/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-Persistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 02:47:54,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 02:47:54,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 02:47:54,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-17 02:47:54,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-Persistent-NoLbe.epf [2021-06-17 02:47:54,846 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 02:47:54,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 02:47:54,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 02:47:54,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 02:47:54,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 02:47:54,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 02:47:54,848 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 02:47:54,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 02:47:54,849 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 02:47:54,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 02:47:54,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 02:47:54,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 02:47:54,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 02:47:54,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 02:47:54,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 02:47:54,851 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 02:47:54,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 02:47:54,851 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 02:47:54,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 02:47:54,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 02:47:54,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 02:47:54,852 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 02:47:54,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 02:47:54,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 02:47:54,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 02:47:54,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 02:47:54,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 02:47:54,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 02:47:54,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 02:47:54,854 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 02:47:54,854 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 02:47:54,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 02:47:54,855 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS [2021-06-17 02:47:54,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 02:47:55,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 02:47:55,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 02:47:55,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 02:47:55,141 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 02:47:55,143 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 02:47:55,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-2.wvr.bpl [2021-06-17 02:47:55,144 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-2.wvr.bpl' [2021-06-17 02:47:55,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 02:47:55,166 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 02:47:55,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 02:47:55,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 02:47:55,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 02:47:55,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:47:55" (1/1) ... [2021-06-17 02:47:55,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:47:55" (1/1) ... [2021-06-17 02:47:55,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 02:47:55,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 02:47:55,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 02:47:55,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 02:47:55,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:47:55" (1/1) ... [2021-06-17 02:47:55,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:47:55" (1/1) ... [2021-06-17 02:47:55,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:47:55" (1/1) ... [2021-06-17 02:47:55,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:47:55" (1/1) ... [2021-06-17 02:47:55,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:47:55" (1/1) ... [2021-06-17 02:47:55,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:47:55" (1/1) ... [2021-06-17 02:47:55,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:47:55" (1/1) ... [2021-06-17 02:47:55,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 02:47:55,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 02:47:55,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 02:47:55,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 02:47:55,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:47:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 02:47:55,259 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 02:47:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 02:47:55,259 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 02:47:55,260 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 02:47:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 02:47:55,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 02:47:55,260 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 02:47:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 02:47:55,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 02:47:55,261 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 02:47:55,490 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 02:47:55,490 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-06-17 02:47:55,491 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-06-17 02:47:55,493 INFO L202 PluginConnector]: Adding new model unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 02:47:55 BoogieIcfgContainer [2021-06-17 02:47:55,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 02:47:55,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 02:47:55,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 02:47:55,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 02:47:55,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:47:55" (1/2) ... [2021-06-17 02:47:55,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d994787 and model type unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 02:47:55, skipping insertion in model container [2021-06-17 02:47:55,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 02:47:55" (2/2) ... [2021-06-17 02:47:55,500 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-2.wvr.bpl [2021-06-17 02:47:55,505 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 02:47:55,506 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 02:47:55,506 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 02:47:55,507 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 02:47:55,533 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-17 02:47:55,553 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 02:47:55,639 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 02:47:55,639 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 02:47:55,639 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 02:47:55,639 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 02:47:55,639 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 02:47:55,639 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 02:47:55,640 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 02:47:55,640 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 02:47:55,690 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:47:55,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:47:55,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1489504451, now seen corresponding path program 1 times [2021-06-17 02:47:55,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:47:55,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549529608] [2021-06-17 02:47:55,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:47:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:47:55,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:47:55,953 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:47:55,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549529608] [2021-06-17 02:47:55,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549529608] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 02:47:55,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 02:47:55,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 02:47:55,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377925289] [2021-06-17 02:47:55,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-17 02:47:55,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:47:55,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-17 02:47:55,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-17 02:47:55,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:47:55,971 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:47:55,972 INFO L483 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) [2021-06-17 02:47:55,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:47:56,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:56,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 02:47:56,012 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:47:56,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:47:56,013 INFO L82 PathProgramCache]: Analyzing trace with hash -2038182531, now seen corresponding path program 1 times [2021-06-17 02:47:56,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:47:56,013 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89826525] [2021-06-17 02:47:56,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:47:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:47:56,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:47:56,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:47:56,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89826525] [2021-06-17 02:47:56,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89826525] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:47:56,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604308290] [2021-06-17 02:47:56,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:47:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:47:56,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-17 02:47:56,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:47:56,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-17 02:47:56,309 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 02:47:56,311 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:47:56,313 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 02:47:56,313 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-06-17 02:47:56,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:47:56,328 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604308290] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:47:56,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:47:56,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-06-17 02:47:56,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730915253] [2021-06-17 02:47:56,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-17 02:47:56,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:47:56,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-17 02:47:56,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-17 02:47:56,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:47:56,331 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:47:56,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 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) [2021-06-17 02:47:56,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:56,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:47:56,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:56,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:56,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:47:56,593 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:47:56,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:47:56,594 INFO L82 PathProgramCache]: Analyzing trace with hash 272670723, now seen corresponding path program 2 times [2021-06-17 02:47:56,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:47:56,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590364471] [2021-06-17 02:47:56,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:47:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:47:56,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:47:56,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:47:56,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590364471] [2021-06-17 02:47:56,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590364471] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:47:56,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799552886] [2021-06-17 02:47:56,632 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:47:56,671 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 02:47:56,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:47:56,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-17 02:47:56,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:47:56,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:47:56,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799552886] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:47:56,715 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:47:56,715 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-06-17 02:47:56,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753936580] [2021-06-17 02:47:56,716 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-17 02:47:56,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:47:56,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-17 02:47:56,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-17 02:47:56,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:47:56,718 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:47:56,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 02:47:56,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:56,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:56,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:47:56,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:56,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:56,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:47:56,958 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:47:56,961 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:47:56,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:47:56,961 INFO L82 PathProgramCache]: Analyzing trace with hash 554409746, now seen corresponding path program 1 times [2021-06-17 02:47:56,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:47:56,961 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995376117] [2021-06-17 02:47:56,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:47:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:47:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:47:57,057 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:47:57,057 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995376117] [2021-06-17 02:47:57,057 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995376117] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:47:57,057 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855334361] [2021-06-17 02:47:57,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:47:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:47:57,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 20 conjunts are in the unsatisfiable core [2021-06-17 02:47:57,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:47:57,251 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:47:57,257 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 [2021-06-17 02:47:57,260 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 02:47:57,261 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:47:57,262 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 02:47:57,262 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:3 [2021-06-17 02:47:57,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:47:57,269 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855334361] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:47:57,270 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:47:57,270 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-17 02:47:57,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068928996] [2021-06-17 02:47:57,270 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 02:47:57,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:47:57,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 02:47:57,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-06-17 02:47:57,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:47:57,272 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:47:57,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 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) [2021-06-17 02:47:57,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:57,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:57,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:47:57,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:47:57,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:57,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:57,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:47:57,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:47:57,585 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:47:57,587 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:47:57,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:47:57,588 INFO L82 PathProgramCache]: Analyzing trace with hash 786294808, now seen corresponding path program 2 times [2021-06-17 02:47:57,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:47:57,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361841914] [2021-06-17 02:47:57,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:47:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:47:57,699 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:47:57,699 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:47:57,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361841914] [2021-06-17 02:47:57,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361841914] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:47:57,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537251687] [2021-06-17 02:47:57,699 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:47:57,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 02:47:57,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:47:57,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-17 02:47:57,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:47:57,900 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:47:57,900 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 [2021-06-17 02:47:57,921 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 02:47:57,922 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:47:57,922 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 02:47:57,923 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:3 [2021-06-17 02:47:57,932 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:47:57,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537251687] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:47:57,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:47:57,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-17 02:47:57,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784659022] [2021-06-17 02:47:57,933 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 02:47:57,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:47:57,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 02:47:57,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-06-17 02:47:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:47:57,934 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:47:57,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 02:47:57,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:57,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:57,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:47:57,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:47:57,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:47:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:58,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:58,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:47:58,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:47:58,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:47:58,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:47:58,245 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:47:58,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:47:58,245 INFO L82 PathProgramCache]: Analyzing trace with hash -615202862, now seen corresponding path program 3 times [2021-06-17 02:47:58,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:47:58,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318924851] [2021-06-17 02:47:58,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:47:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:47:58,291 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:47:58,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:47:58,291 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318924851] [2021-06-17 02:47:58,291 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318924851] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:47:58,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462625973] [2021-06-17 02:47:58,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:47:58,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-17 02:47:58,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:47:58,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-17 02:47:58,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:47:58,384 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:47:58,384 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462625973] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:47:58,384 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:47:58,384 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-06-17 02:47:58,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074915822] [2021-06-17 02:47:58,385 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-17 02:47:58,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:47:58,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-17 02:47:58,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-17 02:47:58,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:47:58,385 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:47:58,385 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 02:47:58,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:58,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:58,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:47:58,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:47:58,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:47:58,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:47:58,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:58,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:58,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:47:58,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:47:58,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:47:58,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:47:58,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:47:58,665 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:47:58,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:47:58,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1199867613, now seen corresponding path program 4 times [2021-06-17 02:47:58,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:47:58,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649539221] [2021-06-17 02:47:58,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:47:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:47:58,788 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:47:58,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:47:58,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649539221] [2021-06-17 02:47:58,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649539221] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:47:58,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116331101] [2021-06-17 02:47:58,789 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:47:58,827 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 02:47:58,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:47:58,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 29 conjunts are in the unsatisfiable core [2021-06-17 02:47:58,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:47:59,092 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:47:59,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-06-17 02:47:59,154 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 02:47:59,155 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:47:59,156 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 02:47:59,156 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-06-17 02:47:59,161 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:47:59,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116331101] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:47:59,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:47:59,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-06-17 02:47:59,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078126874] [2021-06-17 02:47:59,163 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-17 02:47:59,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:47:59,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-17 02:47:59,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-06-17 02:47:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:47:59,164 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:47:59,164 INFO L483 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) [2021-06-17 02:47:59,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:59,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:59,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:47:59,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:47:59,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:47:59,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:47:59,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:47:59,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:59,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:47:59,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:47:59,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:47:59,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:47:59,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:47:59,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:47:59,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-17 02:47:59,541 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:47:59,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:47:59,542 INFO L82 PathProgramCache]: Analyzing trace with hash 580602461, now seen corresponding path program 5 times [2021-06-17 02:47:59,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:47:59,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527330012] [2021-06-17 02:47:59,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:47:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:47:59,633 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:47:59,633 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:47:59,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527330012] [2021-06-17 02:47:59,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527330012] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:47:59,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873694809] [2021-06-17 02:47:59,633 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:47:59,669 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-17 02:47:59,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:47:59,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-17 02:47:59,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:47:59,887 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:47:59,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 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 [2021-06-17 02:48:00,010 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 02:48:00,012 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:48:00,012 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 02:48:00,014 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:3 [2021-06-17 02:48:00,021 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:00,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873694809] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:00,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:48:00,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-06-17 02:48:00,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136148041] [2021-06-17 02:48:00,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-17 02:48:00,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:48:00,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-17 02:48:00,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-06-17 02:48:00,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:00,024 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:48:00,024 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 18 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 02:48:00,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:00,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:00,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:00,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:00,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:00,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:00,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:00,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:00,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:00,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:00,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:00,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:00,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:00,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:00,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:00,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:00,366 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-06-17 02:48:00,366 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:48:00,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:48:00,366 INFO L82 PathProgramCache]: Analyzing trace with hash -59400093, now seen corresponding path program 6 times [2021-06-17 02:48:00,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:48:00,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660968239] [2021-06-17 02:48:00,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:48:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:48:00,432 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:00,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:48:00,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660968239] [2021-06-17 02:48:00,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660968239] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:00,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126410615] [2021-06-17 02:48:00,433 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:48:00,470 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-17 02:48:00,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:48:00,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-17 02:48:00,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:48:00,516 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:00,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126410615] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:00,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:48:00,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-06-17 02:48:00,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063458652] [2021-06-17 02:48:00,517 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 02:48:00,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:48:00,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 02:48:00,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-06-17 02:48:00,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:00,518 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:48:00,518 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 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) [2021-06-17 02:48:00,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:00,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:00,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:00,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:00,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:00,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:00,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:00,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:00,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:00,824 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-06-17 02:48:00,825 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:48:00,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:48:00,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1149850958, now seen corresponding path program 7 times [2021-06-17 02:48:00,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:48:00,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083080259] [2021-06-17 02:48:00,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:48:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:48:00,965 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:00,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:48:00,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083080259] [2021-06-17 02:48:00,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083080259] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:00,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759865217] [2021-06-17 02:48:00,966 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:48:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:48:00,992 WARN L261 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 38 conjunts are in the unsatisfiable core [2021-06-17 02:48:00,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:48:01,301 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:48:01,301 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 [2021-06-17 02:48:01,599 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 02:48:01,600 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:48:01,600 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 02:48:01,600 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:3 [2021-06-17 02:48:01,606 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:01,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759865217] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:01,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:48:01,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-06-17 02:48:01,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968324467] [2021-06-17 02:48:01,606 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-17 02:48:01,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:48:01,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-17 02:48:01,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-17 02:48:01,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:01,607 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:48:01,607 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.32) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 02:48:01,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:01,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:01,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:01,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:01,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:01,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:01,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:01,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:01,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:01,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:01,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:01,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 02:48:01,996 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-06-17 02:48:01,997 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:48:01,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:48:01,997 INFO L82 PathProgramCache]: Analyzing trace with hash -2011982024, now seen corresponding path program 8 times [2021-06-17 02:48:01,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:48:01,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602663342] [2021-06-17 02:48:01,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:48:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:48:02,142 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:02,143 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:48:02,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602663342] [2021-06-17 02:48:02,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602663342] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:02,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130517266] [2021-06-17 02:48:02,143 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:48:02,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 02:48:02,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:48:02,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 40 conjunts are in the unsatisfiable core [2021-06-17 02:48:02,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:48:02,473 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:48:02,473 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 [2021-06-17 02:48:03,084 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 02:48:03,085 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:48:03,086 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 02:48:03,086 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:3 [2021-06-17 02:48:03,091 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:03,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130517266] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:03,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:48:03,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-06-17 02:48:03,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988449049] [2021-06-17 02:48:03,092 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-17 02:48:03,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:48:03,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-17 02:48:03,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-06-17 02:48:03,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:03,093 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:48:03,093 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.4) internal successors, (35), 24 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 02:48:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:03,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 02:48:03,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:03,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 02:48:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:03,590 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2021-06-17 02:48:03,591 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:48:03,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:48:03,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1326726002, now seen corresponding path program 9 times [2021-06-17 02:48:03,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:48:03,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490087442] [2021-06-17 02:48:03,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:48:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:48:03,685 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:03,685 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:48:03,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490087442] [2021-06-17 02:48:03,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490087442] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:03,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301005435] [2021-06-17 02:48:03,686 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:48:03,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-17 02:48:03,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:48:03,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-17 02:48:03,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:48:03,797 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:03,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301005435] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:03,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:48:03,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-06-17 02:48:03,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000717839] [2021-06-17 02:48:03,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-17 02:48:03,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:48:03,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-17 02:48:03,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-06-17 02:48:03,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:03,799 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:48:03,799 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 02:48:03,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:03,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:03,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:03,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:03,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:03,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:03,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:03,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:03,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:03,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 02:48:03,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:03,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:03,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 02:48:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 02:48:04,142 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:48:04,142 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:48:04,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:48:04,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1129614973, now seen corresponding path program 10 times [2021-06-17 02:48:04,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:48:04,143 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646070762] [2021-06-17 02:48:04,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:48:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:48:04,312 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:04,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:48:04,312 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646070762] [2021-06-17 02:48:04,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646070762] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:04,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574092873] [2021-06-17 02:48:04,313 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:48:04,341 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 02:48:04,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:48:04,341 WARN L261 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 47 conjunts are in the unsatisfiable core [2021-06-17 02:48:04,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:48:04,839 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:48:04,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 39 treesize of output 252 [2021-06-17 02:48:06,617 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 02:48:06,618 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:48:06,619 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 02:48:06,619 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-06-17 02:48:06,623 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:06,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574092873] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:06,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:48:06,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-06-17 02:48:06,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285912057] [2021-06-17 02:48:06,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-17 02:48:06,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:48:06,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-17 02:48:06,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2021-06-17 02:48:06,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:06,625 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:48:06,625 INFO L483 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) [2021-06-17 02:48:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 02:48:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:06,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 02:48:06,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 02:48:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:06,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 02:48:06,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 02:48:07,173 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable198 [2021-06-17 02:48:07,174 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:48:07,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:48:07,174 INFO L82 PathProgramCache]: Analyzing trace with hash -971772099, now seen corresponding path program 11 times [2021-06-17 02:48:07,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:48:07,174 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2945686] [2021-06-17 02:48:07,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:48:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:48:07,399 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:07,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:48:07,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2945686] [2021-06-17 02:48:07,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2945686] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:07,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552372764] [2021-06-17 02:48:07,400 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:48:07,436 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-17 02:48:07,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:48:07,437 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 49 conjunts are in the unsatisfiable core [2021-06-17 02:48:07,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:48:08,024 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-06-17 02:48:08,025 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:48:08,025 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 [2021-06-17 02:48:09,147 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 269 [2021-06-17 02:48:09,759 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 155 [2021-06-17 02:48:10,088 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 214 [2021-06-17 02:48:10,255 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 247 [2021-06-17 02:48:10,555 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 378 [2021-06-17 02:48:10,843 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 378 [2021-06-17 02:48:11,171 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 472 DAG size of output: 387 [2021-06-17 02:48:11,570 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 257 [2021-06-17 02:48:12,273 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 258 [2021-06-17 02:48:12,399 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 258 [2021-06-17 02:48:12,597 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 282 [2021-06-17 02:48:13,600 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 02:48:13,601 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:48:13,601 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 02:48:13,601 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:3 [2021-06-17 02:48:13,606 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:13,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552372764] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:13,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:48:13,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-06-17 02:48:13,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195319316] [2021-06-17 02:48:13,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-17 02:48:13,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:48:13,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-17 02:48:13,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-17 02:48:13,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:13,608 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:48:13,608 INFO L483 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) [2021-06-17 02:48:13,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:13,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:13,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:13,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:13,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:13,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:13,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:13,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:13,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:13,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 02:48:13,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:13,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 02:48:13,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 02:48:13,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 02:48:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:14,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 02:48:14,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 02:48:14,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 02:48:14,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:48:14,225 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:48:14,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:48:14,225 INFO L82 PathProgramCache]: Analyzing trace with hash -373610301, now seen corresponding path program 12 times [2021-06-17 02:48:14,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:48:14,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880078061] [2021-06-17 02:48:14,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:48:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:48:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:14,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:48:14,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880078061] [2021-06-17 02:48:14,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880078061] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:14,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50784389] [2021-06-17 02:48:14,352 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:48:14,389 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-17 02:48:14,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:48:14,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-17 02:48:14,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:48:14,448 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 45 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:14,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50784389] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:14,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:48:14,449 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-06-17 02:48:14,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140827201] [2021-06-17 02:48:14,449 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-17 02:48:14,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:48:14,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-17 02:48:14,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-06-17 02:48:14,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:14,450 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:48:14,450 INFO L483 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) [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 02:48:14,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 02:48:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 02:48:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 02:48:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 02:48:14,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 02:48:14,846 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable900,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:48:14,846 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:48:14,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:48:14,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1994534482, now seen corresponding path program 13 times [2021-06-17 02:48:14,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:48:14,847 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759295096] [2021-06-17 02:48:14,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:48:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:48:15,080 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:15,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:48:15,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759295096] [2021-06-17 02:48:15,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759295096] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:15,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24580809] [2021-06-17 02:48:15,080 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 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 [2021-06-17 02:48:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:48:15,109 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 56 conjunts are in the unsatisfiable core [2021-06-17 02:48:15,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:48:15,825 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-06-17 02:48:15,825 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:48:15,826 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 [2021-06-17 02:48:16,854 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 265 [2021-06-17 02:48:17,053 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 286 [2021-06-17 02:48:17,240 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 286 [2021-06-17 02:48:17,446 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 298 [2021-06-17 02:48:17,831 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 419 [2021-06-17 02:48:18,054 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 367 [2021-06-17 02:48:18,311 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 330 [2021-06-17 02:48:18,542 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 298 [2021-06-17 02:48:18,668 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 235 [2021-06-17 02:48:19,010 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 261 [2021-06-17 02:48:19,147 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 218 [2021-06-17 02:48:19,901 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 451 DAG size of output: 358 [2021-06-17 02:48:20,144 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 329 [2021-06-17 02:48:20,259 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 245 [2021-06-17 02:48:21,526 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 356 [2021-06-17 02:48:22,061 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 494 [2021-06-17 02:48:22,308 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 304 [2021-06-17 02:48:23,241 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 239 [2021-06-17 02:48:23,766 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 245 [2021-06-17 02:48:24,277 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 219 [2021-06-17 02:48:24,555 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 531 DAG size of output: 342 [2021-06-17 02:48:25,376 WARN L205 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 1046 DAG size of output: 658 [2021-06-17 02:48:26,214 WARN L205 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 1046 DAG size of output: 658 [2021-06-17 02:48:27,123 WARN L205 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 1050 DAG size of output: 663 [2021-06-17 02:48:28,222 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 665 DAG size of output: 835 [2021-06-17 02:48:28,424 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 401 DAG size of output: 361 [2021-06-17 02:48:29,293 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 271 [2021-06-17 02:48:29,643 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 538 [2021-06-17 02:48:29,755 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 222 [2021-06-17 02:48:30,136 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 342 [2021-06-17 02:48:30,770 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 792 DAG size of output: 458 [2021-06-17 02:48:31,276 WARN L205 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 792 DAG size of output: 458 [2021-06-17 02:48:31,883 WARN L205 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 797 DAG size of output: 465 [2021-06-17 02:48:32,477 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 467 DAG size of output: 616 [2021-06-17 02:48:32,728 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 373 [2021-06-17 02:48:32,962 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 375 [2021-06-17 02:48:33,182 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 343 [2021-06-17 02:48:34,032 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 277 [2021-06-17 02:48:34,448 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 239 [2021-06-17 02:48:34,644 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 594 DAG size of output: 380 [2021-06-17 02:48:34,928 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 437 [2021-06-17 02:48:35,723 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 197 [2021-06-17 02:48:36,226 WARN L205 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 899 DAG size of output: 562 [2021-06-17 02:48:36,869 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 436 [2021-06-17 02:48:37,984 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 385 DAG size of output: 254 [2021-06-17 02:48:38,899 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 422 [2021-06-17 02:48:39,687 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 187 [2021-06-17 02:48:40,173 WARN L205 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 819 DAG size of output: 545 [2021-06-17 02:48:41,337 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 1551 DAG size of output: 952 [2021-06-17 02:48:42,498 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 1551 DAG size of output: 952 [2021-06-17 02:48:43,756 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1554 DAG size of output: 954 [2021-06-17 02:48:43,919 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 954 DAG size of output: 611 [2021-06-17 02:48:44,323 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 419 DAG size of output: 447 [2021-06-17 02:48:45,069 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 294 [2021-06-17 02:48:45,235 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 336 [2021-06-17 02:48:45,406 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 336 [2021-06-17 02:48:45,581 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 634 DAG size of output: 338 [2021-06-17 02:48:45,759 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 321 [2021-06-17 02:48:46,088 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 02:48:46,090 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:48:46,090 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 02:48:46,090 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:3 [2021-06-17 02:48:46,095 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:46,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24580809] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:46,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:48:46,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2021-06-17 02:48:46,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470457995] [2021-06-17 02:48:46,096 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-06-17 02:48:46,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:48:46,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-06-17 02:48:46,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1241, Unknown=0, NotChecked=0, Total=1332 [2021-06-17 02:48:46,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:46,098 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:48:46,099 INFO L483 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) [2021-06-17 02:48:46,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:46,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:46,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:46,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:46,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:46,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:46,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:46,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 02:48:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 02:48:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 02:48:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 02:48:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 02:48:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:48:46,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:46,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:48:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:48:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 02:48:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 02:48:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:48:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:48:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 02:48:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 02:48:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 02:48:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 02:48:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 02:48:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 02:48:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 02:48:46,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable901,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:48:46,769 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:48:46,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:48:46,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1302404696, now seen corresponding path program 14 times [2021-06-17 02:48:46,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:48:46,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581934455] [2021-06-17 02:48:46,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:48:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:48:46,997 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:48:46,997 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:48:46,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581934455] [2021-06-17 02:48:46,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581934455] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:48:46,998 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013446736] [2021-06-17 02:48:46,998 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 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 [2021-06-17 02:48:47,026 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 02:48:47,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:48:47,027 WARN L261 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 58 conjunts are in the unsatisfiable core [2021-06-17 02:48:47,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:48:47,845 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2021-06-17 02:48:47,845 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 02:48:47,846 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 [2021-06-17 02:48:49,203 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 351 [2021-06-17 02:48:49,393 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 372 [2021-06-17 02:48:49,616 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 590 DAG size of output: 408 [2021-06-17 02:48:50,370 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 244 [2021-06-17 02:48:51,111 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 389 [2021-06-17 02:48:51,301 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 591 DAG size of output: 409 [2021-06-17 02:48:51,562 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 627 DAG size of output: 445 [2021-06-17 02:48:52,103 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 1091 DAG size of output: 727 [2021-06-17 02:48:52,689 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 1110 DAG size of output: 728 [2021-06-17 02:48:53,562 WARN L205 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 1134 DAG size of output: 753 [2021-06-17 02:48:54,405 WARN L205 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 1155 DAG size of output: 775 [2021-06-17 02:48:55,347 WARN L205 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 1175 DAG size of output: 796 [2021-06-17 02:48:56,262 WARN L205 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 1175 DAG size of output: 796 [2021-06-17 02:48:57,319 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 1192 DAG size of output: 813 [2021-06-17 02:48:59,938 WARN L205 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 815 DAG size of output: 982 [2021-06-17 02:49:01,839 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 786 DAG size of output: 884 [2021-06-17 02:49:02,937 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 765 DAG size of output: 798 [2021-06-17 02:49:04,827 WARN L205 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 754 DAG size of output: 1042 [2021-06-17 02:49:05,747 WARN L205 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 741 DAG size of output: 844 [2021-06-17 02:49:06,087 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 317 [2021-06-17 02:49:07,143 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 179 [2021-06-17 02:49:07,275 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 256 [2021-06-17 02:49:07,445 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 248 [2021-06-17 02:49:08,662 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 230 [2021-06-17 02:49:08,926 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 252 [2021-06-17 02:49:09,140 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 259 [2021-06-17 02:49:10,049 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 199 [2021-06-17 02:49:10,400 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 331 [2021-06-17 02:49:10,820 WARN L205 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 350 [2021-06-17 02:49:11,484 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 160 [2021-06-17 02:49:12,084 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 213 [2021-06-17 02:49:12,262 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 217 [2021-06-17 02:49:12,802 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 385 DAG size of output: 246 [2021-06-17 02:49:13,286 WARN L205 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 763 DAG size of output: 331 [2021-06-17 02:49:13,445 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 262 [2021-06-17 02:49:13,677 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 324 [2021-06-17 02:49:13,862 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 244 [2021-06-17 02:49:14,492 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 257 [2021-06-17 02:49:14,817 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 218 [2021-06-17 02:49:14,944 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 210 [2021-06-17 02:49:15,113 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 228 [2021-06-17 02:49:15,298 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 241 [2021-06-17 02:49:15,963 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 210 [2021-06-17 02:49:16,631 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 238 [2021-06-17 02:49:16,804 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 282 [2021-06-17 02:49:17,041 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 421 DAG size of output: 300 [2021-06-17 02:49:17,404 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 640 DAG size of output: 296 [2021-06-17 02:49:18,883 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 216 [2021-06-17 02:49:19,039 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 235 [2021-06-17 02:49:19,552 WARN L205 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 834 DAG size of output: 313 [2021-06-17 02:49:20,780 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1222 DAG size of output: 455 [2021-06-17 02:49:22,413 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 1424 DAG size of output: 577 [2021-06-17 02:49:22,614 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 277 [2021-06-17 02:49:22,848 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 283 [2021-06-17 02:49:23,006 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 273 [2021-06-17 02:49:23,261 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 201 [2021-06-17 02:49:23,957 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 239 [2021-06-17 02:49:24,141 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 285 [2021-06-17 02:49:24,524 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 219 [2021-06-17 02:49:24,694 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 198 [2021-06-17 02:49:25,533 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 247 [2021-06-17 02:49:25,775 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 311 [2021-06-17 02:49:26,857 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 186 [2021-06-17 02:49:27,078 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 201 [2021-06-17 02:49:27,583 WARN L205 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 400 [2021-06-17 02:49:28,258 WARN L205 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 592 DAG size of output: 483 [2021-06-17 02:49:29,037 WARN L205 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 720 DAG size of output: 507 [2021-06-17 02:49:30,511 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 251 [2021-06-17 02:49:30,676 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 272 [2021-06-17 02:49:30,932 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 392 DAG size of output: 285 [2021-06-17 02:49:31,230 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 288 [2021-06-17 02:49:31,970 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 226 [2021-06-17 02:49:32,431 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 208 [2021-06-17 02:49:32,711 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 282 [2021-06-17 02:49:33,272 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 216 [2021-06-17 02:49:33,659 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 466 DAG size of output: 311 [2021-06-17 02:49:34,020 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 521 DAG size of output: 354 [2021-06-17 02:49:35,006 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 217 [2021-06-17 02:49:35,173 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 217 [2021-06-17 02:49:35,841 WARN L205 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 451 [2021-06-17 02:49:36,664 WARN L205 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 723 DAG size of output: 463 [2021-06-17 02:49:38,101 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1029 DAG size of output: 672 [2021-06-17 02:49:40,362 WARN L205 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 1517 DAG size of output: 968 [2021-06-17 02:49:41,409 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 286 [2021-06-17 02:49:41,583 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 287 [2021-06-17 02:49:42,275 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 450 DAG size of output: 312 [2021-06-17 02:49:43,019 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 325 [2021-06-17 02:49:43,392 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 474 DAG size of output: 328 [2021-06-17 02:49:43,531 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 248 [2021-06-17 02:49:44,379 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 212 [2021-06-17 02:49:44,595 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 288 [2021-06-17 02:49:45,471 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 171 [2021-06-17 02:49:45,697 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2021-06-17 02:49:46,131 WARN L205 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 373 [2021-06-17 02:49:47,289 WARN L205 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 516 DAG size of output: 452 [2021-06-17 02:49:47,974 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 211 [2021-06-17 02:49:48,465 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 235 [2021-06-17 02:49:48,729 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 297 [2021-06-17 02:49:49,346 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 227 [2021-06-17 02:49:49,823 WARN L205 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 393 [2021-06-17 02:49:50,292 WARN L205 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 474 DAG size of output: 397 [2021-06-17 02:49:51,153 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 222 [2021-06-17 02:49:51,510 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 264 [2021-06-17 02:49:52,428 WARN L205 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 541 [2021-06-17 02:49:53,529 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 680 DAG size of output: 566 [2021-06-17 02:49:55,082 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1012 DAG size of output: 839 [2021-06-17 02:49:57,560 WARN L205 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 1410 DAG size of output: 1099 [2021-06-17 02:50:03,128 WARN L205 SmtUtils]: Spent 5.56 s on a formula simplification. DAG size of input: 2226 DAG size of output: 1704 [2021-06-17 02:50:10,954 WARN L205 SmtUtils]: Spent 7.81 s on a formula simplification. DAG size of input: 3213 DAG size of output: 1793 [2021-06-17 02:50:20,421 WARN L205 SmtUtils]: Spent 9.45 s on a formula simplification. DAG size of input: 3741 DAG size of output: 2301 [2021-06-17 02:50:30,971 WARN L205 SmtUtils]: Spent 10.53 s on a formula simplification. DAG size of input: 4093 DAG size of output: 2511 [2021-06-17 02:50:32,303 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 739 DAG size of output: 1024 [2021-06-17 02:50:33,190 WARN L205 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 826 [2021-06-17 02:50:33,411 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 281 [2021-06-17 02:50:33,705 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 294 [2021-06-17 02:50:34,495 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 138 [2021-06-17 02:50:35,017 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 243 [2021-06-17 02:50:35,574 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 284 [2021-06-17 02:50:36,272 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 243 [2021-06-17 02:50:36,397 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 243 [2021-06-17 02:50:36,937 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 212 [2021-06-17 02:50:37,478 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 243 [2021-06-17 02:50:37,731 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 311 [2021-06-17 02:50:38,026 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 311 [2021-06-17 02:50:38,554 WARN L205 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 457 DAG size of output: 428 [2021-06-17 02:50:39,371 WARN L205 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 566 [2021-06-17 02:50:40,188 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 156 [2021-06-17 02:50:40,382 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2021-06-17 02:50:41,413 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 239 [2021-06-17 02:50:41,664 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 291 [2021-06-17 02:50:42,193 WARN L205 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 392 [2021-06-17 02:50:43,744 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 859 DAG size of output: 794 [2021-06-17 02:50:45,437 WARN L205 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 1020 DAG size of output: 881 [2021-06-17 02:50:45,778 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 235 [2021-06-17 02:50:45,929 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 297 [2021-06-17 02:50:46,064 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 236 [2021-06-17 02:50:46,388 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 244 [2021-06-17 02:50:47,066 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 207 [2021-06-17 02:50:47,361 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 334 [2021-06-17 02:50:47,887 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 209 [2021-06-17 02:50:47,997 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 226 [2021-06-17 02:50:48,616 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 310 [2021-06-17 02:50:49,297 WARN L205 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 478 DAG size of output: 446 [2021-06-17 02:50:49,554 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 195 [2021-06-17 02:50:49,821 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 203 [2021-06-17 02:50:50,434 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 256 [2021-06-17 02:50:50,839 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 308 [2021-06-17 02:50:51,736 WARN L205 SmtUtils]: Spent 893.00 ms on a formula simplification. DAG size of input: 695 DAG size of output: 508 [2021-06-17 02:50:52,508 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 156 [2021-06-17 02:50:52,698 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 173 [2021-06-17 02:50:52,990 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 215 [2021-06-17 02:50:53,501 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 193 [2021-06-17 02:50:54,014 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 139 [2021-06-17 02:50:54,342 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 262 [2021-06-17 02:50:54,948 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 284 [2021-06-17 02:50:55,394 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 348 [2021-06-17 02:50:56,748 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 994 DAG size of output: 708 [2021-06-17 02:50:58,422 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 1148 DAG size of output: 774 [2021-06-17 02:51:01,991 WARN L205 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 1747 DAG size of output: 1412 [2021-06-17 02:51:02,103 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 253 [2021-06-17 02:51:02,261 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 259 [2021-06-17 02:51:02,375 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 256 [2021-06-17 02:51:02,946 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 189 [2021-06-17 02:51:03,284 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 190 [2021-06-17 02:51:04,319 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 203 [2021-06-17 02:51:04,533 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 249 [2021-06-17 02:51:04,732 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 321 [2021-06-17 02:51:04,917 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 260 [2021-06-17 02:51:05,229 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 192 [2021-06-17 02:51:05,471 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 203 [2021-06-17 02:51:05,618 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 249 [2021-06-17 02:51:05,805 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 271 [2021-06-17 02:51:06,088 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 251 [2021-06-17 02:51:06,550 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 251 [2021-06-17 02:51:06,765 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 274 [2021-06-17 02:51:07,058 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 321 [2021-06-17 02:51:07,209 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 238 [2021-06-17 02:51:07,889 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 253 [2021-06-17 02:51:08,281 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 213 [2021-06-17 02:51:08,462 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 242 [2021-06-17 02:51:08,773 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 265 [2021-06-17 02:51:09,201 WARN L205 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 330 [2021-06-17 02:51:09,862 WARN L205 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 911 DAG size of output: 360 [2021-06-17 02:51:09,995 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 245 [2021-06-17 02:51:10,949 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 225 [2021-06-17 02:51:11,994 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 261 [2021-06-17 02:51:12,203 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 283 [2021-06-17 02:51:12,445 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 283 [2021-06-17 02:51:12,787 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 504 DAG size of output: 357 [2021-06-17 02:51:13,329 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 560 DAG size of output: 385 [2021-06-17 02:51:14,364 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 218 [2021-06-17 02:51:14,669 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 242 [2021-06-17 02:51:15,328 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 743 DAG size of output: 350 [2021-06-17 02:51:16,937 WARN L205 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 1315 DAG size of output: 518 [2021-06-17 02:51:23,635 WARN L205 SmtUtils]: Spent 6.69 s on a formula simplification. DAG size of input: 2765 DAG size of output: 1722 [2021-06-17 02:51:29,742 WARN L205 SmtUtils]: Spent 6.09 s on a formula simplification. DAG size of input: 2888 DAG size of output: 1777 [2021-06-17 02:51:37,642 WARN L205 SmtUtils]: Spent 7.88 s on a formula simplification. DAG size of input: 3423 DAG size of output: 2286 [2021-06-17 02:51:47,133 WARN L205 SmtUtils]: Spent 9.47 s on a formula simplification. DAG size of input: 3768 DAG size of output: 2589 [2021-06-17 02:51:47,798 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 208 [2021-06-17 02:51:48,175 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 242 [2021-06-17 02:51:48,987 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 181 [2021-06-17 02:51:49,154 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 227 [2021-06-17 02:51:49,345 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 257 [2021-06-17 02:51:50,437 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 255 [2021-06-17 02:51:50,596 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 268 [2021-06-17 02:51:50,776 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 266 [2021-06-17 02:51:51,054 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 348 [2021-06-17 02:51:52,057 WARN L205 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 488 DAG size of output: 411 [2021-06-17 02:51:52,655 WARN L205 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 475 [2021-06-17 02:51:53,413 WARN L205 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 616 DAG size of output: 486 [2021-06-17 02:51:54,494 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 626 DAG size of output: 495 [2021-06-17 02:51:56,167 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 223 [2021-06-17 02:51:56,308 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 237 [2021-06-17 02:51:56,474 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 235 [2021-06-17 02:51:56,741 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 303 [2021-06-17 02:51:57,467 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 446 DAG size of output: 350 [2021-06-17 02:51:58,180 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 183 [2021-06-17 02:51:58,296 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 194 [2021-06-17 02:51:58,730 WARN L205 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 538 DAG size of output: 386 [2021-06-17 02:51:59,309 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 550 DAG size of output: 399 [2021-06-17 02:52:00,946 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 1065 DAG size of output: 745 [2021-06-17 02:52:02,741 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1077 DAG size of output: 744 [2021-06-17 02:52:04,874 WARN L205 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 1098 DAG size of output: 750 [2021-06-17 02:52:17,684 WARN L205 SmtUtils]: Spent 12.80 s on a formula simplification. DAG size of input: 4707 DAG size of output: 3202 [2021-06-17 02:52:42,985 WARN L205 SmtUtils]: Spent 25.28 s on a formula simplification. DAG size of input: 6894 DAG size of output: 4324 [2021-06-17 02:53:11,143 WARN L205 SmtUtils]: Spent 28.12 s on a formula simplification. DAG size of input: 7322 DAG size of output: 4477 [2021-06-17 02:53:12,388 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 552 DAG size of output: 317 [2021-06-17 02:53:12,562 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 343 [2021-06-17 02:53:13,890 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 243 [2021-06-17 02:53:14,065 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 378 [2021-06-17 02:53:14,268 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 629 DAG size of output: 404 [2021-06-17 02:53:14,695 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 1107 DAG size of output: 627 [2021-06-17 02:53:15,263 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 1134 DAG size of output: 654 [2021-06-17 02:53:46,735 WARN L205 SmtUtils]: Spent 31.46 s on a formula simplification. DAG size of input: 8002 DAG size of output: 4954 [2021-06-17 02:54:22,805 WARN L205 SmtUtils]: Spent 36.03 s on a formula simplification. DAG size of input: 8427 DAG size of output: 5282 [2021-06-17 02:54:59,020 WARN L205 SmtUtils]: Spent 36.16 s on a formula simplification. DAG size of input: 8427 DAG size of output: 5282 [2021-06-17 02:55:40,084 WARN L205 SmtUtils]: Spent 41.04 s on a formula simplification. DAG size of input: 8440 DAG size of output: 5295 [2021-06-17 02:56:40,981 WARN L205 SmtUtils]: Spent 1.01 m on a formula simplification. DAG size of input: 5297 DAG size of output: 7538 [2021-06-17 02:57:41,768 WARN L205 SmtUtils]: Spent 1.01 m on a formula simplification. DAG size of input: 4323 DAG size of output: 6374 [2021-06-17 02:58:45,987 WARN L205 SmtUtils]: Spent 1.07 m on a formula simplification. DAG size of input: 3823 DAG size of output: 4222 [2021-06-17 02:58:54,320 WARN L205 SmtUtils]: Spent 8.31 s on a formula simplification. DAG size of input: 1942 DAG size of output: 1778 [2021-06-17 02:59:08,240 WARN L205 SmtUtils]: Spent 13.91 s on a formula simplification. DAG size of input: 1680 DAG size of output: 1578 [2021-06-17 02:59:08,534 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 1450 [2021-06-17 02:59:17,675 WARN L205 SmtUtils]: Spent 9.13 s on a formula simplification. DAG size of input: 1347 DAG size of output: 1954 [2021-06-17 02:59:18,214 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 1150 DAG size of output: 1150 [2021-06-17 02:59:18,643 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 1034 DAG size of output: 1034 [2021-06-17 02:59:23,815 WARN L205 SmtUtils]: Spent 4.61 s on a formula simplification. DAG size of input: 981 DAG size of output: 1395 [2021-06-17 02:59:23,931 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 872 [2021-06-17 02:59:24,050 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 595 DAG size of output: 595 [2021-06-17 02:59:25,057 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 230 [2021-06-17 02:59:25,201 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 396 DAG size of output: 272 [2021-06-17 02:59:25,666 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 331 [2021-06-17 02:59:26,005 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 377 [2021-06-17 02:59:27,171 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 778 DAG size of output: 472 [2021-06-17 02:59:27,289 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 535 [2021-06-17 02:59:27,392 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 208 [2021-06-17 02:59:27,823 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 187 [2021-06-17 02:59:28,203 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 266 [2021-06-17 02:59:29,390 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 289 [2021-06-17 02:59:29,671 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 337 [2021-06-17 02:59:30,089 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 399 [2021-06-17 02:59:30,616 WARN L205 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 752 DAG size of output: 473 [2021-06-17 02:59:31,926 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1245 DAG size of output: 754 [2021-06-17 02:59:32,144 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 778 DAG size of output: 778 [2021-06-17 02:59:32,253 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 509 DAG size of output: 509 [2021-06-17 02:59:32,603 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 436 DAG size of output: 436 [2021-06-17 02:59:33,505 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 221 [2021-06-17 02:59:33,662 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 244 [2021-06-17 02:59:33,824 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 279 [2021-06-17 02:59:34,447 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 549 DAG size of output: 355 [2021-06-17 02:59:34,817 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 624 DAG size of output: 427 [2021-06-17 02:59:36,684 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 216 [2021-06-17 02:59:37,309 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 294 [2021-06-17 02:59:37,635 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 518 DAG size of output: 361 [2021-06-17 02:59:38,074 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 710 DAG size of output: 434 [2021-06-17 02:59:39,006 WARN L205 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 1001 DAG size of output: 614 [2021-06-17 02:59:41,975 WARN L205 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 1979 DAG size of output: 1146 [2021-06-17 02:59:45,536 WARN L205 SmtUtils]: Spent 3.55 s on a formula simplification. DAG size of input: 2136 DAG size of output: 1241 [2021-06-17 02:59:49,079 WARN L205 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 2252 DAG size of output: 1326 [2021-06-17 02:59:54,801 WARN L205 SmtUtils]: Spent 5.70 s on a formula simplification. DAG size of input: 3080 DAG size of output: 1978 [2021-06-17 02:59:55,206 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 294 [2021-06-17 02:59:55,412 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 228 [2021-06-17 02:59:56,089 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 217 [2021-06-17 02:59:56,834 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 227 [2021-06-17 02:59:57,097 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 301 [2021-06-17 02:59:57,505 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 547 DAG size of output: 370 [2021-06-17 03:00:04,189 WARN L205 SmtUtils]: Spent 6.68 s on a formula simplification. DAG size of input: 3478 DAG size of output: 2225 [2021-06-17 03:00:04,874 WARN L205 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 431 [2021-06-17 03:00:05,601 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 225 [2021-06-17 03:00:05,754 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 243 [2021-06-17 03:00:05,916 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 237 [2021-06-17 03:00:06,146 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 247 [2021-06-17 03:00:06,271 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 217 [2021-06-17 03:00:07,011 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 238 [2021-06-17 03:00:07,186 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 241 [2021-06-17 03:00:07,350 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 266 [2021-06-17 03:00:08,114 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 241 [2021-06-17 03:00:08,282 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 397 DAG size of output: 310 [2021-06-17 03:00:08,517 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 316 [2021-06-17 03:00:08,873 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 411 [2021-06-17 03:00:09,622 WARN L205 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 797 DAG size of output: 543 [2021-06-17 03:00:10,573 WARN L205 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 909 DAG size of output: 604 [2021-06-17 03:00:19,172 WARN L205 SmtUtils]: Spent 8.59 s on a formula simplification. DAG size of input: 4146 DAG size of output: 2641 [2021-06-17 03:00:28,423 WARN L205 SmtUtils]: Spent 9.23 s on a formula simplification. DAG size of input: 4264 DAG size of output: 2757 [2021-06-17 03:00:48,626 WARN L205 SmtUtils]: Spent 20.17 s on a formula simplification. DAG size of input: 6395 DAG size of output: 4339 [2021-06-17 03:01:16,811 WARN L205 SmtUtils]: Spent 28.14 s on a formula simplification. DAG size of input: 4239 DAG size of output: 3919 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown