils]: Spent 12.62 s on a formula simplification. DAG size of input: 4635 DAG size of output: 3051 [2021-06-13 21:52:30,441 WARN L205 SmtUtils]: Spent 14.51 s on a formula simplification. DAG size of input: 5120 DAG size of output: 3306 [2021-06-13 21:53:30,963 WARN L205 SmtUtils]: Spent 1.01 m on a formula simplification. DAG size of input: 16679 DAG size of output: 11341 [2021-06-13 21:54:37,757 WARN L205 SmtUtils]: Spent 1.11 m on a formula simplification. DAG size of input: 16692 DAG size of output: 11355 [2021-06-13 21:55:44,687 WARN L205 SmtUtils]: Spent 1.11 m on a formula simplification. DAG size of input: 16692 DAG size of output: 11355 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown