/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 20:59:42,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 20:59:42,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 20:59:42,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 20:59:42,124 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-Sleep-NoLbe-Delay.epf [2021-02-19 20:59:42,138 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 20:59:42,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 20:59:42,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 20:59:42,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 20:59:42,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 20:59:42,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 20:59:42,139 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 20:59:42,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 20:59:42,140 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 20:59:42,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 20:59:42,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 20:59:42,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 20:59:42,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 20:59:42,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 20:59:42,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 20:59:42,141 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 20:59:42,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 20:59:42,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 20:59:42,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 20:59:42,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 20:59:42,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 20:59:42,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 20:59:42,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 20:59:42,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 20:59:42,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 20:59:42,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 20:59:42,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 20:59:42,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 20:59:42,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 20:59:42,142 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 20:59:42,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 20:59:42,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 20:59:42,143 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-19 20:59:42,143 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 20:59:42,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 20:59:42,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 20:59:42,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 20:59:42,333 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 20:59:42,334 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 20:59:42,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl [2021-02-19 20:59:42,334 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl' [2021-02-19 20:59:42,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 20:59:42,374 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 20:59:42,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 20:59:42,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 20:59:42,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 20:59:42,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:59:42" (1/1) ... [2021-02-19 20:59:42,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:59:42" (1/1) ... [2021-02-19 20:59:42,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 20:59:42,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 20:59:42,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 20:59:42,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 20:59:42,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:59:42" (1/1) ... [2021-02-19 20:59:42,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:59:42" (1/1) ... [2021-02-19 20:59:42,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:59:42" (1/1) ... [2021-02-19 20:59:42,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:59:42" (1/1) ... [2021-02-19 20:59:42,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:59:42" (1/1) ... [2021-02-19 20:59:42,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:59:42" (1/1) ... [2021-02-19 20:59:42,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:59:42" (1/1) ... [2021-02-19 20:59:42,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 20:59:42,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 20:59:42,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 20:59:42,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 20:59:42,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:59:42" (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 [2021-02-19 20:59:42,476 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 20:59:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 20:59:42,476 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 20:59:42,476 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 20:59:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 20:59:42,477 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 20:59:42,477 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 20:59:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 20:59:42,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 20:59:42,478 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 20:59:42,738 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 20:59:42,738 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-19 20:59:42,738 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-02-19 20:59:42,739 INFO L202 PluginConnector]: Adding new model unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 08:59:42 BoogieIcfgContainer [2021-02-19 20:59:42,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 20:59:42,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 20:59:42,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 20:59:42,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 20:59:42,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:59:42" (1/2) ... [2021-02-19 20:59:42,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217f4a61 and model type unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 08:59:42, skipping insertion in model container [2021-02-19 20:59:42,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 08:59:42" (2/2) ... [2021-02-19 20:59:42,744 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.bpl [2021-02-19 20:59:42,747 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 20:59:42,747 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 20:59:42,750 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 20:59:42,751 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 20:59:42,767 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-02-19 20:59:42,777 INFO L253 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 [2021-02-19 20:59:42,796 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 20:59:42,796 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 20:59:42,796 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 20:59:42,796 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 20:59:42,797 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 20:59:42,797 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 20:59:42,797 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 20:59:42,797 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 20:59:42,825 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:42,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:42,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1298021158, now seen corresponding path program 1 times [2021-02-19 20:59:42,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:42,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532980690] [2021-02-19 20:59:42,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:42,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:42,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532980690] [2021-02-19 20:59:42,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 20:59:42,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 20:59:42,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152678947] [2021-02-19 20:59:42,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 20:59:42,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:42,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 20:59:42,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 20:59:42,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:42,981 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:42,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-02-19 20:59:42,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:43,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:43,073 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 20:59:43,073 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:43,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:43,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1876900072, now seen corresponding path program 1 times [2021-02-19 20:59:43,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:43,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71898655] [2021-02-19 20:59:43,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:43,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:43,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71898655] [2021-02-19 20:59:43,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39466004] [2021-02-19 20:59:43,258 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 [2021-02-19 20:59:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:43,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 16 conjunts are in the unsatisfiable core [2021-02-19 20:59:43,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:43,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-02-19 20:59:43,422 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:43,423 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:43,424 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:43,424 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-02-19 20:59:43,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:43,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:43,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-02-19 20:59:43,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753702673] [2021-02-19 20:59:43,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 20:59:43,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:43,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 20:59:43,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-02-19 20:59:43,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:43,442 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:43,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:59:43,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:43,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:43,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:43,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:43,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:43,696 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:43,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:43,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1515210394, now seen corresponding path program 2 times [2021-02-19 20:59:43,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:43,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730353259] [2021-02-19 20:59:43,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:43,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:43,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730353259] [2021-02-19 20:59:43,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826838703] [2021-02-19 20:59:43,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:43,879 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 20:59:43,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:43,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-02-19 20:59:43,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:44,001 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:44,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 18 [2021-02-19 20:59:44,004 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:44,006 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:44,006 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:44,006 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:3 [2021-02-19 20:59:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:44,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:44,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-02-19 20:59:44,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159008709] [2021-02-19 20:59:44,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-19 20:59:44,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:44,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-19 20:59:44,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-02-19 20:59:44,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:44,018 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:44,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 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) [2021-02-19 20:59:44,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:44,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:44,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:44,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:44,283 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:44,284 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:44,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:44,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1107235032, now seen corresponding path program 3 times [2021-02-19 20:59:44,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:44,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170913647] [2021-02-19 20:59:44,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:44,363 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:44,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170913647] [2021-02-19 20:59:44,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573504739] [2021-02-19 20:59:44,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:44,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-02-19 20:59:44,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:44,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 19 conjunts are in the unsatisfiable core [2021-02-19 20:59:44,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:44,624 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:44,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-02-19 20:59:44,643 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:44,647 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:44,648 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:44,648 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:3 [2021-02-19 20:59:44,658 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:44,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:44,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-02-19 20:59:44,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775652301] [2021-02-19 20:59:44,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-19 20:59:44,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:44,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-19 20:59:44,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-02-19 20:59:44,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:44,659 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:44,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 states have internal predecessors, (21), 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) [2021-02-19 20:59:44,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:44,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:44,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:44,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:44,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:44,927 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:44,927 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:44,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:44,928 INFO L82 PathProgramCache]: Analyzing trace with hash -798664614, now seen corresponding path program 4 times [2021-02-19 20:59:44,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:44,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115079465] [2021-02-19 20:59:44,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:44,966 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:44,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115079465] [2021-02-19 20:59:44,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548824614] [2021-02-19 20:59:44,966 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:44,994 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 20:59:44,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:44,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2021-02-19 20:59:44,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:45,040 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:45,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:45,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-02-19 20:59:45,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408460961] [2021-02-19 20:59:45,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 20:59:45,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:45,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 20:59:45,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-02-19 20:59:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:45,042 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:45,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:59:45,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:45,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:45,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:45,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:45,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:45,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:45,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:45,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:45,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:45,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:45,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-02-19 20:59:45,294 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:45,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:45,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1836815933, now seen corresponding path program 1 times [2021-02-19 20:59:45,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:45,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981054324] [2021-02-19 20:59:45,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:45,377 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:45,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981054324] [2021-02-19 20:59:45,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604366731] [2021-02-19 20:59:45,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-02-19 20:59:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:45,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 26 conjunts are in the unsatisfiable core [2021-02-19 20:59:45,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:45,626 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:45,626 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 [2021-02-19 20:59:45,660 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:45,661 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:45,662 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:45,662 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-02-19 20:59:45,668 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:45,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:45,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-02-19 20:59:45,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518521914] [2021-02-19 20:59:45,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-19 20:59:45,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:45,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-19 20:59:45,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-02-19 20:59:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:45,669 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:45,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 16 states have internal predecessors, (25), 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) [2021-02-19 20:59:45,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:45,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:45,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:45,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:45,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:45,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:45,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:45,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:45,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:45,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:45,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:45,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:45,993 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:45,994 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:45,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:45,994 INFO L82 PathProgramCache]: Analyzing trace with hash 2020244207, now seen corresponding path program 2 times [2021-02-19 20:59:45,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:45,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477794738] [2021-02-19 20:59:45,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:46,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477794738] [2021-02-19 20:59:46,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72670815] [2021-02-19 20:59:46,089 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-02-19 20:59:46,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 20:59:46,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:46,121 WARN L261 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 36 conjunts are in the unsatisfiable core [2021-02-19 20:59:46,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:46,303 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:46,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 27 treesize of output 99 [2021-02-19 20:59:46,391 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:46,393 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:46,393 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:46,393 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:3 [2021-02-19 20:59:46,399 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:46,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:46,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-02-19 20:59:46,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235923699] [2021-02-19 20:59:46,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-19 20:59:46,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:46,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-19 20:59:46,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-02-19 20:59:46,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:46,402 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:46,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 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) [2021-02-19 20:59:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:46,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:46,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:46,726 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:46,727 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:46,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:46,727 INFO L82 PathProgramCache]: Analyzing trace with hash -883413891, now seen corresponding path program 3 times [2021-02-19 20:59:46,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:46,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946168127] [2021-02-19 20:59:46,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:46,867 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:46,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946168127] [2021-02-19 20:59:46,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512454200] [2021-02-19 20:59:46,867 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 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 [2021-02-19 20:59:46,886 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-02-19 20:59:46,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:46,887 WARN L261 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 40 conjunts are in the unsatisfiable core [2021-02-19 20:59:46,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:47,141 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:47,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 31 treesize of output 142 [2021-02-19 20:59:47,304 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:47,305 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:47,306 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:47,306 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:3 [2021-02-19 20:59:47,312 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:47,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:47,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-02-19 20:59:47,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347557601] [2021-02-19 20:59:47,313 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-02-19 20:59:47,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:47,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-02-19 20:59:47,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2021-02-19 20:59:47,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:47,313 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:47,313 INFO L481 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) [2021-02-19 20:59:47,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:47,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:47,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:47,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:47,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:47,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:47,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:47,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:47,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:47,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:47,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:47,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:47,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:47,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:47,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:47,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:47,684 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-02-19 20:59:47,684 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:47,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:47,684 INFO L82 PathProgramCache]: Analyzing trace with hash -702501713, now seen corresponding path program 4 times [2021-02-19 20:59:47,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:47,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680049243] [2021-02-19 20:59:47,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:47,807 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:47,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680049243] [2021-02-19 20:59:47,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718350225] [2021-02-19 20:59:47,807 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 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 [2021-02-19 20:59:47,830 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 20:59:47,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:47,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 34 conjunts are in the unsatisfiable core [2021-02-19 20:59:47,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:48,098 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:48,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 35 treesize of output 193 [2021-02-19 20:59:48,340 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:48,341 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:48,342 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:48,342 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:3 [2021-02-19 20:59:48,347 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:48,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:48,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-02-19 20:59:48,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546937778] [2021-02-19 20:59:48,351 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-02-19 20:59:48,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:48,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-02-19 20:59:48,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-02-19 20:59:48,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:48,352 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:48,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 20 states have internal predecessors, (31), 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) [2021-02-19 20:59:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:48,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:48,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:48,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:48,718 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-02-19 20:59:48,718 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:48,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:48,718 INFO L82 PathProgramCache]: Analyzing trace with hash 610808509, now seen corresponding path program 5 times [2021-02-19 20:59:48,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:48,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738011341] [2021-02-19 20:59:48,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:48,779 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:48,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738011341] [2021-02-19 20:59:48,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125759023] [2021-02-19 20:59:48,779 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-02-19 20:59:48,803 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-02-19 20:59:48,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:48,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2021-02-19 20:59:48,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:48,844 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 28 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:48,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:48,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-02-19 20:59:48,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088927387] [2021-02-19 20:59:48,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-19 20:59:48,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:48,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-19 20:59:48,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-02-19 20:59:48,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:48,847 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:48,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 12 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) [2021-02-19 20:59:48,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:48,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:48,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:48,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:48,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:48,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:48,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:48,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:48,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:48,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:48,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 20:59:49,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable202 [2021-02-19 20:59:49,145 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:49,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:49,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1714157510, now seen corresponding path program 6 times [2021-02-19 20:59:49,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:49,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190450050] [2021-02-19 20:59:49,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:49,301 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:49,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190450050] [2021-02-19 20:59:49,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82123780] [2021-02-19 20:59:49,301 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-02-19 20:59:49,334 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-02-19 20:59:49,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:49,335 WARN L261 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 41 conjunts are in the unsatisfiable core [2021-02-19 20:59:49,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:49,738 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:49,738 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 [2021-02-19 20:59:50,376 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:50,377 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:50,377 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:50,377 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-02-19 20:59:50,384 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:50,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:50,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-02-19 20:59:50,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840650018] [2021-02-19 20:59:50,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-19 20:59:50,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:50,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-19 20:59:50,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2021-02-19 20:59:50,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:50,385 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:50,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:59:50,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:50,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:50,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:50,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:50,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:50,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:50,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:50,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:50,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:50,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 20:59:50,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:50,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:50,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 20:59:50,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 20:59:50,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable203 [2021-02-19 20:59:50,894 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:50,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:50,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1951548104, now seen corresponding path program 7 times [2021-02-19 20:59:50,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:50,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404461717] [2021-02-19 20:59:50,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:51,084 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:51,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404461717] [2021-02-19 20:59:51,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44974278] [2021-02-19 20:59:51,084 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 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 [2021-02-19 20:59:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:51,106 WARN L261 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 56 conjunts are in the unsatisfiable core [2021-02-19 20:59:51,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:51,567 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-02-19 20:59:51,568 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:51,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 36 case distinctions, treesize of input 43 treesize of output 319 [2021-02-19 20:59:53,007 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:53,008 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:53,009 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:53,009 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:3 [2021-02-19 20:59:53,015 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:53,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:53,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-02-19 20:59:53,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920248155] [2021-02-19 20:59:53,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-02-19 20:59:53,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:53,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-02-19 20:59:53,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=742, Unknown=0, NotChecked=0, Total=812 [2021-02-19 20:59:53,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:53,016 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:53,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 28 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) [2021-02-19 20:59:53,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:53,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:53,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:53,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:53,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:53,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:53,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:53,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:53,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:53,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 20:59:53,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 20:59:53,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 20:59:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 20:59:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 20:59:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 20:59:53,454 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:53,455 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:53,455 INFO L82 PathProgramCache]: Analyzing trace with hash -375694854, now seen corresponding path program 8 times [2021-02-19 20:59:53,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:53,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925762296] [2021-02-19 20:59:53,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:53,667 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:53,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925762296] [2021-02-19 20:59:53,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231657052] [2021-02-19 20:59:53,667 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 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 [2021-02-19 20:59:53,702 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 20:59:53,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:53,703 WARN L261 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 60 conjunts are in the unsatisfiable core [2021-02-19 20:59:53,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:54,250 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-02-19 20:59:54,251 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:54,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 19 new quantified variables, introduced 45 case distinctions, treesize of input 47 treesize of output 394 [2021-02-19 20:59:57,956 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1085 DAG size of output: 603 [2021-02-19 20:59:58,097 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 1478 DAG size of output: 701 [2021-02-19 20:59:58,231 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 1478 DAG size of output: 701 [2021-02-19 20:59:58,373 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 1483 DAG size of output: 698 [2021-02-19 20:59:58,520 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 700 DAG size of output: 888 [2021-02-19 21:00:01,945 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 2257 DAG size of output: 1208 [2021-02-19 21:00:02,112 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 2257 DAG size of output: 1208 [2021-02-19 21:00:02,272 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 2259 DAG size of output: 1208 [2021-02-19 21:00:02,867 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:00:02,869 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:00:02,869 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:00:02,869 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:3 [2021-02-19 21:00:02,875 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:00:02,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:00:02,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-02-19 21:00:02,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455802673] [2021-02-19 21:00:02,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-19 21:00:02,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:00:02,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-19 21:00:02,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=855, Unknown=0, NotChecked=0, Total=930 [2021-02-19 21:00:02,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:00:02,876 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:00:02,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 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) [2021-02-19 21:00:02,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:00:02,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:00:02,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:00:02,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:00:02,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:00:02,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:00:02,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:00:02,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:00:02,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:00:02,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:00:02,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:00:02,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:00:02,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:00:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:00:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:00:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:00:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:00:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:00:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:00:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:00:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:00:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:00:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:00:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:00:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:00:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:00:03,413 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable977 [2021-02-19 21:00:03,413 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:00:03,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:00:03,413 INFO L82 PathProgramCache]: Analyzing trace with hash 494217480, now seen corresponding path program 9 times [2021-02-19 21:00:03,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:00:03,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178602782] [2021-02-19 21:00:03,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:00:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:00:03,583 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:00:03,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178602782] [2021-02-19 21:00:03,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948292963] [2021-02-19 21:00:03,584 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 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 [2021-02-19 21:00:03,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-02-19 21:00:03,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:00:03,609 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 49 conjunts are in the unsatisfiable core [2021-02-19 21:00:03,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:00:04,200 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2021-02-19 21:00:04,200 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:00:04,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 21 new quantified variables, introduced 55 case distinctions, treesize of input 51 treesize of output 477 [2021-02-19 21:00:09,075 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1046 DAG size of output: 420 [2021-02-19 21:00:11,314 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 1011 DAG size of output: 681 [2021-02-19 21:00:13,046 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 849 DAG size of output: 705 [2021-02-19 21:00:13,300 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 1470 DAG size of output: 1188 [2021-02-19 21:00:13,563 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 1619 DAG size of output: 1227 [2021-02-19 21:00:13,907 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 2285 DAG size of output: 1225 [2021-02-19 21:00:14,308 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 2817 DAG size of output: 1738 [2021-02-19 21:00:16,058 WARN L202 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 3264 DAG size of output: 2055 [2021-02-19 21:00:16,593 WARN L202 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 3617 DAG size of output: 2277 [2021-02-19 21:00:18,807 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 1039 DAG size of output: 765 [2021-02-19 21:00:20,504 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 775 [2021-02-19 21:00:20,746 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 1491 DAG size of output: 1304 [2021-02-19 21:00:23,137 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 963 DAG size of output: 449 [2021-02-19 21:00:23,492 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 2089 DAG size of output: 1539 [2021-02-19 21:00:23,888 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 2213 DAG size of output: 1647 [2021-02-19 21:00:24,773 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 2674 DAG size of output: 1767 [2021-02-19 21:00:25,262 WARN L202 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 3209 DAG size of output: 2284 [2021-02-19 21:00:25,801 WARN L202 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 3555 DAG size of output: 2587 [2021-02-19 21:00:28,380 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 763 [2021-02-19 21:00:28,521 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 1077 DAG size of output: 756 [2021-02-19 21:00:28,680 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 1098 DAG size of output: 774 [2021-02-19 21:00:29,390 WARN L202 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 4497 DAG size of output: 3222 [2021-02-19 21:00:30,654 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 6099 DAG size of output: 4037 [2021-02-19 21:00:32,016 WARN L202 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 6527 DAG size of output: 4178 [2021-02-19 21:00:34,675 WARN L202 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 7214 DAG size of output: 4671 [2021-02-19 21:00:36,259 WARN L202 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 7644 DAG size of output: 5009 [2021-02-19 21:00:37,830 WARN L202 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 7644 DAG size of output: 5009 [2021-02-19 21:00:39,505 WARN L202 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 7657 DAG size of output: 5022 [2021-02-19 21:00:41,460 WARN L202 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 5024 DAG size of output: 6951 [2021-02-19 21:00:43,339 WARN L202 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 4225 DAG size of output: 5817 [2021-02-19 21:00:44,413 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 3936 DAG size of output: 3639 [2021-02-19 21:00:46,166 WARN L202 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 3441 DAG size of output: 4915 [2021-02-19 21:00:47,190 WARN L202 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 3369 DAG size of output: 3400 [2021-02-19 21:00:48,977 WARN L202 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 3164 DAG size of output: 4663 [2021-02-19 21:00:49,772 WARN L202 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 2817 DAG size of output: 2759 [2021-02-19 21:00:51,559 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 2568 DAG size of output: 3483 [2021-02-19 21:00:52,687 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 2279 DAG size of output: 3278 [2021-02-19 21:00:53,068 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 1929 DAG size of output: 1913 [2021-02-19 21:00:53,400 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 1754 DAG size of output: 1754 [2021-02-19 21:00:53,721 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 1642 DAG size of output: 1642 [2021-02-19 21:00:53,893 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 1347 DAG size of output: 1347 [2021-02-19 21:00:54,588 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 935 [2021-02-19 21:00:54,805 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 818 [2021-02-19 21:00:55,982 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2021-02-19 21:00:56,093 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 877 DAG size of output: 877 [2021-02-19 21:00:57,403 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 1715 DAG size of output: 767 [2021-02-19 21:00:57,870 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 2020 DAG size of output: 916 [2021-02-19 21:00:58,038 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 2176 DAG size of output: 1030 [2021-02-19 21:00:58,595 WARN L202 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 2193 DAG size of output: 2186 [2021-02-19 21:00:59,111 WARN L202 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 2032 DAG size of output: 2032 [2021-02-19 21:00:59,737 WARN L202 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 1930 DAG size of output: 1930 [2021-02-19 21:00:59,943 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 1241 DAG size of output: 1241 [2021-02-19 21:01:00,137 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 1080 DAG size of output: 1080 [2021-02-19 21:01:00,289 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 844 DAG size of output: 844 [2021-02-19 21:01:00,408 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 674 DAG size of output: 674 [2021-02-19 21:01:01,977 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 1545 DAG size of output: 1545 [2021-02-19 21:01:02,188 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2021-02-19 21:01:02,484 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 1005 DAG size of output: 1005 [2021-02-19 21:01:02,782 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 835 [2021-02-19 21:01:02,924 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 814 DAG size of output: 814 [2021-02-19 21:01:03,046 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 769 [2021-02-19 21:01:04,565 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 1954 DAG size of output: 803 [2021-02-19 21:01:04,727 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 2119 DAG size of output: 870 [2021-02-19 21:01:04,915 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 2270 DAG size of output: 981 [2021-02-19 21:01:05,264 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 3632 DAG size of output: 1557 [2021-02-19 21:01:05,692 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 1827 DAG size of output: 1803 [2021-02-19 21:01:06,405 WARN L202 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 1697 DAG size of output: 2477 [2021-02-19 21:01:06,625 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 1218 DAG size of output: 1186 [2021-02-19 21:01:07,780 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 980 DAG size of output: 980 [2021-02-19 21:01:09,530 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 1632 DAG size of output: 1621 [2021-02-19 21:01:09,697 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 1085 DAG size of output: 1085 [2021-02-19 21:01:09,971 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 955 DAG size of output: 955 [2021-02-19 21:01:10,109 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 775 DAG size of output: 775 [2021-02-19 21:01:10,217 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 640 DAG size of output: 640 [2021-02-19 21:01:11,443 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 1308 DAG size of output: 1304 [2021-02-19 21:01:11,609 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 1001 DAG size of output: 1001 [2021-02-19 21:01:11,850 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 885 DAG size of output: 885 [2021-02-19 21:01:12,098 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 750 DAG size of output: 750 [2021-02-19 21:01:12,228 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 730 DAG size of output: 730 [2021-02-19 21:01:12,334 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 705 DAG size of output: 705 [2021-02-19 21:01:13,515 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 1579 DAG size of output: 791 [2021-02-19 21:01:13,756 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 2376 DAG size of output: 1159 [2021-02-19 21:01:14,398 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 2677 DAG size of output: 1277 [2021-02-19 21:01:15,034 WARN L202 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 5640 DAG size of output: 2351 [2021-02-19 21:01:15,712 WARN L202 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 5962 DAG size of output: 2552 [2021-02-19 21:01:16,951 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 8298 DAG size of output: 3947 [2021-02-19 21:01:18,779 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1301 DAG size of output: 820 [2021-02-19 21:01:20,148 WARN L202 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 9172 DAG size of output: 4422 [2021-02-19 21:01:21,344 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 10737 DAG size of output: 3616 [2021-02-19 21:01:22,592 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 10966 DAG size of output: 3871 [2021-02-19 21:01:24,011 WARN L202 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 3550 DAG size of output: 4917 [2021-02-19 21:01:24,823 WARN L202 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 3465 DAG size of output: 3191 [2021-02-19 21:01:25,605 WARN L202 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 2997 DAG size of output: 2884 [2021-02-19 21:01:27,812 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1381 DAG size of output: 930 [2021-02-19 21:01:27,968 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 1601 DAG size of output: 1074 [2021-02-19 21:01:29,191 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 2633 DAG size of output: 3806 [2021-02-19 21:01:30,089 WARN L202 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 2350 DAG size of output: 3155 [2021-02-19 21:01:30,525 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 2147 DAG size of output: 2139 [2021-02-19 21:01:31,742 WARN L202 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 1972 DAG size of output: 2870 [2021-02-19 21:01:32,037 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 1715 DAG size of output: 1715 [2021-02-19 21:01:32,297 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 1575 DAG size of output: 1575 [2021-02-19 21:01:32,776 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 1480 DAG size of output: 1480 [2021-02-19 21:01:33,988 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 1182 DAG size of output: 1182 [2021-02-19 21:01:35,815 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 1579 DAG size of output: 787 [2021-02-19 21:01:35,948 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1781 DAG size of output: 919 [2021-02-19 21:01:36,110 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1920 DAG size of output: 1017 [2021-02-19 21:01:36,505 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 1924 DAG size of output: 1918 [2021-02-19 21:01:36,883 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 1783 [2021-02-19 21:01:37,322 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 1697 DAG size of output: 1697 [2021-02-19 21:01:37,468 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1040 DAG size of output: 1040 [2021-02-19 21:01:37,590 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 882 DAG size of output: 882 [2021-02-19 21:01:37,698 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 726 [2021-02-19 21:01:38,959 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 1330 DAG size of output: 1330 [2021-02-19 21:01:39,564 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 1035 [2021-02-19 21:01:39,688 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 886 [2021-02-19 21:01:41,059 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 1748 DAG size of output: 784 [2021-02-19 21:01:41,205 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1833 DAG size of output: 843 [2021-02-19 21:01:41,365 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 1967 DAG size of output: 938 [2021-02-19 21:01:41,687 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 3166 DAG size of output: 1555 [2021-02-19 21:01:42,027 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 3445 DAG size of output: 1732 [2021-02-19 21:01:42,345 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 1603 DAG size of output: 1589 [2021-02-19 21:01:42,617 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 1456 DAG size of output: 1452 [2021-02-19 21:01:43,127 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 1367 DAG size of output: 1367 [2021-02-19 21:01:43,242 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 871 DAG size of output: 871 [2021-02-19 21:01:45,085 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 1081 DAG size of output: 1081 [2021-02-19 21:01:45,194 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 828 DAG size of output: 828 [2021-02-19 21:01:47,459 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 1732 DAG size of output: 1016 [2021-02-19 21:01:47,639 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 1893 DAG size of output: 1094 [2021-02-19 21:01:48,348 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 2173 DAG size of output: 1309 [2021-02-19 21:01:48,924 WARN L202 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 5017 DAG size of output: 2559 [2021-02-19 21:01:49,937 WARN L202 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 7041 DAG size of output: 3929 [2021-02-19 21:01:51,142 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 8301 DAG size of output: 4690 [2021-02-19 21:01:52,426 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 8530 DAG size of output: 4936 [2021-02-19 21:01:53,497 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 10374 DAG size of output: 3975 [2021-02-19 21:01:55,825 WARN L202 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 19095 DAG size of output: 6530 [2021-02-19 21:01:58,367 WARN L202 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 22145 DAG size of output: 6652 [2021-02-19 21:02:00,886 WARN L202 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 22145 DAG size of output: 6652 [2021-02-19 21:02:03,484 WARN L202 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 22154 DAG size of output: 6661 [2021-02-19 21:02:04,785 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 6658 DAG size of output: 6140 [2021-02-19 21:02:05,792 WARN L202 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 6142 DAG size of output: 4499 [2021-02-19 21:02:06,360 WARN L202 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 4127 DAG size of output: 2597 [2021-02-19 21:02:06,768 WARN L202 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 2592 DAG size of output: 2540 [2021-02-19 21:02:07,187 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 1698 DAG size of output: 2252 [2021-02-19 21:02:07,551 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 1634 DAG size of output: 1837 [2021-02-19 21:02:08,916 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 1183 DAG size of output: 777 [2021-02-19 21:02:10,456 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1862 DAG size of output: 882 [2021-02-19 21:02:10,599 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 1868 DAG size of output: 888 [2021-02-19 21:02:10,770 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 2313 DAG size of output: 1037 [2021-02-19 21:02:10,936 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 2313 DAG size of output: 1037 [2021-02-19 21:02:11,242 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 2320 DAG size of output: 1387 [2021-02-19 21:02:12,316 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:02:12,317 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:02:12,317 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:02:12,318 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:3 [2021-02-19 21:02:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:02:12,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:02:12,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-02-19 21:02:12,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158238949] [2021-02-19 21:02:12,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-19 21:02:12,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:02:12,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-19 21:02:12,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-02-19 21:02:12,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:02:12,325 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:02:12,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:02:12,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:02:12,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:02:12,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:02:12,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:02:12,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:02:12,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:02:12,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:02:12,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:12,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:12,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:02:12,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:12,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:02:12,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:12,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:02:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:02:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:02:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:02:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:02:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:02:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:02:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:02:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:02:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:02:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:12,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:12,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2771,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:02:12,879 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:02:12,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:02:12,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1691696058, now seen corresponding path program 10 times [2021-02-19 21:02:12,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:02:12,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735879581] [2021-02-19 21:02:12,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:02:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:02:12,980 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 55 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:02:12,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735879581] [2021-02-19 21:02:12,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113987964] [2021-02-19 21:02:12,980 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-02-19 21:02:13,015 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 21:02:13,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:02:13,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2021-02-19 21:02:13,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:02:13,064 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 66 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:02:13,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:02:13,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-02-19 21:02:13,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936032452] [2021-02-19 21:02:13,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-19 21:02:13,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:02:13,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-19 21:02:13,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2021-02-19 21:02:13,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:02:13,065 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:02:13,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.5) internal successors, (27), 17 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) [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:13,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:02:13,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable18752 [2021-02-19 21:02:13,410 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:02:13,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:02:13,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1728585437, now seen corresponding path program 11 times [2021-02-19 21:02:13,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:02:13,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950654456] [2021-02-19 21:02:13,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:02:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:02:13,640 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:02:13,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950654456] [2021-02-19 21:02:13,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840842370] [2021-02-19 21:02:13,641 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:02:13,664 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-02-19 21:02:13,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:02:13,665 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 56 conjunts are in the unsatisfiable core [2021-02-19 21:02:13,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:02:14,438 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-02-19 21:02:14,438 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:02:14,439 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 [2021-02-19 21:02:16,749 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 1495 DAG size of output: 1211 [2021-02-19 21:02:16,873 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 1495 DAG size of output: 1211 [2021-02-19 21:02:16,996 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 1514 DAG size of output: 1230 [2021-02-19 21:02:17,191 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 1232 DAG size of output: 1717 [2021-02-19 21:02:17,379 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 1177 DAG size of output: 1510 [2021-02-19 21:02:17,603 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 1204 [2021-02-19 21:02:17,751 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 1038 DAG size of output: 1236 [2021-02-19 21:02:19,386 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 668 DAG size of output: 553 [2021-02-19 21:02:19,689 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1003 DAG size of output: 1339 [2021-02-19 21:02:21,648 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1104 DAG size of output: 769 [2021-02-19 21:02:24,824 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 818 DAG size of output: 829 [2021-02-19 21:02:24,957 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 1071 DAG size of output: 856 [2021-02-19 21:02:25,166 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 1525 DAG size of output: 1167 [2021-02-19 21:02:25,523 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 2199 DAG size of output: 1680 [2021-02-19 21:02:25,887 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 2294 DAG size of output: 1772 [2021-02-19 21:02:26,421 WARN L202 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 2794 DAG size of output: 2181 [2021-02-19 21:02:26,968 WARN L202 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 2795 DAG size of output: 2171 [2021-02-19 21:02:29,086 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 898 [2021-02-19 21:02:29,267 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 1165 DAG size of output: 996 [2021-02-19 21:02:30,313 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 1591 DAG size of output: 1311 [2021-02-19 21:02:30,530 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 1594 DAG size of output: 1314 [2021-02-19 21:02:31,223 WARN L202 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 4029 DAG size of output: 2945 [2021-02-19 21:02:32,667 WARN L202 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 4493 DAG size of output: 3243 [2021-02-19 21:02:32,807 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 1110 DAG size of output: 1289 [2021-02-19 21:02:33,034 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1069 DAG size of output: 1287 [2021-02-19 21:02:34,837 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 954 DAG size of output: 983 [2021-02-19 21:02:34,981 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 1031 DAG size of output: 1370 [2021-02-19 21:02:35,129 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 1349 [2021-02-19 21:02:35,290 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 934 DAG size of output: 1225 [2021-02-19 21:02:38,313 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 1479 DAG size of output: 1257 [2021-02-19 21:02:40,120 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 2040 DAG size of output: 1719 [2021-02-19 21:02:40,458 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 2502 DAG size of output: 2129 [2021-02-19 21:02:40,874 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 3048 DAG size of output: 2575 [2021-02-19 21:02:41,357 WARN L202 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 3439 DAG size of output: 3068 [2021-02-19 21:02:41,987 WARN L202 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 4191 DAG size of output: 3792 [2021-02-19 21:02:42,818 WARN L202 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 4415 DAG size of output: 3979 [2021-02-19 21:02:43,593 WARN L202 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 4904 DAG size of output: 4421 [2021-02-19 21:02:44,741 WARN L202 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 5137 DAG size of output: 4614 [2021-02-19 21:02:46,941 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1353 DAG size of output: 981 [2021-02-19 21:02:48,163 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 1858 DAG size of output: 1354 [2021-02-19 21:02:48,397 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 2129 DAG size of output: 1573 [2021-02-19 21:02:48,939 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 2353 DAG size of output: 1744 [2021-02-19 21:02:49,969 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 6896 DAG size of output: 5346 [2021-02-19 21:02:51,782 WARN L202 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 10593 DAG size of output: 7527 [2021-02-19 21:02:52,015 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 1226 DAG size of output: 1612 [2021-02-19 21:02:52,147 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1151 DAG size of output: 1338 [2021-02-19 21:02:52,308 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 1134 DAG size of output: 1358 [2021-02-19 21:02:52,429 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 1129 DAG size of output: 1246 [2021-02-19 21:02:52,604 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 1088 DAG size of output: 1430 [2021-02-19 21:02:52,770 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1081 DAG size of output: 1381 [2021-02-19 21:02:52,930 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 960 DAG size of output: 1234 [2021-02-19 21:02:53,093 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 953 DAG size of output: 1239 [2021-02-19 21:02:56,494 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1292 DAG size of output: 1310 [2021-02-19 21:02:56,653 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 1494 DAG size of output: 1343 [2021-02-19 21:02:56,879 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 1871 DAG size of output: 1621 [2021-02-19 21:02:57,131 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 1890 DAG size of output: 1640 [2021-02-19 21:02:57,401 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 1945 DAG size of output: 1680 [2021-02-19 21:02:57,543 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 785 DAG size of output: 889 [2021-02-19 21:03:00,750 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1173 DAG size of output: 857 [2021-02-19 21:03:01,033 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 1709 DAG size of output: 1372 [2021-02-19 21:03:01,495 WARN L202 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 3161 DAG size of output: 2670 [2021-02-19 21:03:02,039 WARN L202 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 3634 DAG size of output: 3105 [2021-02-19 21:03:02,664 WARN L202 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 4193 DAG size of output: 3539 [2021-02-19 21:03:03,374 WARN L202 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 4712 DAG size of output: 4050 [2021-02-19 21:03:05,917 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 1272 DAG size of output: 1413 [2021-02-19 21:03:06,122 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 1445 DAG size of output: 1584 [2021-02-19 21:03:06,334 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 1621 DAG size of output: 1706 [2021-02-19 21:03:06,574 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 1823 DAG size of output: 1886 [2021-02-19 21:03:07,558 WARN L202 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 6186 DAG size of output: 5607 [2021-02-19 21:03:08,649 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 6778 DAG size of output: 6039 [2021-02-19 21:03:11,543 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 1114 DAG size of output: 936 [2021-02-19 21:03:11,683 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 1246 DAG size of output: 991 [2021-02-19 21:03:11,821 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1393 DAG size of output: 1032 [2021-02-19 21:03:11,992 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 1781 DAG size of output: 1323 [2021-02-19 21:03:12,186 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 2049 DAG size of output: 1480 [2021-02-19 21:03:13,552 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 2631 DAG size of output: 1918 [2021-02-19 21:03:14,050 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 2855 DAG size of output: 2044 [2021-02-19 21:03:14,399 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 2955 DAG size of output: 2138 [2021-02-19 21:03:14,775 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 3247 DAG size of output: 2348 [2021-02-19 21:03:16,162 WARN L202 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 9320 DAG size of output: 7109 [2021-02-19 21:03:16,334 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 1144 DAG size of output: 1285 [2021-02-19 21:03:16,565 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 1091 DAG size of output: 1291 [2021-02-19 21:03:16,673 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1086 DAG size of output: 1231 [2021-02-19 21:03:18,045 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 882 DAG size of output: 834 [2021-02-19 21:03:18,202 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 1083 DAG size of output: 1458 [2021-02-19 21:03:19,853 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 799 DAG size of output: 849 [2021-02-19 21:03:19,960 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1040 DAG size of output: 885 [2021-02-19 21:03:20,912 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 1484 DAG size of output: 1155 [2021-02-19 21:03:21,089 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 1534 DAG size of output: 1205 [2021-02-19 21:03:23,225 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 976 DAG size of output: 973 [2021-02-19 21:03:23,378 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 1117 DAG size of output: 1125 [2021-02-19 21:03:23,550 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 1381 DAG size of output: 1158 [2021-02-19 21:03:25,101 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 1969 DAG size of output: 1612 [2021-02-19 21:03:25,372 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 1990 DAG size of output: 1633 [2021-02-19 21:03:25,847 WARN L202 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 2977 DAG size of output: 2504 [2021-02-19 21:03:26,452 WARN L202 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 3664 DAG size of output: 3170 [2021-02-19 21:03:27,082 WARN L202 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 3665 DAG size of output: 3165 [2021-02-19 21:03:27,934 WARN L202 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 3828 DAG size of output: 3307 [2021-02-19 21:03:30,653 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 1044 DAG size of output: 977 [2021-02-19 21:03:30,793 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1066 DAG size of output: 992 [2021-02-19 21:03:33,766 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 1113 DAG size of output: 1107 [2021-02-19 21:03:33,949 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 1135 DAG size of output: 1110 [2021-02-19 21:03:34,149 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 1175 DAG size of output: 1130 [2021-02-19 21:03:34,488 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 1986 DAG size of output: 1919 [2021-02-19 21:03:34,867 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 2247 DAG size of output: 2053 [2021-02-19 21:03:36,394 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 821 DAG size of output: 676 [2021-02-19 21:03:36,980 WARN L202 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 2959 DAG size of output: 2569 [2021-02-19 21:03:37,475 WARN L202 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 2962 DAG size of output: 2572 [2021-02-19 21:03:38,618 WARN L202 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 6145 DAG size of output: 5049 [2021-02-19 21:03:41,256 WARN L202 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 14298 DAG size of output: 11123 [2021-02-19 21:03:45,706 WARN L202 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 22836 DAG size of output: 16311 [2021-02-19 21:03:50,189 WARN L202 SmtUtils]: Spent 4.38 s on a formula simplification. DAG size of input: 22836 DAG size of output: 16311 [2021-02-19 21:03:55,057 WARN L202 SmtUtils]: Spent 4.80 s on a formula simplification. DAG size of input: 22851 DAG size of output: 16326 [2021-02-19 21:03:58,394 WARN L202 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 16320 DAG size of output: 16017 [2021-02-19 21:04:02,986 WARN L202 SmtUtils]: Spent 4.48 s on a formula simplification. DAG size of input: 16019 DAG size of output: 17458 [2021-02-19 21:04:04,719 WARN L202 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 8798 DAG size of output: 8842 [2021-02-19 21:04:06,858 WARN L202 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 8433 DAG size of output: 10247 [2021-02-19 21:04:08,250 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 8283 DAG size of output: 8210 [2021-02-19 21:04:08,810 WARN L202 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 4000 DAG size of output: 4000 [2021-02-19 21:04:09,126 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 2400 DAG size of output: 2445 [2021-02-19 21:04:09,382 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 2304 DAG size of output: 2184 [2021-02-19 21:04:09,556 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 1597 DAG size of output: 1573 [2021-02-19 21:04:09,729 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 1546 [2021-02-19 21:04:09,842 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 1251 [2021-02-19 21:04:09,954 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 1070 [2021-02-19 21:04:10,079 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 1070 DAG size of output: 1107 [2021-02-19 21:04:13,159 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 931 DAG size of output: 640 [2021-02-19 21:04:13,270 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 932 DAG size of output: 640 [2021-02-19 21:04:13,788 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1071 DAG size of output: 680 [2021-02-19 21:04:13,940 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 1413 DAG size of output: 744 [2021-02-19 21:04:14,103 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 1435 DAG size of output: 757 [2021-02-19 21:04:15,754 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 2011 DAG size of output: 1118 [2021-02-19 21:04:16,029 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 2209 DAG size of output: 1310 [2021-02-19 21:04:16,318 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 1869 DAG size of output: 1860 [2021-02-19 21:04:16,530 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 1672 DAG size of output: 1643 [2021-02-19 21:04:16,767 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 1618 DAG size of output: 1596 [2021-02-19 21:04:16,955 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 1594 DAG size of output: 1589 [2021-02-19 21:04:19,032 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1179 DAG size of output: 791 [2021-02-19 21:04:19,183 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 983 DAG size of output: 1068 [2021-02-19 21:04:19,293 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 978 DAG size of output: 978 [2021-02-19 21:04:21,983 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1038 DAG size of output: 770 [2021-02-19 21:04:22,111 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1234 DAG size of output: 861 [2021-02-19 21:04:22,262 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1378 DAG size of output: 995 [2021-02-19 21:04:22,532 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 2380 DAG size of output: 1565 [2021-02-19 21:04:22,803 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 2381 DAG size of output: 1445 [2021-02-19 21:04:23,108 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 2398 DAG size of output: 1442 [2021-02-19 21:04:23,410 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 2557 DAG size of output: 1533 [2021-02-19 21:04:23,994 WARN L202 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 4463 DAG size of output: 2486 [2021-02-19 21:04:24,577 WARN L202 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 4464 DAG size of output: 2437 [2021-02-19 21:04:25,539 WARN L202 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 6866 DAG size of output: 3926 [2021-02-19 21:04:26,564 WARN L202 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 7307 DAG size of output: 3953 [2021-02-19 21:04:28,749 WARN L202 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 18425 DAG size of output: 8255 [2021-02-19 21:04:30,957 WARN L202 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 18425 DAG size of output: 8255 [2021-02-19 21:04:33,253 WARN L202 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 18430 DAG size of output: 8260 [2021-02-19 21:04:33,908 WARN L202 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 3858 DAG size of output: 3615 [2021-02-19 21:04:34,411 WARN L202 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 3588 DAG size of output: 2953 [2021-02-19 21:04:34,820 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 2008 DAG size of output: 2275 [2021-02-19 21:04:35,149 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 1982 DAG size of output: 2118 [2021-02-19 21:04:35,395 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 1947 DAG size of output: 1853 [2021-02-19 21:04:35,661 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 1825 DAG size of output: 1823 [2021-02-19 21:04:35,811 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1281 DAG size of output: 1281 [2021-02-19 21:04:35,959 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 1261 DAG size of output: 1261 [2021-02-19 21:04:36,098 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 1252 DAG size of output: 1252 [2021-02-19 21:04:36,723 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 730 DAG size of output: 773 [2021-02-19 21:04:38,248 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1899 DAG size of output: 779 [2021-02-19 21:04:38,393 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 2846 DAG size of output: 882 [2021-02-19 21:04:38,565 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 2917 DAG size of output: 883 [2021-02-19 21:04:39,400 WARN L202 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 4647 DAG size of output: 4771 [2021-02-19 21:04:39,871 WARN L202 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 4240 DAG size of output: 2333 [2021-02-19 21:04:40,123 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 1682 DAG size of output: 1686 [2021-02-19 21:04:40,359 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 1624 DAG size of output: 1647 [2021-02-19 21:04:40,579 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 1528 DAG size of output: 1537 [2021-02-19 21:04:40,778 WARN L202 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 1487 DAG size of output: 1537 [2021-02-19 21:04:40,940 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 1468 DAG size of output: 1468 [2021-02-19 21:04:41,059 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 809 DAG size of output: 943 [2021-02-19 21:04:42,213 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 846 DAG size of output: 1149 [2021-02-19 21:04:42,328 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 833 DAG size of output: 831 [2021-02-19 21:04:43,281 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1690 DAG size of output: 727 [2021-02-19 21:04:43,938 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 3424 DAG size of output: 1385 [2021-02-19 21:04:44,296 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 6129 DAG size of output: 2118 [2021-02-19 21:04:44,643 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 6129 DAG size of output: 2118 [2021-02-19 21:04:45,008 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 6134 DAG size of output: 2127 [2021-02-19 21:04:45,273 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 2129 DAG size of output: 1963 [2021-02-19 21:04:45,459 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 1913 DAG size of output: 1900 [2021-02-19 21:04:47,767 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 762 DAG size of output: 906 [2021-02-19 21:04:47,879 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 684 DAG size of output: 814 [2021-02-19 21:04:50,539 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1565 DAG size of output: 702 [2021-02-19 21:04:55,037 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1294 DAG size of output: 858 [2021-02-19 21:04:55,150 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1633 DAG size of output: 858 [2021-02-19 21:04:55,312 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1922 DAG size of output: 965 [2021-02-19 21:04:56,367 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 2577 DAG size of output: 1081 [2021-02-19 21:04:56,619 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 3275 DAG size of output: 1346 [2021-02-19 21:04:57,083 WARN L202 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 5859 DAG size of output: 2418 [2021-02-19 21:04:57,601 WARN L202 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 5945 DAG size of output: 2471 [2021-02-19 21:04:58,102 WARN L202 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 5945 DAG size of output: 2471 [2021-02-19 21:04:58,648 WARN L202 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 5950 DAG size of output: 2476 [2021-02-19 21:04:58,934 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 2476 DAG size of output: 2297 [2021-02-19 21:04:59,239 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 2254 DAG size of output: 1494 [2021-02-19 21:04:59,384 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 963 DAG size of output: 1120 [2021-02-19 21:05:01,024 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1464 DAG size of output: 962 [2021-02-19 21:05:01,216 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 1489 DAG size of output: 984 [2021-02-19 21:05:01,378 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1489 DAG size of output: 984 [2021-02-19 21:05:01,545 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 1491 DAG size of output: 987 [2021-02-19 21:05:01,688 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 989 DAG size of output: 1257 [2021-02-19 21:05:02,307 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:05:02,308 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:05:02,309 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:05:02,309 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:3 [2021-02-19 21:05:02,316 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:05:02,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:05:02,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2021-02-19 21:05:02,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655108514] [2021-02-19 21:05:02,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-02-19 21:05:02,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:05:02,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-02-19 21:05:02,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1241, Unknown=0, NotChecked=0, Total=1332 [2021-02-19 21:05:02,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:05:02,317 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:05:02,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 36 states have internal predecessors, (45), 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) [2021-02-19 21:05:02,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:05:02,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:05:02,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:05:02,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:05:02,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:05:02,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:05:02,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:05:02,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:05:02,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:05:02,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:05:02,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:05:02,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:05:02,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:05:02,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:05:02,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:05:02,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:05:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 21:05:02,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18753,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:05:02,972 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:05:02,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:05:02,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1454263567, now seen corresponding path program 12 times [2021-02-19 21:05:02,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:05:02,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469433670] [2021-02-19 21:05:02,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:05:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:05:03,259 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:05:03,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469433670] [2021-02-19 21:05:03,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821414760] [2021-02-19 21:05:03,259 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:05:03,286 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-02-19 21:05:03,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:05:03,287 WARN L261 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 76 conjunts are in the unsatisfiable core [2021-02-19 21:05:03,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:05:04,192 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 339 [2021-02-19 21:05:04,192 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:05:04,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 25 new quantified variables, introduced 78 case distinctions, treesize of input 59 treesize of output 667 [2021-02-19 21:05:06,148 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 1565 DAG size of output: 1152 [2021-02-19 21:05:08,412 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1954 DAG size of output: 1547 [2021-02-19 21:05:08,573 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 1998 DAG size of output: 1590 [2021-02-19 21:05:08,710 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 2025 DAG size of output: 1617 [2021-02-19 21:05:08,940 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 3337 DAG size of output: 2495 [2021-02-19 21:05:09,177 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 3337 DAG size of output: 2495 [2021-02-19 21:05:09,451 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 3360 DAG size of output: 2518 [2021-02-19 21:05:09,663 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 2509 DAG size of output: 2506 [2021-02-19 21:05:09,894 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 2508 DAG size of output: 2523 [2021-02-19 21:05:10,089 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 2497 DAG size of output: 2494 [2021-02-19 21:05:10,267 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 1589 DAG size of output: 1968 [2021-02-19 21:05:10,394 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 1586 DAG size of output: 1595 [2021-02-19 21:05:10,548 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1583 DAG size of output: 1663 [2021-02-19 21:05:10,773 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 1557 DAG size of output: 1557 [2021-02-19 21:05:14,631 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 2657 DAG size of output: 1450 [2021-02-19 21:05:14,822 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 3267 DAG size of output: 1895 [2021-02-19 21:05:15,022 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 3290 DAG size of output: 1917 [2021-02-19 21:05:15,254 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 3310 DAG size of output: 1936 [2021-02-19 21:05:15,476 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 3445 DAG size of output: 2035 [2021-02-19 21:05:15,708 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 3487 DAG size of output: 2073 [2021-02-19 21:05:15,979 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 3913 DAG size of output: 2323 [2021-02-19 21:05:16,158 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 1154 DAG size of output: 1549 [2021-02-19 21:05:16,636 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 1117 DAG size of output: 1161 [2021-02-19 21:05:18,617 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 2316 DAG size of output: 1394 [2021-02-19 21:05:19,024 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 5749 DAG size of output: 3310 [2021-02-19 21:05:19,487 WARN L202 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 5779 DAG size of output: 3337 [2021-02-19 21:05:19,927 WARN L202 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 5779 DAG size of output: 3337 [2021-02-19 21:05:20,516 WARN L202 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 5791 DAG size of output: 3379 [2021-02-19 21:05:20,954 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 3344 DAG size of output: 3420 [2021-02-19 21:05:21,381 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 3280 DAG size of output: 3293 [2021-02-19 21:05:21,707 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 3216 DAG size of output: 3216 [2021-02-19 21:05:22,107 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 3191 DAG size of output: 3115 [2021-02-19 21:05:22,517 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 3087 DAG size of output: 3174 [2021-02-19 21:05:22,760 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 2011 DAG size of output: 1913 [2021-02-19 21:05:22,910 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 1693 [2021-02-19 21:05:24,650 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 1004 DAG size of output: 1200 [2021-02-19 21:05:27,109 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 2067 DAG size of output: 912 [2021-02-19 21:05:27,290 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 2374 DAG size of output: 1168 [2021-02-19 21:05:27,600 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 3536 DAG size of output: 2226 [2021-02-19 21:05:27,909 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 3594 DAG size of output: 2268 [2021-02-19 21:05:28,260 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 3621 DAG size of output: 2239 [2021-02-19 21:05:28,604 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 3728 DAG size of output: 2298 [2021-02-19 21:05:28,990 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 3943 DAG size of output: 2495 [2021-02-19 21:05:29,421 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 4030 DAG size of output: 2583 [2021-02-19 21:05:29,831 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 4030 DAG size of output: 2583 [2021-02-19 21:05:30,282 WARN L202 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 4035 DAG size of output: 2581 [2021-02-19 21:05:30,723 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 2583 DAG size of output: 2779 [2021-02-19 21:05:31,253 WARN L202 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 2278 DAG size of output: 3164 [2021-02-19 21:05:31,624 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 1697 DAG size of output: 2269 [2021-02-19 21:05:31,861 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 1451 DAG size of output: 1548 [2021-02-19 21:05:32,005 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 1097 DAG size of output: 994 [2021-02-19 21:05:32,425 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 873 DAG size of output: 1198 [2021-02-19 21:05:32,544 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 785 DAG size of output: 999 [2021-02-19 21:05:32,662 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 755 DAG size of output: 1074 [2021-02-19 21:05:35,294 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 1337 DAG size of output: 717 [2021-02-19 21:05:35,421 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 1470 DAG size of output: 809 [2021-02-19 21:05:35,622 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 2186 DAG size of output: 1283 [2021-02-19 21:05:35,811 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 1606 DAG size of output: 1604 [2021-02-19 21:05:35,998 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 1539 DAG size of output: 1539 [2021-02-19 21:05:36,167 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 1381 DAG size of output: 1381 [2021-02-19 21:05:36,758 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 1324 DAG size of output: 1284 [2021-02-19 21:05:36,976 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 1275 DAG size of output: 1269 [2021-02-19 21:05:37,124 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 941 DAG size of output: 1256 [2021-02-19 21:05:39,661 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1729 DAG size of output: 979 [2021-02-19 21:05:39,823 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 1761 DAG size of output: 1012 [2021-02-19 21:05:40,008 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 2055 DAG size of output: 1192 [2021-02-19 21:05:40,319 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 2199 DAG size of output: 1322 [2021-02-19 21:05:40,541 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 2262 DAG size of output: 1363 [2021-02-19 21:05:40,974 WARN L202 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 3895 DAG size of output: 2281 [2021-02-19 21:05:41,459 WARN L202 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 2028 DAG size of output: 2639 [2021-02-19 21:05:41,649 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 1660 DAG size of output: 1652 [2021-02-19 21:05:41,831 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 1623 DAG size of output: 1623 [2021-02-19 21:05:42,388 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 1493 DAG size of output: 1601 [2021-02-19 21:05:42,513 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 1135 DAG size of output: 1042 [2021-02-19 21:05:42,675 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 1023 DAG size of output: 1243 [2021-02-19 21:05:42,783 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 741 DAG size of output: 885 [2021-02-19 21:05:44,116 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 867 DAG size of output: 1038 [2021-02-19 21:05:44,395 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 751 DAG size of output: 1052 [2021-02-19 21:05:44,561 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 690 DAG size of output: 833 [2021-02-19 21:05:46,110 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1056 DAG size of output: 809 [2021-02-19 21:05:46,292 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 1766 DAG size of output: 1200 [2021-02-19 21:05:46,521 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 1941 DAG size of output: 1296 [2021-02-19 21:05:46,739 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 1967 DAG size of output: 1313 [2021-02-19 21:05:46,978 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 1954 DAG size of output: 1952 [2021-02-19 21:05:47,340 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 1885 DAG size of output: 2090 [2021-02-19 21:05:47,495 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1388 DAG size of output: 1370 [2021-02-19 21:05:47,777 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2021-02-19 21:05:48,139 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1202 DAG size of output: 1166 [2021-02-19 21:05:48,298 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1155 DAG size of output: 1155 [2021-02-19 21:05:48,469 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 1131 DAG size of output: 1416 [2021-02-19 21:05:48,616 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 946 DAG size of output: 1130 [2021-02-19 21:05:49,840 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 820 DAG size of output: 949 [2021-02-19 21:05:51,128 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 1135 DAG size of output: 884 [2021-02-19 21:05:51,276 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1196 DAG size of output: 913 [2021-02-19 21:05:51,501 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 2191 DAG size of output: 1524 [2021-02-19 21:05:51,791 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 2245 DAG size of output: 1553 [2021-02-19 21:05:52,271 WARN L202 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 3475 DAG size of output: 2322 [2021-02-19 21:05:53,194 WARN L202 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 6866 DAG size of output: 4100 [2021-02-19 21:05:54,169 WARN L202 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 7402 DAG size of output: 4105 [2021-02-19 21:05:55,149 WARN L202 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 7402 DAG size of output: 4105 [2021-02-19 21:05:56,147 WARN L202 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 7407 DAG size of output: 4110 [2021-02-19 21:05:56,609 WARN L202 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 4112 DAG size of output: 2364 [2021-02-19 21:05:56,968 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 2072 DAG size of output: 1846 [2021-02-19 21:05:57,217 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 1675 DAG size of output: 1494 [2021-02-19 21:05:59,041 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 841 DAG size of output: 972 [2021-02-19 21:06:01,293 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 1945 DAG size of output: 1310 [2021-02-19 21:06:01,969 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 2171 DAG size of output: 1451 [2021-02-19 21:06:02,211 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 2265 DAG size of output: 1520 [2021-02-19 21:06:02,453 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 2265 DAG size of output: 1520 [2021-02-19 21:06:02,730 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 2267 DAG size of output: 1522 [2021-02-19 21:06:02,847 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1526 DAG size of output: 877 [2021-02-19 21:06:03,344 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:06:03,346 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:06:03,346 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:06:03,346 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:3 [2021-02-19 21:06:03,353 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:06:03,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:06:03,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2021-02-19 21:06:03,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576782647] [2021-02-19 21:06:03,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-02-19 21:06:03,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:06:03,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-02-19 21:06:03,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1387, Unknown=0, NotChecked=0, Total=1482 [2021-02-19 21:06:03,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:06:03,354 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:06:03,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 1.205128205128205) internal successors, (47), 38 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:06:03,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:06:03,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:06:03,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:06:03,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:06:03,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:06:03,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:06:03,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:06:03,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:06:03,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:06:03,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:06:03,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:06:03,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:06:03,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:06:03,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:06:03,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:06:03,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-02-19 21:06:03,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:06:03,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 21:06:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:06:03,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42166 [2021-02-19 21:06:03,887 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:06:03,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:06:03,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1540220189, now seen corresponding path program 13 times [2021-02-19 21:06:03,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:06:03,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654374436] [2021-02-19 21:06:03,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:06:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:06:04,189 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:06:04,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654374436] [2021-02-19 21:06:04,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083959273] [2021-02-19 21:06:04,190 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:06:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:06:04,218 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 80 conjunts are in the unsatisfiable core [2021-02-19 21:06:04,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:06:05,293 WARN L202 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2021-02-19 21:06:05,294 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:06:05,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 27 new quantified variables, introduced 91 case distinctions, treesize of input 63 treesize of output 774 [2021-02-19 21:06:08,242 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1319 DAG size of output: 1082 [2021-02-19 21:06:11,851 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 1718 DAG size of output: 1504 [2021-02-19 21:06:12,130 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 2711 DAG size of output: 2240 [2021-02-19 21:06:12,415 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 2711 DAG size of output: 2240 [2021-02-19 21:06:12,756 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 2734 DAG size of output: 2263 [2021-02-19 21:06:13,354 WARN L202 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 2265 DAG size of output: 2760 [2021-02-19 21:06:13,964 WARN L202 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 2214 DAG size of output: 2345 [2021-02-19 21:06:14,252 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 2206 DAG size of output: 2185 [2021-02-19 21:06:14,375 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2021-02-19 21:06:14,522 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 714 DAG size of output: 839 [2021-02-19 21:06:14,650 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 702 DAG size of output: 922 [2021-02-19 21:06:14,764 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 873 [2021-02-19 21:06:14,883 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 612 DAG size of output: 765 [2021-02-19 21:06:17,762 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 1251 DAG size of output: 1159 [2021-02-19 21:06:18,882 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 870 DAG size of output: 816 [2021-02-19 21:06:19,121 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 1672 DAG size of output: 1653 [2021-02-19 21:06:22,073 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 875 [2021-02-19 21:06:22,291 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 1478 DAG size of output: 1278 [2021-02-19 21:06:22,738 WARN L202 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 2806 DAG size of output: 2648 [2021-02-19 21:06:25,303 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1268 DAG size of output: 1210 [2021-02-19 21:06:25,497 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 1290 DAG size of output: 1224 [2021-02-19 21:06:27,624 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 1013 DAG size of output: 847 [2021-02-19 21:06:27,931 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 1918 DAG size of output: 1735 [2021-02-19 21:06:28,720 WARN L202 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 4108 DAG size of output: 3861 [2021-02-19 21:06:32,847 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 894 DAG size of output: 855 [2021-02-19 21:06:33,094 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 1472 DAG size of output: 1415 [2021-02-19 21:06:35,383 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 1102 DAG size of output: 1097 [2021-02-19 21:06:37,344 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 996 DAG size of output: 930 [2021-02-19 21:06:37,668 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 1885 DAG size of output: 1855 [2021-02-19 21:06:38,126 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 2979 DAG size of output: 2592 [2021-02-19 21:06:38,784 WARN L202 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 3330 DAG size of output: 2923 [2021-02-19 21:06:40,761 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 1034 DAG size of output: 935 [2021-02-19 21:06:41,197 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 1354 DAG size of output: 1208 [2021-02-19 21:06:43,382 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1049 DAG size of output: 1054 [2021-02-19 21:06:44,198 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 1683 DAG size of output: 1619 [2021-02-19 21:06:44,568 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 2475 DAG size of output: 2361 [2021-02-19 21:06:46,294 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 895 DAG size of output: 878 [2021-02-19 21:06:47,815 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 1440 DAG size of output: 1361 [2021-02-19 21:06:48,370 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 1717 DAG size of output: 1614 [2021-02-19 21:06:49,009 WARN L202 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 3510 DAG size of output: 3419 [2021-02-19 21:06:50,278 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 5856 DAG size of output: 5538 [2021-02-19 21:06:51,618 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 5911 DAG size of output: 5557 [2021-02-19 21:06:53,802 WARN L202 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 9470 DAG size of output: 8715 [2021-02-19 21:06:56,382 WARN L202 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 9893 DAG size of output: 8955 [2021-02-19 21:06:58,781 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 1625 DAG size of output: 1180 [2021-02-19 21:07:00,218 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 968 DAG size of output: 790 [2021-02-19 21:07:00,520 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 2310 DAG size of output: 1732 [2021-02-19 21:07:03,170 WARN L202 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 11843 DAG size of output: 10408 [2021-02-19 21:07:06,014 WARN L202 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 12069 DAG size of output: 10662 [2021-02-19 21:07:09,001 WARN L202 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 12304 DAG size of output: 10799 [2021-02-19 21:07:12,222 WARN L202 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 12623 DAG size of output: 11076 [2021-02-19 21:07:12,544 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 574 DAG size of output: 799 [2021-02-19 21:07:17,064 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 1222 DAG size of output: 1178 [2021-02-19 21:07:17,220 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 1295 DAG size of output: 1237 [2021-02-19 21:07:20,670 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1517 DAG size of output: 1293 [2021-02-19 21:07:20,926 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 2085 DAG size of output: 1873 [2021-02-19 21:07:21,325 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 3132 DAG size of output: 2873 [2021-02-19 21:07:23,935 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 1771 DAG size of output: 1614 [2021-02-19 21:07:26,166 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 1473 DAG size of output: 1347 [2021-02-19 21:07:26,496 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 2646 DAG size of output: 2378 [2021-02-19 21:07:28,723 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 1314 DAG size of output: 1284 [2021-02-19 21:07:30,918 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 1313 DAG size of output: 1108 [2021-02-19 21:07:32,728 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 1157 DAG size of output: 1094 [2021-02-19 21:07:32,866 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1231 DAG size of output: 1163 [2021-02-19 21:07:33,145 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 2206 DAG size of output: 1970 [2021-02-19 21:07:33,601 WARN L202 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 3256 DAG size of output: 2982 [2021-02-19 21:07:34,386 WARN L202 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 4900 DAG size of output: 4652 [2021-02-19 21:07:36,100 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1221 DAG size of output: 1050 [2021-02-19 21:07:37,227 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 1852 DAG size of output: 1640 [2021-02-19 21:07:39,501 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1417 DAG size of output: 1310 [2021-02-19 21:07:39,828 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 2751 DAG size of output: 2408 [2021-02-19 21:07:41,417 WARN L202 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 8107 DAG size of output: 7809 [2021-02-19 21:07:44,689 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 1169 DAG size of output: 1060 [2021-02-19 21:07:46,293 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 1267 DAG size of output: 1175 [2021-02-19 21:07:48,926 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 1158 DAG size of output: 1056 [2021-02-19 21:07:50,439 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 1256 DAG size of output: 1171 [2021-02-19 21:07:50,877 WARN L202 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 2376 DAG size of output: 2190 [2021-02-19 21:07:52,988 WARN L202 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 10534 DAG size of output: 10078 [2021-02-19 21:07:55,877 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 1090 DAG size of output: 1011 [2021-02-19 21:07:56,088 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 1496 DAG size of output: 1466 [2021-02-19 21:07:56,975 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 2068 DAG size of output: 1823 [2021-02-19 21:07:59,577 WARN L202 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 12450 DAG size of output: 11688 [2021-02-19 21:08:02,241 WARN L202 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 13101 DAG size of output: 12266 [2021-02-19 21:08:05,060 WARN L202 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 13395 DAG size of output: 12440 [2021-02-19 21:08:08,039 WARN L202 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 14397 DAG size of output: 13079 [2021-02-19 21:08:11,199 WARN L202 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 14649 DAG size of output: 13223 [2021-02-19 21:08:14,538 WARN L202 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 14977 DAG size of output: 13506 [2021-02-19 21:08:18,880 WARN L202 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 15194 DAG size of output: 13738 [2021-02-19 21:08:25,628 WARN L202 SmtUtils]: Spent 6.66 s on a formula simplification. DAG size of input: 26745 DAG size of output: 23370 [2021-02-19 21:08:25,865 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 700 DAG size of output: 851 [2021-02-19 21:08:25,985 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 669 DAG size of output: 954 [2021-02-19 21:08:26,092 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 655 DAG size of output: 927 [2021-02-19 21:08:26,198 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 650 DAG size of output: 911 [2021-02-19 21:08:30,864 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 1732 DAG size of output: 1508 [2021-02-19 21:08:31,107 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 1999 DAG size of output: 1657 [2021-02-19 21:08:34,875 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 1261 DAG size of output: 1207 [2021-02-19 21:08:35,020 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 1380 DAG size of output: 1286 [2021-02-19 21:08:35,314 WARN L202 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 2319 DAG size of output: 2179 [2021-02-19 21:08:35,797 WARN L202 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 3783 DAG size of output: 3037 [2021-02-19 21:08:37,172 WARN L202 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 4152 DAG size of output: 3383 [2021-02-19 21:08:40,148 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1000 DAG size of output: 921 [2021-02-19 21:08:40,520 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 1271 DAG size of output: 1151 [2021-02-19 21:08:40,758 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 1888 DAG size of output: 1608 [2021-02-19 21:08:43,383 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 1820 DAG size of output: 1729 [2021-02-19 21:08:45,493 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 1404 DAG size of output: 1234 [2021-02-19 21:08:45,822 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 2664 DAG size of output: 2563 [2021-02-19 21:08:46,455 WARN L202 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 3829 DAG size of output: 3556 [2021-02-19 21:08:47,111 WARN L202 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 4064 DAG size of output: 3714 [2021-02-19 21:08:48,382 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 7138 DAG size of output: 6235 [2021-02-19 21:08:50,399 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 868 DAG size of output: 780 [2021-02-19 21:08:51,843 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 924 DAG size of output: 881 [2021-02-19 21:08:52,080 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 1542 DAG size of output: 1430 [2021-02-19 21:08:52,324 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 1772 DAG size of output: 1590 [2021-02-19 21:08:52,647 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 2049 DAG size of output: 1818 [2021-02-19 21:08:55,186 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 1221 DAG size of output: 1101 [2021-02-19 21:08:55,374 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 1713 DAG size of output: 1582 [2021-02-19 21:08:57,489 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 1317 DAG size of output: 1181 [2021-02-19 21:08:57,858 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 2506 DAG size of output: 2399 [2021-02-19 21:08:58,250 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 2728 DAG size of output: 2579 [2021-02-19 21:08:58,934 WARN L202 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 4060 DAG size of output: 3794 [2021-02-19 21:09:01,481 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 1055 DAG size of output: 961 [2021-02-19 21:09:03,173 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 1745 DAG size of output: 1637 [2021-02-19 21:09:03,429 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 2011 DAG size of output: 1797 Received shutdown request... [2021-02-19 21:09:04,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51170 [2021-02-19 21:09:04,337 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-19 21:09:04,340 WARN L224 ceAbstractionStarter]: Timeout [2021-02-19 21:09:04,341 INFO L202 PluginConnector]: Adding new model unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 09:09:04 BasicIcfg [2021-02-19 21:09:04,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 21:09:04,341 INFO L168 Benchmark]: Toolchain (without parser) took 561969.44 ms. Allocated memory was 255.9 MB in the beginning and 3.6 GB in the end (delta: 3.4 GB). Free memory was 236.4 MB in the beginning and 3.0 GB in the end (delta: -2.7 GB). Peak memory consumption was 2.3 GB. Max. memory is 16.0 GB. [2021-02-19 21:09:04,341 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 21:09:04,341 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.66 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 21:09:04,341 INFO L168 Benchmark]: Boogie Preprocessor took 21.12 ms. Allocated memory is still 255.9 MB. Free memory was 234.3 MB in the beginning and 233.5 MB in the end (delta: 848.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 21:09:04,341 INFO L168 Benchmark]: RCFGBuilder took 319.02 ms. Allocated memory is still 255.9 MB. Free memory was 233.3 MB in the beginning and 230.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.0 GB. [2021-02-19 21:09:04,341 INFO L168 Benchmark]: TraceAbstraction took 561600.40 ms. Allocated memory was 255.9 MB in the beginning and 3.6 GB in the end (delta: 3.4 GB). Free memory was 229.4 MB in the beginning and 3.0 GB in the end (delta: -2.7 GB). Peak memory consumption was 2.3 GB. Max. memory is 16.0 GB. [2021-02-19 21:09:04,342 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.66 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.12 ms. Allocated memory is still 255.9 MB. Free memory was 234.3 MB in the beginning and 233.5 MB in the end (delta: 848.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 319.02 ms. Allocated memory is still 255.9 MB. Free memory was 233.3 MB in the beginning and 230.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 561600.40 ms. Allocated memory was 255.9 MB in the beginning and 3.6 GB in the end (delta: 3.4 GB). Free memory was 229.4 MB in the beginning and 3.0 GB in the end (delta: -2.7 GB). Peak memory consumption was 2.3 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 64). Cancelled while PartialOrderCegarLoop was analyzing trace of length 28 with TraceHistMax 14,while TraceCheckSpWp was constructing forward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 561.5s, OverallIterations: 18, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 373.9s InterpolantComputationTime, 602 NumberOfCodeBlocks, 602 NumberOfCodeBlocksAsserted, 68 NumberOfCheckSat, 569 ConstructedInterpolants, 0 QuantifiedInterpolants, 161722 SizeOfPredicates, 36 NumberOfNonLiveVariables, 1176 ConjunctsInSsa, 562 ConjunctsInUnsatCore, 33 InterpolantComputations, 1 PerfectInterpolantSequences, 179/1222 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown