/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 20:59:29,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 20:59:29,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 20:59:29,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 20:59:29,102 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf [2021-02-19 20:59:29,132 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 20:59:29,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 20:59:29,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 20:59:29,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 20:59:29,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 20:59:29,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 20:59:29,135 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 20:59:29,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 20:59:29,135 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 20:59:29,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 20:59:29,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 20:59:29,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 20:59:29,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 20:59:29,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 20:59:29,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 20:59:29,136 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 20:59:29,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 20:59:29,136 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 20:59:29,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 20:59:29,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 20:59:29,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 20:59:29,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 20:59:29,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 20:59:29,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 20:59:29,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 20:59:29,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 20:59:29,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 20:59:29,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 20:59:29,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 20:59:29,138 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 20:59:29,138 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 20:59:29,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 20:59:29,138 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-19 20:59:29,138 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 20:59:29,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 20:59:29,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 20:59:29,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 20:59:29,415 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 20:59:29,416 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 20:59:29,417 INFO L432 ainManager$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 [2021-02-19 20:59:29,417 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-2.wvr.bpl' [2021-02-19 20:59:29,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 20:59:29,453 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 20:59:29,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 20:59:29,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 20:59:29,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 20:59:29,464 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 19.02 08:59:29" (1/1) ... [2021-02-19 20:59:29,469 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 19.02 08:59:29" (1/1) ... [2021-02-19 20:59:29,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 20:59:29,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 20:59:29,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 20:59:29,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 20:59:29,483 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 19.02 08:59:29" (1/1) ... [2021-02-19 20:59:29,483 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 19.02 08:59:29" (1/1) ... [2021-02-19 20:59:29,484 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 19.02 08:59:29" (1/1) ... [2021-02-19 20:59:29,485 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 19.02 08:59:29" (1/1) ... [2021-02-19 20:59:29,487 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 19.02 08:59:29" (1/1) ... [2021-02-19 20:59:29,489 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 19.02 08:59:29" (1/1) ... [2021-02-19 20:59:29,489 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 19.02 08:59:29" (1/1) ... [2021-02-19 20:59:29,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 20:59:29,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 20:59:29,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 20:59:29,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 20:59:29,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:59:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 20:59:29,551 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 20:59:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 20:59:29,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 20:59:29,552 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 20:59:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 20:59:29,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 20:59:29,552 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 20:59:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 20:59:29,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 20:59:29,553 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 20:59:29,710 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 20:59:29,710 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-19 20:59:29,711 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-02-19 20:59:29,712 INFO L202 PluginConnector]: Adding new model unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 08:59:29 BoogieIcfgContainer [2021-02-19 20:59:29,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 20:59:29,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 20:59:29,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 20:59:29,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 20:59:29,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 08:59:29" (1/2) ... [2021-02-19 20:59:29,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723a8679 and model type unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 08:59:29, skipping insertion in model container [2021-02-19 20:59:29,716 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 19.02 08:59:29" (2/2) ... [2021-02-19 20:59:29,717 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-2.wvr.bpl [2021-02-19 20:59:29,720 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 20:59:29,721 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 20:59:29,723 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 20:59:29,723 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 20:59:29,742 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-02-19 20:59:29,753 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-02-19 20:59:29,782 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 20:59:29,783 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 20:59:29,783 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 20:59:29,783 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 20:59:29,783 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 20:59:29,783 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 20:59:29,783 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 20:59:29,783 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 20:59:29,802 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:29,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:29,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1288522295, now seen corresponding path program 1 times [2021-02-19 20:59:29,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:29,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661966934] [2021-02-19 20:59:29,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:29,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:29,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661966934] [2021-02-19 20:59:29,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 20:59:29,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 20:59:29,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598880802] [2021-02-19 20:59:29,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 20:59:29,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:29,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 20:59:29,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 20:59:29,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:29,985 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:29,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:59:29,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:30,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:30,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 20:59:30,060 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:30,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:30,061 INFO L82 PathProgramCache]: Analyzing trace with hash 455364755, now seen corresponding path program 1 times [2021-02-19 20:59:30,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:30,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856498259] [2021-02-19 20:59:30,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:30,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856498259] [2021-02-19 20:59:30,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715417573] [2021-02-19 20:59:30,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:30,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 13 conjunts are in the unsatisfiable core [2021-02-19 20:59:30,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:30,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-02-19 20:59:30,243 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:30,245 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:30,245 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:30,245 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-02-19 20:59:30,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:30,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:30,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-02-19 20:59:30,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710646777] [2021-02-19 20:59:30,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-19 20:59:30,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:30,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-19 20:59:30,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-19 20:59:30,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:30,256 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:30,256 INFO L481 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) [2021-02-19 20:59:30,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:30,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:30,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:30,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:30,498 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:30,498 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:30,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:30,499 INFO L82 PathProgramCache]: Analyzing trace with hash 397284791, now seen corresponding path program 2 times [2021-02-19 20:59:30,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:30,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409826305] [2021-02-19 20:59:30,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:30,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:30,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409826305] [2021-02-19 20:59:30,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636766463] [2021-02-19 20:59:30,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:30,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 20:59:30,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:30,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-02-19 20:59:30,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:30,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:30,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:30,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-02-19 20:59:30,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178585025] [2021-02-19 20:59:30,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 20:59:30,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:30,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 20:59:30,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 20:59:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:30,636 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:30,636 INFO L481 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) [2021-02-19 20:59:30,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:30,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:30,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:30,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:30,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:30,878 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:30,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:30,879 INFO L82 PathProgramCache]: Analyzing trace with hash 256538088, now seen corresponding path program 1 times [2021-02-19 20:59:30,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:30,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880834933] [2021-02-19 20:59:30,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:30,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:30,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880834933] [2021-02-19 20:59:30,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761415774] [2021-02-19 20:59:30,938 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 [2021-02-19 20:59:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:30,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 20 conjunts are in the unsatisfiable core [2021-02-19 20:59:30,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:31,083 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:31,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 18 [2021-02-19 20:59:31,086 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:31,087 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:31,088 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:31,088 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:3 [2021-02-19 20:59:31,094 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:31,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:31,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-02-19 20:59:31,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159052964] [2021-02-19 20:59:31,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-19 20:59:31,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:31,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-19 20:59:31,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-02-19 20:59:31,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:31,096 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:31,096 INFO L481 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) [2021-02-19 20:59:31,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:31,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:31,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:31,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:31,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:31,384 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:31,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:31,385 INFO L82 PathProgramCache]: Analyzing trace with hash 276267532, now seen corresponding path program 2 times [2021-02-19 20:59:31,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:31,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750407294] [2021-02-19 20:59:31,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:31,493 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:31,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750407294] [2021-02-19 20:59:31,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582146009] [2021-02-19 20:59:31,494 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 [2021-02-19 20:59:31,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 20:59:31,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:31,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 22 conjunts are in the unsatisfiable core [2021-02-19 20:59:31,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:31,662 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:31,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-02-19 20:59:31,679 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:31,682 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:31,683 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:31,683 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:3 [2021-02-19 20:59:31,689 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:31,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:31,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-02-19 20:59:31,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722403193] [2021-02-19 20:59:31,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-19 20:59:31,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:31,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-19 20:59:31,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-02-19 20:59:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:31,693 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:31,693 INFO L481 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) [2021-02-19 20:59:31,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:31,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:31,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:31,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:31,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:31,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:31,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:31,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:31,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:31,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:31,982 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:31,982 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:31,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:31,982 INFO L82 PathProgramCache]: Analyzing trace with hash 887880296, now seen corresponding path program 3 times [2021-02-19 20:59:31,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:31,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674709175] [2021-02-19 20:59:31,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:32,030 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:32,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674709175] [2021-02-19 20:59:32,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526882742] [2021-02-19 20:59:32,030 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) [2021-02-19 20:59:32,057 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-02-19 20:59:32,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:32,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-02-19 20:59:32,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:32,105 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:32,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:32,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-02-19 20:59:32,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475362409] [2021-02-19 20:59:32,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 20:59:32,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:32,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 20:59:32,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-02-19 20:59:32,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:32,106 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:32,106 INFO L481 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) [2021-02-19 20:59:32,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:32,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:32,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:32,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:32,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:32,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:32,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:32,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:32,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:32,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:32,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:32,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:32,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:32,386 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:32,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:32,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1714870441, now seen corresponding path program 4 times [2021-02-19 20:59:32,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:32,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716601392] [2021-02-19 20:59:32,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:32,510 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:32,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716601392] [2021-02-19 20:59:32,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852627278] [2021-02-19 20:59:32,511 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 [2021-02-19 20:59:32,529 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 20:59:32,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:32,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 29 conjunts are in the unsatisfiable core [2021-02-19 20:59:32,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:32,694 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:32,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-02-19 20:59:32,719 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:32,720 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:32,721 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:32,721 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-02-19 20:59:32,726 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:32,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:32,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-02-19 20:59:32,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320129010] [2021-02-19 20:59:32,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-19 20:59:32,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:32,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-19 20:59:32,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-02-19 20:59:32,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:32,727 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:32,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:59:32,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:32,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:32,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:32,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:32,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:32,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:32,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:32,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:32,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:32,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:32,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:32,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:32,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:32,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:33,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-02-19 20:59:33,066 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:33,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:33,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1929443507, now seen corresponding path program 5 times [2021-02-19 20:59:33,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:33,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959815898] [2021-02-19 20:59:33,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:33,170 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:33,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959815898] [2021-02-19 20:59:33,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239466593] [2021-02-19 20:59:33,170 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) [2021-02-19 20:59:33,201 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-02-19 20:59:33,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:33,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 31 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:33,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:33,430 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:33,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 27 treesize of output 99 [2021-02-19 20:59:33,513 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:33,514 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:33,514 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:33,514 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:3 [2021-02-19 20:59:33,519 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:33,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:33,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-02-19 20:59:33,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516682118] [2021-02-19 20:59:33,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-19 20:59:33,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:33,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-19 20:59:33,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-02-19 20:59:33,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:33,521 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:33,521 INFO L481 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) [2021-02-19 20:59:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:33,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:33,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:33,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:33,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:33,898 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-02-19 20:59:33,899 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:33,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:33,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1060941097, now seen corresponding path program 6 times [2021-02-19 20:59:33,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:33,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902968420] [2021-02-19 20:59:33,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:33,959 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:33,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902968420] [2021-02-19 20:59:33,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888095678] [2021-02-19 20:59:33,960 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) [2021-02-19 20:59:33,989 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-02-19 20:59:33,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:33,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 10 conjunts are in the unsatisfiable core [2021-02-19 20:59:33,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:34,046 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:34,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:34,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-02-19 20:59:34,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324937738] [2021-02-19 20:59:34,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-19 20:59:34,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:34,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-19 20:59:34,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-19 20:59:34,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:34,050 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:34,050 INFO L481 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) [2021-02-19 20:59:34,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:34,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:34,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:34,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:34,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:34,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:34,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:34,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:34,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:34,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:34,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:34,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:34,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:34,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:34,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:34,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:34,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:34,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:34,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-02-19 20:59:34,374 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:34,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:34,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1998791480, now seen corresponding path program 7 times [2021-02-19 20:59:34,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:34,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258291943] [2021-02-19 20:59:34,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:34,502 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:34,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258291943] [2021-02-19 20:59:34,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029923511] [2021-02-19 20:59:34,502 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 [2021-02-19 20:59:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:34,530 WARN L261 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 38 conjunts are in the unsatisfiable core [2021-02-19 20:59:34,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:34,817 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:34,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 31 treesize of output 142 [2021-02-19 20:59:34,986 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:34,987 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:34,989 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:34,989 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:3 [2021-02-19 20:59:34,995 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:34,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:34,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-02-19 20:59:34,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092094252] [2021-02-19 20:59:34,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-19 20:59:34,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:34,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-19 20:59:34,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-02-19 20:59:34,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:34,999 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:34,999 INFO L481 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) [2021-02-19 20:59:34,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:34,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:34,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:34,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:34,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:35,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:35,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:35,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:35,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:35,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:35,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:35,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:35,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:35,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:35,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:35,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:35,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:35,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:35,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:35,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 20:59:35,402 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-02-19 20:59:35,402 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:35,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:35,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1869692396, now seen corresponding path program 8 times [2021-02-19 20:59:35,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:35,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645564701] [2021-02-19 20:59:35,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:35,532 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:35,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645564701] [2021-02-19 20:59:35,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502824411] [2021-02-19 20:59:35,532 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) [2021-02-19 20:59:35,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 20:59:35,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:35,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 40 conjunts are in the unsatisfiable core [2021-02-19 20:59:35,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:35,920 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:35,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 35 treesize of output 193 [2021-02-19 20:59:36,176 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:36,177 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:36,177 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:36,177 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:3 [2021-02-19 20:59:36,184 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:36,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:36,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-02-19 20:59:36,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124896420] [2021-02-19 20:59:36,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-19 20:59:36,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:36,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-19 20:59:36,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-02-19 20:59:36,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:36,185 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:36,185 INFO L481 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) [2021-02-19 20:59:36,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:36,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:36,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:36,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:36,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:36,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:36,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:36,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:36,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:36,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 20:59:36,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 20:59:36,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:36,638 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable109 [2021-02-19 20:59:36,638 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:36,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:36,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1533608264, now seen corresponding path program 9 times [2021-02-19 20:59:36,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:36,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942055359] [2021-02-19 20:59:36,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:36,714 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:36,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942055359] [2021-02-19 20:59:36,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754982841] [2021-02-19 20:59:36,714 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 [2021-02-19 20:59:36,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-02-19 20:59:36,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:36,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2021-02-19 20:59:36,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:36,786 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:36,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:36,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-02-19 20:59:36,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894121857] [2021-02-19 20:59:36,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-19 20:59:36,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:36,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-19 20:59:36,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-02-19 20:59:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:36,787 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:36,787 INFO L481 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) [2021-02-19 20:59:36,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:36,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:36,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:36,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:36,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:36,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:36,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:36,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:36,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:36,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 20:59:36,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:36,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 20:59:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:36,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 20:59:37,134 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:37,134 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:37,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:37,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1122827383, now seen corresponding path program 10 times [2021-02-19 20:59:37,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:37,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212011253] [2021-02-19 20:59:37,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:37,323 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:37,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212011253] [2021-02-19 20:59:37,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036458507] [2021-02-19 20:59:37,323 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 [2021-02-19 20:59:37,346 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 20:59:37,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:37,347 WARN L261 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 47 conjunts are in the unsatisfiable core [2021-02-19 20:59:37,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:37,821 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:37,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 39 treesize of output 252 [2021-02-19 20:59:38,490 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:38,491 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:38,492 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:38,492 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-02-19 20:59:38,498 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:38,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:38,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-02-19 20:59:38,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555350723] [2021-02-19 20:59:38,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-19 20:59:38,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:38,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-19 20:59:38,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2021-02-19 20:59:38,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:38,500 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:38,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:59:38,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:38,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:38,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:38,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:38,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:38,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:38,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:38,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:38,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:38,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 20:59:38,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:38,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 20:59:38,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:38,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 20:59:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 20:59:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 20:59:39,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable198 [2021-02-19 20:59:39,042 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:39,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:39,042 INFO L82 PathProgramCache]: Analyzing trace with hash 268523731, now seen corresponding path program 11 times [2021-02-19 20:59:39,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:39,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833000392] [2021-02-19 20:59:39,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:39,205 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:39,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833000392] [2021-02-19 20:59:39,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371781909] [2021-02-19 20:59:39,206 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 [2021-02-19 20:59:39,242 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-02-19 20:59:39,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:39,243 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 49 conjunts are in the unsatisfiable core [2021-02-19 20:59:39,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:39,743 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-02-19 20:59:39,744 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:39,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 36 case distinctions, treesize of input 43 treesize of output 319 [2021-02-19 20:59:41,198 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:41,199 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:41,200 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:41,200 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:3 [2021-02-19 20:59:41,206 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:41,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:41,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-02-19 20:59:41,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058685343] [2021-02-19 20:59:41,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-19 20:59:41,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:41,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-19 20:59:41,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-02-19 20:59:41,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:41,208 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:41,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:59:41,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:41,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:41,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:41,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:41,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:41,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:41,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:41,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:41,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:41,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 20:59:41,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:41,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 20:59:41,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 20:59:41,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:41,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 20:59:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 20:59:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 20:59:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 20:59:41,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 20:59:41,808 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:41,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:41,808 INFO L82 PathProgramCache]: Analyzing trace with hash -445085705, now seen corresponding path program 12 times [2021-02-19 20:59:41,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:41,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161419443] [2021-02-19 20:59:41,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:41,907 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:41,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161419443] [2021-02-19 20:59:41,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079521504] [2021-02-19 20:59:41,907 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 [2021-02-19 20:59:41,930 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-02-19 20:59:41,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:41,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2021-02-19 20:59:41,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:41,989 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 45 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:41,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:41,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-02-19 20:59:41,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998586757] [2021-02-19 20:59:41,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-19 20:59:41,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:41,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-19 20:59:41,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-02-19 20:59:41,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:41,991 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:41,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.5) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:59:41,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:41,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:41,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:41,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:41,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:41,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:41,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:41,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:41,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:41,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 20:59:41,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:41,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 20:59:41,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 20:59:41,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 20:59:41,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:42,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:42,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:42,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:42,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 20:59:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 20:59:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 20:59:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 20:59:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 20:59:42,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable970 [2021-02-19 20:59:42,396 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:42,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:42,396 INFO L82 PathProgramCache]: Analyzing trace with hash -87143512, now seen corresponding path program 13 times [2021-02-19 20:59:42,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:42,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998677920] [2021-02-19 20:59:42,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:42,647 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:42,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998677920] [2021-02-19 20:59:42,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340655937] [2021-02-19 20:59:42,647 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 [2021-02-19 20:59:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:42,671 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 56 conjunts are in the unsatisfiable core [2021-02-19 20:59:42,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:43,375 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-02-19 20:59:43,376 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:43,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 19 new quantified variables, introduced 45 case distinctions, treesize of input 47 treesize of output 394 [2021-02-19 20:59:47,163 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 1085 DAG size of output: 603 [2021-02-19 20:59:47,304 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 1478 DAG size of output: 701 [2021-02-19 20:59:47,471 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 1478 DAG size of output: 701 [2021-02-19 20:59:47,628 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 1483 DAG size of output: 698 [2021-02-19 20:59:47,792 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 700 DAG size of output: 888 [2021-02-19 20:59:51,220 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 2257 DAG size of output: 1208 [2021-02-19 20:59:51,398 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 2257 DAG size of output: 1208 [2021-02-19 20:59:51,597 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 2259 DAG size of output: 1208 [2021-02-19 20:59:52,166 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 20:59:52,167 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:52,168 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 20:59:52,168 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:3 [2021-02-19 20:59:52,174 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:52,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 20:59:52,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2021-02-19 20:59:52,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213363925] [2021-02-19 20:59:52,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-02-19 20:59:52,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 20:59:52,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-02-19 20:59:52,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1241, Unknown=0, NotChecked=0, Total=1332 [2021-02-19 20:59:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:52,176 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 20:59:52,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 36 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 20:59:52,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 20:59:52,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:52,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 20:59:52,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 20:59:52,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 20:59:52,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 20:59:52,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:52,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:52,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 20:59:52,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 20:59:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 20:59:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 20:59:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 20:59:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 20:59:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 20:59:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 20:59:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 20:59:52,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable971 [2021-02-19 20:59:52,866 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 20:59:52,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 20:59:52,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1328955852, now seen corresponding path program 14 times [2021-02-19 20:59:52,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 20:59:52,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590294924] [2021-02-19 20:59:52,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 20:59:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 20:59:53,079 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 20:59:53,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590294924] [2021-02-19 20:59:53,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075762091] [2021-02-19 20:59:53,079 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 [2021-02-19 20:59:53,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 20:59:53,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 20:59:53,101 WARN L261 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 58 conjunts are in the unsatisfiable core [2021-02-19 20:59:53,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 20:59:53,810 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2021-02-19 20:59:53,810 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 20:59:53,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 21 new quantified variables, introduced 55 case distinctions, treesize of input 51 treesize of output 477 [2021-02-19 20:59:58,619 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1046 DAG size of output: 420 [2021-02-19 21:00:00,917 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 1011 DAG size of output: 681 [2021-02-19 21:00:02,734 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 849 DAG size of output: 705 [2021-02-19 21:00:02,984 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 1470 DAG size of output: 1188 [2021-02-19 21:00:03,266 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 1619 DAG size of output: 1227 [2021-02-19 21:00:03,609 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 2285 DAG size of output: 1225 [2021-02-19 21:00:04,019 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 2817 DAG size of output: 1738 [2021-02-19 21:00:05,831 WARN L202 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 3264 DAG size of output: 2055 [2021-02-19 21:00:06,372 WARN L202 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 3617 DAG size of output: 2277 [2021-02-19 21:00:08,626 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1039 DAG size of output: 765 [2021-02-19 21:00:10,389 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 775 [2021-02-19 21:00:10,659 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 1491 DAG size of output: 1304 [2021-02-19 21:00:13,510 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 2089 DAG size of output: 1539 [2021-02-19 21:00:13,920 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 2213 DAG size of output: 1647 [2021-02-19 21:00:14,829 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 2674 DAG size of output: 1767 [2021-02-19 21:00:15,323 WARN L202 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 3209 DAG size of output: 2284 [2021-02-19 21:00:15,870 WARN L202 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 3555 DAG size of output: 2587 [2021-02-19 21:00:18,514 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 763 [2021-02-19 21:00:18,656 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 1077 DAG size of output: 756 [2021-02-19 21:00:18,806 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 1098 DAG size of output: 774 [2021-02-19 21:00:19,545 WARN L202 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 4497 DAG size of output: 3222 [2021-02-19 21:00:20,840 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 6099 DAG size of output: 4037 [2021-02-19 21:00:22,223 WARN L202 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 6527 DAG size of output: 4178 [2021-02-19 21:00:24,897 WARN L202 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 7214 DAG size of output: 4671 [2021-02-19 21:00:26,495 WARN L202 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 7644 DAG size of output: 5009 [2021-02-19 21:00:28,086 WARN L202 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 7644 DAG size of output: 5009 [2021-02-19 21:00:29,811 WARN L202 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 7657 DAG size of output: 5022 [2021-02-19 21:00:31,815 WARN L202 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 5024 DAG size of output: 6951 [2021-02-19 21:00:33,742 WARN L202 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 4225 DAG size of output: 5817 [2021-02-19 21:00:34,845 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 3936 DAG size of output: 3639 [2021-02-19 21:00:36,643 WARN L202 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 3441 DAG size of output: 4915 [2021-02-19 21:00:37,769 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 3369 DAG size of output: 3400 [2021-02-19 21:00:39,624 WARN L202 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 3164 DAG size of output: 4663 [2021-02-19 21:00:40,446 WARN L202 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 2817 DAG size of output: 2759 [2021-02-19 21:00:42,297 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 2568 DAG size of output: 3483 [2021-02-19 21:00:43,424 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 2279 DAG size of output: 3278 [2021-02-19 21:00:43,812 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 1929 DAG size of output: 1913 [2021-02-19 21:00:44,167 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 1754 DAG size of output: 1754 [2021-02-19 21:00:44,486 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 1642 DAG size of output: 1642 [2021-02-19 21:00:44,677 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 1347 DAG size of output: 1347 [2021-02-19 21:00:45,429 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 935 [2021-02-19 21:00:45,644 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 818 [2021-02-19 21:00:46,915 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2021-02-19 21:00:47,028 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 877 DAG size of output: 877 [2021-02-19 21:00:48,355 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1715 DAG size of output: 767 [2021-02-19 21:00:48,832 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 2020 DAG size of output: 916 [2021-02-19 21:00:49,003 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 2176 DAG size of output: 1030 [2021-02-19 21:00:49,574 WARN L202 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 2193 DAG size of output: 2186 [2021-02-19 21:00:50,108 WARN L202 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 2032 DAG size of output: 2032 [2021-02-19 21:00:50,767 WARN L202 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 1930 DAG size of output: 1930 [2021-02-19 21:00:50,978 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 1241 DAG size of output: 1241 [2021-02-19 21:00:51,162 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 1080 DAG size of output: 1080 [2021-02-19 21:00:51,331 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 844 DAG size of output: 844 [2021-02-19 21:00:51,453 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 674 DAG size of output: 674 [2021-02-19 21:00:53,053 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 1545 DAG size of output: 1545 [2021-02-19 21:00:53,252 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2021-02-19 21:00:53,552 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 1005 DAG size of output: 1005 [2021-02-19 21:00:53,865 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 835 [2021-02-19 21:00:53,998 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 814 DAG size of output: 814 [2021-02-19 21:00:54,123 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 769 [2021-02-19 21:00:55,677 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 1954 DAG size of output: 803 [2021-02-19 21:00:55,852 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 2119 DAG size of output: 870 [2021-02-19 21:00:56,033 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 2270 DAG size of output: 981 [2021-02-19 21:00:56,388 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 3632 DAG size of output: 1557 [2021-02-19 21:00:56,822 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 1827 DAG size of output: 1803 [2021-02-19 21:00:57,554 WARN L202 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 1697 DAG size of output: 2477 [2021-02-19 21:00:57,778 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 1218 DAG size of output: 1186 [2021-02-19 21:00:57,886 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 772 DAG size of output: 772 [2021-02-19 21:00:58,954 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 980 DAG size of output: 980 [2021-02-19 21:01:00,335 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1147 DAG size of output: 680 [2021-02-19 21:01:00,714 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 1632 DAG size of output: 1621 [2021-02-19 21:01:00,887 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 1085 DAG size of output: 1085 [2021-02-19 21:01:01,180 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 955 DAG size of output: 955 [2021-02-19 21:01:01,310 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 775 DAG size of output: 775 [2021-02-19 21:01:01,420 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 640 DAG size of output: 640 [2021-02-19 21:01:02,685 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 1308 DAG size of output: 1304 [2021-02-19 21:01:02,845 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 1001 DAG size of output: 1001 [2021-02-19 21:01:03,092 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 885 DAG size of output: 885 [2021-02-19 21:01:03,361 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 750 DAG size of output: 750 [2021-02-19 21:01:03,483 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 730 DAG size of output: 730 [2021-02-19 21:01:03,591 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 705 DAG size of output: 705 [2021-02-19 21:01:04,791 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1579 DAG size of output: 791 [2021-02-19 21:01:05,023 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 2376 DAG size of output: 1159 [2021-02-19 21:01:05,674 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 2677 DAG size of output: 1277 [2021-02-19 21:01:06,321 WARN L202 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 5640 DAG size of output: 2351 [2021-02-19 21:01:07,006 WARN L202 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 5962 DAG size of output: 2552 [2021-02-19 21:01:08,265 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 8298 DAG size of output: 3947 [2021-02-19 21:01:10,122 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1301 DAG size of output: 820 [2021-02-19 21:01:11,505 WARN L202 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 9172 DAG size of output: 4422 [2021-02-19 21:01:12,695 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 10737 DAG size of output: 3616 [2021-02-19 21:01:13,967 WARN L202 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 10966 DAG size of output: 3871 [2021-02-19 21:01:15,426 WARN L202 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 3550 DAG size of output: 4917 [2021-02-19 21:01:16,267 WARN L202 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 3465 DAG size of output: 3191 [2021-02-19 21:01:17,069 WARN L202 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 2997 DAG size of output: 2884 [2021-02-19 21:01:19,263 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 1381 DAG size of output: 930 [2021-02-19 21:01:19,420 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 1601 DAG size of output: 1074 [2021-02-19 21:01:20,673 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 2633 DAG size of output: 3806 [2021-02-19 21:01:21,587 WARN L202 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 2350 DAG size of output: 3155 [2021-02-19 21:01:22,034 WARN L202 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 2147 DAG size of output: 2139 [2021-02-19 21:01:23,285 WARN L202 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 1972 DAG size of output: 2870 [2021-02-19 21:01:23,584 WARN L202 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 1715 DAG size of output: 1715 [2021-02-19 21:01:23,845 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 1575 DAG size of output: 1575 [2021-02-19 21:01:24,332 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 1480 DAG size of output: 1480 [2021-02-19 21:01:25,547 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 1182 DAG size of output: 1182 [2021-02-19 21:01:27,417 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1579 DAG size of output: 787 [2021-02-19 21:01:27,553 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 1781 DAG size of output: 919 [2021-02-19 21:01:27,704 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 1920 DAG size of output: 1017 [2021-02-19 21:01:28,120 WARN L202 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 1924 DAG size of output: 1918 [2021-02-19 21:01:28,491 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 1783 [2021-02-19 21:01:28,938 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 1697 DAG size of output: 1697 [2021-02-19 21:01:29,088 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1040 DAG size of output: 1040 [2021-02-19 21:01:29,214 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 882 DAG size of output: 882 [2021-02-19 21:01:29,325 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 726 [2021-02-19 21:01:30,627 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 1330 DAG size of output: 1330 [2021-02-19 21:01:31,255 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 1035 [2021-02-19 21:01:31,384 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 886 [2021-02-19 21:01:32,759 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 1748 DAG size of output: 784 [2021-02-19 21:01:32,902 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 1833 DAG size of output: 843 [2021-02-19 21:01:33,060 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 1967 DAG size of output: 938 [2021-02-19 21:01:33,387 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 3166 DAG size of output: 1555 [2021-02-19 21:01:33,732 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 3445 DAG size of output: 1732 [2021-02-19 21:01:34,059 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 1603 DAG size of output: 1589 [2021-02-19 21:01:34,337 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 1456 DAG size of output: 1452 [2021-02-19 21:01:34,859 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 1367 DAG size of output: 1367 [2021-02-19 21:01:34,976 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 871 DAG size of output: 871 [2021-02-19 21:01:36,841 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 1081 DAG size of output: 1081 [2021-02-19 21:01:36,953 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 828 DAG size of output: 828 [2021-02-19 21:01:39,244 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 1732 DAG size of output: 1016 [2021-02-19 21:01:39,428 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 1893 DAG size of output: 1094 [2021-02-19 21:01:40,140 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 2173 DAG size of output: 1309 [2021-02-19 21:01:40,732 WARN L202 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 5017 DAG size of output: 2559 [2021-02-19 21:01:41,772 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 7041 DAG size of output: 3929 [2021-02-19 21:01:42,985 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 8301 DAG size of output: 4690 [2021-02-19 21:01:44,299 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 8530 DAG size of output: 4936 [2021-02-19 21:01:45,389 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 10374 DAG size of output: 3975 [2021-02-19 21:01:47,767 WARN L202 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 19095 DAG size of output: 6530 [2021-02-19 21:01:50,335 WARN L202 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 22145 DAG size of output: 6652 [2021-02-19 21:01:52,911 WARN L202 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 22145 DAG size of output: 6652 [2021-02-19 21:01:55,551 WARN L202 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 22154 DAG size of output: 6661 [2021-02-19 21:01:56,888 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 6658 DAG size of output: 6140 [2021-02-19 21:01:57,908 WARN L202 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 6142 DAG size of output: 4499 [2021-02-19 21:01:58,487 WARN L202 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 4127 DAG size of output: 2597 [2021-02-19 21:01:58,921 WARN L202 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 2592 DAG size of output: 2540 [2021-02-19 21:01:59,336 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 1698 DAG size of output: 2252 [2021-02-19 21:01:59,729 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 1634 DAG size of output: 1837 [2021-02-19 21:02:01,120 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1183 DAG size of output: 777 [2021-02-19 21:02:02,271 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1218 DAG size of output: 743 [2021-02-19 21:02:02,710 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1862 DAG size of output: 882 [2021-02-19 21:02:02,857 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 1868 DAG size of output: 888 [2021-02-19 21:02:03,036 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 2313 DAG size of output: 1037 [2021-02-19 21:02:03,218 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 2313 DAG size of output: 1037 [2021-02-19 21:02:03,519 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 2320 DAG size of output: 1387 [2021-02-19 21:02:04,598 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:02:04,599 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:02:04,600 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:02:04,600 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:3 [2021-02-19 21:02:04,606 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:02:04,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:02:04,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2021-02-19 21:02:04,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061348659] [2021-02-19 21:02:04,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-02-19 21:02:04,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:02:04,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-02-19 21:02:04,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1243, Unknown=0, NotChecked=0, Total=1332 [2021-02-19 21:02:04,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:02:04,608 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:02:04,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 36 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:02:04,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:02:04,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:02:04,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:02:04,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:02:04,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:02:04,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:02:04,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:04,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:02:04,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 21:02:04,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:02:04,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:04,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:04,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 21:02:04,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:02:04,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:02:04,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-02-19 21:02:04,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:02:04,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:02:04,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:02:04,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:02:04,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:02:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:02:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:02:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:02:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 21:02:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:02:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 21:02:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:02:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:02:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 21:02:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:05,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2766 [2021-02-19 21:02:05,179 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:02:05,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:02:05,180 INFO L82 PathProgramCache]: Analyzing trace with hash -2016604120, now seen corresponding path program 15 times [2021-02-19 21:02:05,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:02:05,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211160255] [2021-02-19 21:02:05,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:02:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:02:05,312 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 55 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:02:05,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211160255] [2021-02-19 21:02:05,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111169870] [2021-02-19 21:02:05,312 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:02:05,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-02-19 21:02:05,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:02:05,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 19 conjunts are in the unsatisfiable core [2021-02-19 21:02:05,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:02:05,403 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 66 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:02:05,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:02:05,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-02-19 21:02:05,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805663844] [2021-02-19 21:02:05,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-02-19 21:02:05,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:02:05,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-02-19 21:02:05,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-02-19 21:02:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:02:05,405 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:02:05,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:02:05,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:02:05,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-02-19 21:02:05,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:05,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:02:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:02:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:02:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:02:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:02:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:02:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:02:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:02:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 21:02:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:02:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:02:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 21:02:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:02:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:02:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 21:02:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:02:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-19 21:02:05,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18745,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:02:05,839 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:02:05,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:02:05,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1559574121, now seen corresponding path program 16 times [2021-02-19 21:02:05,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:02:05,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868705767] [2021-02-19 21:02:05,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:02:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:02:06,116 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:02:06,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868705767] [2021-02-19 21:02:06,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135324309] [2021-02-19 21:02:06,117 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:02:06,139 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 21:02:06,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:02:06,140 WARN L261 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 65 conjunts are in the unsatisfiable core [2021-02-19 21:02:06,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:02:07,060 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-02-19 21:02:07,060 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:02:07,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 23 new quantified variables, introduced 66 case distinctions, treesize of input 55 treesize of output 568 [2021-02-19 21:02:09,372 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1495 DAG size of output: 1211 [2021-02-19 21:02:09,483 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1495 DAG size of output: 1211 [2021-02-19 21:02:09,623 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 1514 DAG size of output: 1230 [2021-02-19 21:02:09,822 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 1232 DAG size of output: 1717 [2021-02-19 21:02:10,012 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 1177 DAG size of output: 1510 [2021-02-19 21:02:10,225 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 1204 [2021-02-19 21:02:10,391 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 1038 DAG size of output: 1236 [2021-02-19 21:02:10,501 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1033 DAG size of output: 1171 [2021-02-19 21:02:12,050 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 668 DAG size of output: 553 [2021-02-19 21:02:12,341 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 1003 DAG size of output: 1339 [2021-02-19 21:02:14,347 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1104 DAG size of output: 769 [2021-02-19 21:02:17,587 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 818 DAG size of output: 829 [2021-02-19 21:02:17,744 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 1071 DAG size of output: 856 [2021-02-19 21:02:17,962 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 1525 DAG size of output: 1167 [2021-02-19 21:02:18,340 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 2199 DAG size of output: 1680 [2021-02-19 21:02:18,711 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 2294 DAG size of output: 1772 [2021-02-19 21:02:19,267 WARN L202 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 2794 DAG size of output: 2181 [2021-02-19 21:02:19,838 WARN L202 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 2795 DAG size of output: 2171 [2021-02-19 21:02:22,021 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 898 [2021-02-19 21:02:22,210 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 1165 DAG size of output: 996 [2021-02-19 21:02:23,324 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 1591 DAG size of output: 1311 [2021-02-19 21:02:23,540 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 1594 DAG size of output: 1314 [2021-02-19 21:02:24,253 WARN L202 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 4029 DAG size of output: 2945 [2021-02-19 21:02:25,713 WARN L202 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 4493 DAG size of output: 3243 [2021-02-19 21:02:25,855 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1110 DAG size of output: 1289 [2021-02-19 21:02:26,088 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 1069 DAG size of output: 1287 [2021-02-19 21:02:27,929 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 954 DAG size of output: 983 [2021-02-19 21:02:28,077 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1031 DAG size of output: 1370 [2021-02-19 21:02:28,230 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 1349 [2021-02-19 21:02:28,381 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 934 DAG size of output: 1225 [2021-02-19 21:02:31,474 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 1479 DAG size of output: 1257 [2021-02-19 21:02:33,318 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 2040 DAG size of output: 1719 [2021-02-19 21:02:33,681 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 2502 DAG size of output: 2129 [2021-02-19 21:02:34,093 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 3048 DAG size of output: 2575 [2021-02-19 21:02:34,585 WARN L202 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 3439 DAG size of output: 3068 [2021-02-19 21:02:35,230 WARN L202 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 4191 DAG size of output: 3792 [2021-02-19 21:02:36,067 WARN L202 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 4415 DAG size of output: 3979 [2021-02-19 21:02:36,837 WARN L202 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 4904 DAG size of output: 4421 [2021-02-19 21:02:37,991 WARN L202 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 5137 DAG size of output: 4614 [2021-02-19 21:02:40,212 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 1353 DAG size of output: 981 [2021-02-19 21:02:41,442 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 1858 DAG size of output: 1354 [2021-02-19 21:02:41,682 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 2129 DAG size of output: 1573 [2021-02-19 21:02:42,234 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 2353 DAG size of output: 1744 [2021-02-19 21:02:43,291 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 6896 DAG size of output: 5346 [2021-02-19 21:02:45,145 WARN L202 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 10593 DAG size of output: 7527 [2021-02-19 21:02:45,370 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 1226 DAG size of output: 1612 [2021-02-19 21:02:45,524 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1151 DAG size of output: 1338 [2021-02-19 21:02:45,691 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 1134 DAG size of output: 1358 [2021-02-19 21:02:45,816 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 1129 DAG size of output: 1246 [2021-02-19 21:02:45,981 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 1088 DAG size of output: 1430 [2021-02-19 21:02:46,168 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 1081 DAG size of output: 1381 [2021-02-19 21:02:46,331 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 960 DAG size of output: 1234 [2021-02-19 21:02:46,498 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 953 DAG size of output: 1239 [2021-02-19 21:02:49,932 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1292 DAG size of output: 1310 [2021-02-19 21:02:50,093 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 1494 DAG size of output: 1343 [2021-02-19 21:02:50,342 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 1871 DAG size of output: 1621 [2021-02-19 21:02:50,584 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 1890 DAG size of output: 1640 [2021-02-19 21:02:50,858 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 1945 DAG size of output: 1680 [2021-02-19 21:02:51,028 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 785 DAG size of output: 889 [2021-02-19 21:02:54,247 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 1173 DAG size of output: 857 [2021-02-19 21:02:54,530 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 1709 DAG size of output: 1372 [2021-02-19 21:02:54,999 WARN L202 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 3161 DAG size of output: 2670 [2021-02-19 21:02:55,538 WARN L202 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 3634 DAG size of output: 3105 [2021-02-19 21:02:56,174 WARN L202 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 4193 DAG size of output: 3539 [2021-02-19 21:02:56,898 WARN L202 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 4712 DAG size of output: 4050 [2021-02-19 21:02:59,514 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 1272 DAG size of output: 1413 [2021-02-19 21:02:59,708 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 1445 DAG size of output: 1584 [2021-02-19 21:02:59,930 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 1621 DAG size of output: 1706 [2021-02-19 21:03:00,197 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 1823 DAG size of output: 1886 [2021-02-19 21:03:01,213 WARN L202 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 6186 DAG size of output: 5607 [2021-02-19 21:03:02,356 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 6778 DAG size of output: 6039 [2021-02-19 21:03:05,282 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1114 DAG size of output: 936 [2021-02-19 21:03:05,413 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 1246 DAG size of output: 991 [2021-02-19 21:03:05,556 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 1393 DAG size of output: 1032 [2021-02-19 21:03:05,747 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 1781 DAG size of output: 1323 [2021-02-19 21:03:05,949 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 2049 DAG size of output: 1480 [2021-02-19 21:03:07,355 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 2631 DAG size of output: 1918 [2021-02-19 21:03:07,851 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 2855 DAG size of output: 2044 [2021-02-19 21:03:08,215 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 2955 DAG size of output: 2138 [2021-02-19 21:03:08,608 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 3247 DAG size of output: 2348 [2021-02-19 21:03:10,057 WARN L202 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 9320 DAG size of output: 7109 [2021-02-19 21:03:10,220 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 1144 DAG size of output: 1285 [2021-02-19 21:03:10,464 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 1091 DAG size of output: 1291 [2021-02-19 21:03:10,578 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1086 DAG size of output: 1231 [2021-02-19 21:03:11,994 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 882 DAG size of output: 834 [2021-02-19 21:03:12,158 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1083 DAG size of output: 1458 [2021-02-19 21:03:13,961 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1040 DAG size of output: 885 [2021-02-19 21:03:14,938 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 1484 DAG size of output: 1155 [2021-02-19 21:03:15,121 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 1534 DAG size of output: 1205 [2021-02-19 21:03:17,319 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 976 DAG size of output: 973 [2021-02-19 21:03:17,492 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 1117 DAG size of output: 1125 [2021-02-19 21:03:17,655 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 1381 DAG size of output: 1158 [2021-02-19 21:03:19,242 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 1969 DAG size of output: 1612 [2021-02-19 21:03:19,522 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 1990 DAG size of output: 1633 [2021-02-19 21:03:20,013 WARN L202 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 2977 DAG size of output: 2504 [2021-02-19 21:03:20,648 WARN L202 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 3664 DAG size of output: 3170 [2021-02-19 21:03:21,303 WARN L202 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 3665 DAG size of output: 3165 [2021-02-19 21:03:22,206 WARN L202 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 3828 DAG size of output: 3307 [2021-02-19 21:03:24,976 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 1044 DAG size of output: 977 [2021-02-19 21:03:25,136 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1066 DAG size of output: 992 [2021-02-19 21:03:28,153 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 1113 DAG size of output: 1107 [2021-02-19 21:03:28,341 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 1135 DAG size of output: 1110 [2021-02-19 21:03:28,573 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 1175 DAG size of output: 1130 [2021-02-19 21:03:28,920 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 1986 DAG size of output: 1919 [2021-02-19 21:03:29,313 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 2247 DAG size of output: 2053 [2021-02-19 21:03:31,021 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 923 DAG size of output: 679 [2021-02-19 21:03:31,518 WARN L202 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 2959 DAG size of output: 2569 [2021-02-19 21:03:32,052 WARN L202 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 2962 DAG size of output: 2572 [2021-02-19 21:03:33,247 WARN L202 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 6145 DAG size of output: 5049 [2021-02-19 21:03:35,975 WARN L202 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 14298 DAG size of output: 11123 [2021-02-19 21:03:40,634 WARN L202 SmtUtils]: Spent 4.57 s on a formula simplification. DAG size of input: 22836 DAG size of output: 16311 [2021-02-19 21:03:45,395 WARN L202 SmtUtils]: Spent 4.66 s on a formula simplification. DAG size of input: 22836 DAG size of output: 16311 [2021-02-19 21:03:50,432 WARN L202 SmtUtils]: Spent 4.97 s on a formula simplification. DAG size of input: 22851 DAG size of output: 16326 [2021-02-19 21:03:53,811 WARN L202 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 16320 DAG size of output: 16017 [2021-02-19 21:03:58,447 WARN L202 SmtUtils]: Spent 4.52 s on a formula simplification. DAG size of input: 16019 DAG size of output: 17458 [2021-02-19 21:04:00,240 WARN L202 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 8798 DAG size of output: 8842 [2021-02-19 21:04:02,478 WARN L202 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 8433 DAG size of output: 10247 [2021-02-19 21:04:03,914 WARN L202 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 8283 DAG size of output: 8210 [2021-02-19 21:04:04,469 WARN L202 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 4000 DAG size of output: 4000 [2021-02-19 21:04:04,817 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 2400 DAG size of output: 2445 [2021-02-19 21:04:05,079 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 2304 DAG size of output: 2184 [2021-02-19 21:04:05,260 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 1597 DAG size of output: 1573 [2021-02-19 21:04:05,423 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 1546 [2021-02-19 21:04:05,541 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 1251 [2021-02-19 21:04:05,678 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 1070 [2021-02-19 21:04:05,807 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 1070 DAG size of output: 1107 [2021-02-19 21:04:08,913 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 931 DAG size of output: 640 [2021-02-19 21:04:09,027 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 932 DAG size of output: 640 [2021-02-19 21:04:09,549 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 1071 DAG size of output: 680 [2021-02-19 21:04:09,703 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1413 DAG size of output: 744 [2021-02-19 21:04:09,891 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 1435 DAG size of output: 757 [2021-02-19 21:04:11,561 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 2011 DAG size of output: 1118 [2021-02-19 21:04:11,864 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 2209 DAG size of output: 1310 [2021-02-19 21:04:12,141 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 1869 DAG size of output: 1860 [2021-02-19 21:04:12,364 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 1672 DAG size of output: 1643 [2021-02-19 21:04:12,613 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 1618 DAG size of output: 1596 [2021-02-19 21:04:12,825 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 1594 DAG size of output: 1589 [2021-02-19 21:04:14,868 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 991 DAG size of output: 718 [2021-02-19 21:04:14,977 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1179 DAG size of output: 791 [2021-02-19 21:04:15,134 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 983 DAG size of output: 1068 [2021-02-19 21:04:15,250 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 978 DAG size of output: 978 [2021-02-19 21:04:17,996 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 1038 DAG size of output: 770 [2021-02-19 21:04:18,154 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 1234 DAG size of output: 861 [2021-02-19 21:04:18,312 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 1378 DAG size of output: 995 [2021-02-19 21:04:18,592 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 2380 DAG size of output: 1565 [2021-02-19 21:04:18,876 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 2381 DAG size of output: 1445 [2021-02-19 21:04:19,189 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 2398 DAG size of output: 1442 [2021-02-19 21:04:19,504 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 2557 DAG size of output: 1533 [2021-02-19 21:04:20,113 WARN L202 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 4463 DAG size of output: 2486 [2021-02-19 21:04:20,741 WARN L202 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 4464 DAG size of output: 2437 [2021-02-19 21:04:21,750 WARN L202 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 6866 DAG size of output: 3926 [2021-02-19 21:04:22,809 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 7307 DAG size of output: 3953 [2021-02-19 21:04:25,098 WARN L202 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 18425 DAG size of output: 8255 [2021-02-19 21:04:27,363 WARN L202 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 18425 DAG size of output: 8255 [2021-02-19 21:04:29,757 WARN L202 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 18430 DAG size of output: 8260 [2021-02-19 21:04:30,428 WARN L202 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 3858 DAG size of output: 3615 [2021-02-19 21:04:30,974 WARN L202 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 3588 DAG size of output: 2953 [2021-02-19 21:04:31,374 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 2008 DAG size of output: 2275 [2021-02-19 21:04:31,722 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 1982 DAG size of output: 2118 [2021-02-19 21:04:31,997 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 1947 DAG size of output: 1853 [2021-02-19 21:04:32,251 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 1825 DAG size of output: 1823 [2021-02-19 21:04:32,409 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 1281 DAG size of output: 1281 [2021-02-19 21:04:32,563 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1261 DAG size of output: 1261 [2021-02-19 21:04:32,734 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 1252 DAG size of output: 1252 [2021-02-19 21:04:33,355 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 730 DAG size of output: 773 [2021-02-19 21:04:34,687 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1256 DAG size of output: 737 [2021-02-19 21:04:34,891 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1448 DAG size of output: 755 [2021-02-19 21:04:35,011 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 1899 DAG size of output: 779 [2021-02-19 21:04:35,166 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 2846 DAG size of output: 882 [2021-02-19 21:04:35,322 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 2917 DAG size of output: 883 [2021-02-19 21:04:36,232 WARN L202 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 4647 DAG size of output: 4771 [2021-02-19 21:04:36,719 WARN L202 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 4240 DAG size of output: 2333 [2021-02-19 21:04:36,967 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 1682 DAG size of output: 1686 [2021-02-19 21:04:37,217 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 1624 DAG size of output: 1647 [2021-02-19 21:04:37,439 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 1528 DAG size of output: 1537 [2021-02-19 21:04:37,648 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 1487 DAG size of output: 1537 [2021-02-19 21:04:37,818 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 1468 DAG size of output: 1468 [2021-02-19 21:04:37,941 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 809 DAG size of output: 943 [2021-02-19 21:04:38,146 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 772 DAG size of output: 904 [2021-02-19 21:04:39,166 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 846 DAG size of output: 1149 [2021-02-19 21:04:40,923 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 3424 DAG size of output: 1385 [2021-02-19 21:04:41,278 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 6129 DAG size of output: 2118 [2021-02-19 21:04:41,644 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 6129 DAG size of output: 2118 [2021-02-19 21:04:42,042 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 6134 DAG size of output: 2127 [2021-02-19 21:04:42,310 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 2129 DAG size of output: 1963 [2021-02-19 21:04:42,509 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 1913 DAG size of output: 1900 [2021-02-19 21:04:44,902 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 762 DAG size of output: 906 [2021-02-19 21:04:45,020 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 684 DAG size of output: 814 [2021-02-19 21:04:47,773 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1565 DAG size of output: 702 [2021-02-19 21:04:49,170 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 776 DAG size of output: 769 [2021-02-19 21:04:52,451 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1294 DAG size of output: 858 [2021-02-19 21:04:52,569 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 1633 DAG size of output: 858 [2021-02-19 21:04:52,712 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 1922 DAG size of output: 965 [2021-02-19 21:04:53,792 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 2577 DAG size of output: 1081 [2021-02-19 21:04:54,083 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 3275 DAG size of output: 1346 [2021-02-19 21:04:54,565 WARN L202 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 5859 DAG size of output: 2418 [2021-02-19 21:04:55,104 WARN L202 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 5945 DAG size of output: 2471 [2021-02-19 21:04:55,626 WARN L202 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 5945 DAG size of output: 2471 [2021-02-19 21:04:56,195 WARN L202 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 5950 DAG size of output: 2476 [2021-02-19 21:04:56,497 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 2476 DAG size of output: 2297 [2021-02-19 21:04:56,812 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 2254 DAG size of output: 1494 [2021-02-19 21:04:56,964 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 963 DAG size of output: 1120 [2021-02-19 21:04:57,871 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1113 DAG size of output: 717 [2021-02-19 21:04:58,664 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 1464 DAG size of output: 962 [2021-02-19 21:04:58,829 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 1489 DAG size of output: 984 [2021-02-19 21:04:58,996 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 1489 DAG size of output: 984 [2021-02-19 21:04:59,168 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 1491 DAG size of output: 987 [2021-02-19 21:04:59,315 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 989 DAG size of output: 1257 [2021-02-19 21:04:59,436 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 809 DAG size of output: 597 [2021-02-19 21:04:59,935 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:04:59,937 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:04:59,937 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:04:59,937 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:3 [2021-02-19 21:04:59,944 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:04:59,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:04:59,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2021-02-19 21:04:59,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262579725] [2021-02-19 21:04:59,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-02-19 21:04:59,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:04:59,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-02-19 21:04:59,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1700, Unknown=0, NotChecked=0, Total=1806 [2021-02-19 21:04:59,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:04:59,946 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:04:59,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 1.186046511627907) internal successors, (51), 42 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:04:59,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:04:59,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:04:59,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:04:59,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:04:59,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:04:59,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:04:59,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:04:59,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:04:59,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 21:04:59,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:04:59,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:04:59,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:04:59,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 21:04:59,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:04:59,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:04:59,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-02-19 21:04:59,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:04:59,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-02-19 21:04:59,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:05:00,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:05:00,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:05:00,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:05:00,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:05:00,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:05:00,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:05:00,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:05:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:05:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 21:05:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:05:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:05:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:05:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 21:05:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:05:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:05:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 21:05:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:05:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-19 21:05:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 21:05:00,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18746,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:05:00,623 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:05:00,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:05:00,623 INFO L82 PathProgramCache]: Analyzing trace with hash 287797491, now seen corresponding path program 17 times [2021-02-19 21:05:00,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:05:00,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346085886] [2021-02-19 21:05:00,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:05:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:05:00,899 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:05:00,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346085886] [2021-02-19 21:05:00,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383471985] [2021-02-19 21:05:00,899 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:05:00,932 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-02-19 21:05:00,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:05:00,933 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 67 conjunts are in the unsatisfiable core [2021-02-19 21:05:00,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:05:02,023 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 339 [2021-02-19 21:05:02,024 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:05:02,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 25 new quantified variables, introduced 78 case distinctions, treesize of input 59 treesize of output 667 [2021-02-19 21:05:06,373 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 1954 DAG size of output: 1547 [2021-02-19 21:05:06,509 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 1998 DAG size of output: 1590 [2021-02-19 21:05:06,653 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 2025 DAG size of output: 1617 [2021-02-19 21:05:06,913 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 3337 DAG size of output: 2495 [2021-02-19 21:05:07,159 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 3337 DAG size of output: 2495 [2021-02-19 21:05:07,441 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 3360 DAG size of output: 2518 [2021-02-19 21:05:07,655 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 2509 DAG size of output: 2506 [2021-02-19 21:05:07,890 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 2508 DAG size of output: 2523 [2021-02-19 21:05:08,091 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 2497 DAG size of output: 2494 [2021-02-19 21:05:08,276 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 1589 DAG size of output: 1968 [2021-02-19 21:05:08,409 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 1586 DAG size of output: 1595 [2021-02-19 21:05:08,573 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 1583 DAG size of output: 1663 [2021-02-19 21:05:08,683 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1578 DAG size of output: 1578 [2021-02-19 21:05:08,807 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 1557 DAG size of output: 1557 [2021-02-19 21:05:11,478 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1494 DAG size of output: 1104 [2021-02-19 21:05:12,799 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 2657 DAG size of output: 1450 [2021-02-19 21:05:13,014 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 3267 DAG size of output: 1895 [2021-02-19 21:05:13,217 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 3290 DAG size of output: 1917 [2021-02-19 21:05:13,430 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 3310 DAG size of output: 1936 [2021-02-19 21:05:13,665 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 3445 DAG size of output: 2035 [2021-02-19 21:05:13,929 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 3487 DAG size of output: 2073 [2021-02-19 21:05:14,211 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 3913 DAG size of output: 2323 [2021-02-19 21:05:14,369 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 1154 DAG size of output: 1549 [2021-02-19 21:05:14,575 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1148 DAG size of output: 1246 [2021-02-19 21:05:14,774 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1140 DAG size of output: 1140 [2021-02-19 21:05:14,904 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 1117 DAG size of output: 1161 [2021-02-19 21:05:16,793 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1881 DAG size of output: 1136 [2021-02-19 21:05:16,958 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 2316 DAG size of output: 1394 [2021-02-19 21:05:17,384 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 5749 DAG size of output: 3310 [2021-02-19 21:05:17,864 WARN L202 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 5779 DAG size of output: 3337 [2021-02-19 21:05:18,321 WARN L202 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 5779 DAG size of output: 3337 [2021-02-19 21:05:18,921 WARN L202 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 5791 DAG size of output: 3379 [2021-02-19 21:05:19,369 WARN L202 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 3344 DAG size of output: 3420 [2021-02-19 21:05:19,802 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 3280 DAG size of output: 3293 [2021-02-19 21:05:20,143 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 3216 DAG size of output: 3216 [2021-02-19 21:05:20,546 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 3191 DAG size of output: 3115 [2021-02-19 21:05:20,975 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 3087 DAG size of output: 3174 [2021-02-19 21:05:21,232 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 2011 DAG size of output: 1913 [2021-02-19 21:05:21,414 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 1693 [2021-02-19 21:05:23,228 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 1004 DAG size of output: 1200 [2021-02-19 21:05:25,824 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 2067 DAG size of output: 912 [2021-02-19 21:05:26,015 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 2374 DAG size of output: 1168 [2021-02-19 21:05:26,343 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 3536 DAG size of output: 2226 [2021-02-19 21:05:26,668 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 3594 DAG size of output: 2268 [2021-02-19 21:05:27,017 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 3621 DAG size of output: 2239 [2021-02-19 21:05:27,404 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 3728 DAG size of output: 2298 [2021-02-19 21:05:27,815 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 3943 DAG size of output: 2495 [2021-02-19 21:05:28,261 WARN L202 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 4030 DAG size of output: 2583 [2021-02-19 21:05:28,700 WARN L202 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 4030 DAG size of output: 2583 [2021-02-19 21:05:29,180 WARN L202 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 4035 DAG size of output: 2581 [2021-02-19 21:05:29,646 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 2583 DAG size of output: 2779 [2021-02-19 21:05:30,205 WARN L202 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 2278 DAG size of output: 3164 [2021-02-19 21:05:30,593 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 1697 DAG size of output: 2269 [2021-02-19 21:05:30,862 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 1451 DAG size of output: 1548 [2021-02-19 21:05:30,988 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 1097 DAG size of output: 994 [2021-02-19 21:05:31,474 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 873 DAG size of output: 1198 [2021-02-19 21:05:31,600 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 785 DAG size of output: 999 [2021-02-19 21:05:31,724 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 755 DAG size of output: 1074 [2021-02-19 21:05:31,833 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 769 [2021-02-19 21:05:34,343 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1336 DAG size of output: 714 [2021-02-19 21:05:34,465 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1337 DAG size of output: 717 [2021-02-19 21:05:34,598 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1470 DAG size of output: 809 [2021-02-19 21:05:34,831 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 2186 DAG size of output: 1283 [2021-02-19 21:05:35,029 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 1606 DAG size of output: 1604 [2021-02-19 21:05:35,225 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 1539 DAG size of output: 1539 [2021-02-19 21:05:35,380 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1381 DAG size of output: 1381 [2021-02-19 21:05:36,021 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 1324 DAG size of output: 1284 [2021-02-19 21:05:36,252 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 1275 DAG size of output: 1269 [2021-02-19 21:05:36,410 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 941 DAG size of output: 1256 [2021-02-19 21:05:37,828 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 875 [2021-02-19 21:05:39,044 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 1729 DAG size of output: 979 [2021-02-19 21:05:39,211 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 1761 DAG size of output: 1012 [2021-02-19 21:05:39,405 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 2055 DAG size of output: 1192 [2021-02-19 21:05:39,725 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 2199 DAG size of output: 1322 [2021-02-19 21:05:39,958 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 2262 DAG size of output: 1363 [2021-02-19 21:05:40,402 WARN L202 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 3895 DAG size of output: 2281 [2021-02-19 21:05:40,911 WARN L202 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 2028 DAG size of output: 2639 [2021-02-19 21:05:41,114 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 1660 DAG size of output: 1652 [2021-02-19 21:05:41,308 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 1623 DAG size of output: 1623 [2021-02-19 21:05:41,884 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 1493 DAG size of output: 1601 [2021-02-19 21:05:42,014 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 1135 DAG size of output: 1042 [2021-02-19 21:05:42,180 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 1023 DAG size of output: 1243 [2021-02-19 21:05:42,292 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 741 DAG size of output: 885 [2021-02-19 21:05:42,424 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 691 DAG size of output: 924 [2021-02-19 21:05:43,753 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 867 DAG size of output: 1038 [2021-02-19 21:05:44,018 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 751 DAG size of output: 1052 [2021-02-19 21:05:44,195 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 690 DAG size of output: 833 [2021-02-19 21:05:45,539 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 943 DAG size of output: 758 [2021-02-19 21:05:45,836 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 1056 DAG size of output: 809 [2021-02-19 21:05:46,025 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 1766 DAG size of output: 1200 [2021-02-19 21:05:46,249 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 1941 DAG size of output: 1296 [2021-02-19 21:05:46,501 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 1967 DAG size of output: 1313 [2021-02-19 21:05:46,759 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 1954 DAG size of output: 1952 [2021-02-19 21:05:47,117 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 1885 DAG size of output: 2090 [2021-02-19 21:05:47,299 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 1388 DAG size of output: 1370 [2021-02-19 21:05:47,598 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2021-02-19 21:05:47,979 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 1202 DAG size of output: 1166 [2021-02-19 21:05:48,121 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1155 DAG size of output: 1155 [2021-02-19 21:05:48,323 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 1131 DAG size of output: 1416 [2021-02-19 21:05:48,482 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 946 DAG size of output: 1130 [2021-02-19 21:05:49,785 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 820 DAG size of output: 949 [2021-02-19 21:05:49,897 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 743 DAG size of output: 969 [2021-02-19 21:05:51,167 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1135 DAG size of output: 884 [2021-02-19 21:05:51,299 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 1196 DAG size of output: 913 [2021-02-19 21:05:51,541 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 2191 DAG size of output: 1524 [2021-02-19 21:05:51,850 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 2245 DAG size of output: 1553 [2021-02-19 21:05:52,358 WARN L202 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 3475 DAG size of output: 2322 [2021-02-19 21:05:53,330 WARN L202 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 6866 DAG size of output: 4100 [2021-02-19 21:05:54,367 WARN L202 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 7402 DAG size of output: 4105 [2021-02-19 21:05:55,413 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 7402 DAG size of output: 4105 [2021-02-19 21:05:56,502 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 7407 DAG size of output: 4110 [2021-02-19 21:05:56,994 WARN L202 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 4112 DAG size of output: 2364 [2021-02-19 21:05:57,379 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 2072 DAG size of output: 1846 [2021-02-19 21:05:57,639 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 1675 DAG size of output: 1494 [2021-02-19 21:05:59,532 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 841 DAG size of output: 972 [2021-02-19 21:06:01,866 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 1945 DAG size of output: 1310 [2021-02-19 21:06:02,561 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 2171 DAG size of output: 1451 [2021-02-19 21:06:02,811 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 2265 DAG size of output: 1520 [2021-02-19 21:06:03,081 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 2265 DAG size of output: 1520 [2021-02-19 21:06:03,341 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 2267 DAG size of output: 1522 [2021-02-19 21:06:03,464 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 1526 DAG size of output: 877 [2021-02-19 21:06:04,007 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:06:04,008 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:06:04,009 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:06:04,009 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:3 [2021-02-19 21:06:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:06:04,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:06:04,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2021-02-19 21:06:04,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991500071] [2021-02-19 21:06:04,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-02-19 21:06:04,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:06:04,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-02-19 21:06:04,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1702, Unknown=0, NotChecked=0, Total=1806 [2021-02-19 21:06:04,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:06:04,018 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:06:04,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 42 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:06:04,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-02-19 21:06:04,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-19 21:06:04,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:06:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:06:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:06:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:06:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:06:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:06:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:06:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:06:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:06:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 21:06:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:06:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:06:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:06:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 21:06:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:06:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:06:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 21:06:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:06:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-19 21:06:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 21:06:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 21:06:04,741 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42157 [2021-02-19 21:06:04,741 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:06:04,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:06:04,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1721742615, now seen corresponding path program 18 times [2021-02-19 21:06:04,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:06:04,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158065341] [2021-02-19 21:06:04,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:06:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:06:04,919 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 78 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:06:04,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158065341] [2021-02-19 21:06:04,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800270935] [2021-02-19 21:06:04,920 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:06:04,949 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-02-19 21:06:04,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:06:04,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 22 conjunts are in the unsatisfiable core [2021-02-19 21:06:04,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:06:05,011 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 91 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:06:05,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:06:05,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-02-19 21:06:05,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991072748] [2021-02-19 21:06:05,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-02-19 21:06:05,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:06:05,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-02-19 21:06:05,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2021-02-19 21:06:05,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:06:05,012 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:06:05,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 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) [2021-02-19 21:06:05,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:06:05,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:06:05,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:06:05,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:06:05,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:06:05,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:06:05,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:06:05,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:06:05,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-19 21:06:05,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:06:05,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:06:05,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:06:05,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 21:06:05,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:06:05,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:06:05,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-02-19 21:06:05,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:06:05,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-02-19 21:06:05,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-19 21:06:05,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-19 21:06:05,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:06:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:06:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 21:06:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:06:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 21:06:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 21:06:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:06:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:06:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 21:06:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 21:06:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 21:06:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 21:06:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:06:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 21:06:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 21:06:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 21:06:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 21:06:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 21:06:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-19 21:06:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 21:06:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 21:06:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-19 21:06:05,483 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51162,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:06:05,484 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:06:05,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:06:05,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1634942328, now seen corresponding path program 19 times [2021-02-19 21:06:05,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:06:05,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990250489] [2021-02-19 21:06:05,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:06:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:06:05,825 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:06:05,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990250489] [2021-02-19 21:06:05,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200102460] [2021-02-19 21:06:05,826 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:06:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:06:05,851 WARN L261 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 74 conjunts are in the unsatisfiable core [2021-02-19 21:06:05,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:06:07,187 WARN L202 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2021-02-19 21:06:07,187 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:06:07,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 27 new quantified variables, introduced 91 case distinctions, treesize of input 63 treesize of output 774 [2021-02-19 21:06:10,195 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1319 DAG size of output: 1082 [2021-02-19 21:06:13,903 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 1718 DAG size of output: 1504 [2021-02-19 21:06:14,194 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 2711 DAG size of output: 2240 [2021-02-19 21:06:14,508 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 2711 DAG size of output: 2240 [2021-02-19 21:06:14,850 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 2734 DAG size of output: 2263 [2021-02-19 21:06:15,498 WARN L202 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 2265 DAG size of output: 2760 [2021-02-19 21:06:16,140 WARN L202 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 2214 DAG size of output: 2345 [2021-02-19 21:06:16,439 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 2206 DAG size of output: 2185 [2021-02-19 21:06:16,567 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2021-02-19 21:06:16,699 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 714 DAG size of output: 839 [2021-02-19 21:06:16,835 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 702 DAG size of output: 922 [2021-02-19 21:06:16,955 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 873 [2021-02-19 21:06:17,098 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 612 DAG size of output: 765 [2021-02-19 21:06:17,203 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 791 [2021-02-19 21:06:18,122 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 616 [2021-02-19 21:06:19,891 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1059 DAG size of output: 974 [2021-02-19 21:06:20,035 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1251 DAG size of output: 1159 [2021-02-19 21:06:20,145 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 424 DAG size of output: 560 [2021-02-19 21:06:21,234 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 870 DAG size of output: 816 [2021-02-19 21:06:21,485 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 1672 DAG size of output: 1653 [2021-02-19 21:06:24,563 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 875 [2021-02-19 21:06:24,762 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 1478 DAG size of output: 1278 [2021-02-19 21:06:25,224 WARN L202 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 2806 DAG size of output: 2648 [2021-02-19 21:06:27,862 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 1268 DAG size of output: 1210 [2021-02-19 21:06:28,044 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 1290 DAG size of output: 1224 [2021-02-19 21:06:30,259 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 1013 DAG size of output: 847 [2021-02-19 21:06:30,589 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 1918 DAG size of output: 1735 [2021-02-19 21:06:31,399 WARN L202 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 4108 DAG size of output: 3861 [2021-02-19 21:06:35,669 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 894 DAG size of output: 855 [2021-02-19 21:06:35,893 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 1472 DAG size of output: 1415 [2021-02-19 21:06:38,260 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1102 DAG size of output: 1097 [2021-02-19 21:06:40,310 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 996 DAG size of output: 930 [2021-02-19 21:06:40,644 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 1885 DAG size of output: 1855 [2021-02-19 21:06:41,118 WARN L202 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 2979 DAG size of output: 2592 [2021-02-19 21:06:41,796 WARN L202 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 3330 DAG size of output: 2923 [2021-02-19 21:06:43,839 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1034 DAG size of output: 935 [2021-02-19 21:06:44,293 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1354 DAG size of output: 1208 [2021-02-19 21:06:46,559 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 1049 DAG size of output: 1054 [2021-02-19 21:06:47,399 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 1683 DAG size of output: 1619 [2021-02-19 21:06:47,809 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 2475 DAG size of output: 2361 [2021-02-19 21:06:49,566 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 895 DAG size of output: 878 [2021-02-19 21:06:51,166 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 1440 DAG size of output: 1361 [2021-02-19 21:06:51,746 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 1717 DAG size of output: 1614 [2021-02-19 21:06:52,414 WARN L202 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 3510 DAG size of output: 3419 [2021-02-19 21:06:53,720 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 5856 DAG size of output: 5538 [2021-02-19 21:06:55,104 WARN L202 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 5911 DAG size of output: 5557 [2021-02-19 21:06:57,309 WARN L202 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 9470 DAG size of output: 8715 [2021-02-19 21:07:00,047 WARN L202 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 9893 DAG size of output: 8955 [2021-02-19 21:07:02,574 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 1625 DAG size of output: 1180 [2021-02-19 21:07:04,049 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 968 DAG size of output: 790 [2021-02-19 21:07:04,347 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 2310 DAG size of output: 1732 [2021-02-19 21:07:07,102 WARN L202 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 11843 DAG size of output: 10408 [2021-02-19 21:07:10,031 WARN L202 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 12069 DAG size of output: 10662 [2021-02-19 21:07:13,152 WARN L202 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 12304 DAG size of output: 10799 [2021-02-19 21:07:16,560 WARN L202 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 12623 DAG size of output: 11076 [2021-02-19 21:07:16,762 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 605 DAG size of output: 770 [2021-02-19 21:07:21,542 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1222 DAG size of output: 1178 [2021-02-19 21:07:21,703 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 1295 DAG size of output: 1237 [2021-02-19 21:07:25,078 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 905 DAG size of output: 826 [2021-02-19 21:07:25,292 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1517 DAG size of output: 1293 [2021-02-19 21:07:25,532 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 2085 DAG size of output: 1873 [2021-02-19 21:07:25,963 WARN L202 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 3132 DAG size of output: 2873 [2021-02-19 21:07:28,645 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 1771 DAG size of output: 1614 [2021-02-19 21:07:30,961 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 1473 DAG size of output: 1347 [2021-02-19 21:07:31,282 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 2646 DAG size of output: 2378 [2021-02-19 21:07:33,633 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 1314 DAG size of output: 1284 [2021-02-19 21:07:34,798 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 850 DAG size of output: 799 [2021-02-19 21:07:35,924 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1313 DAG size of output: 1108 [2021-02-19 21:07:37,728 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 1157 DAG size of output: 1094 [2021-02-19 21:07:37,901 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 1231 DAG size of output: 1163 [2021-02-19 21:07:38,183 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 2206 DAG size of output: 1970 [2021-02-19 21:07:38,625 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 3256 DAG size of output: 2982 [2021-02-19 21:07:39,439 WARN L202 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 4900 DAG size of output: 4652 [2021-02-19 21:07:41,229 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1221 DAG size of output: 1050 [2021-02-19 21:07:42,395 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 1852 DAG size of output: 1640 [2021-02-19 21:07:44,735 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1417 DAG size of output: 1310 [2021-02-19 21:07:45,075 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 2751 DAG size of output: 2408 [2021-02-19 21:07:46,713 WARN L202 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 8107 DAG size of output: 7809 [2021-02-19 21:07:49,138 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1136 DAG size of output: 956 [2021-02-19 21:07:50,055 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 1169 DAG size of output: 1060 [2021-02-19 21:07:51,734 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 1267 DAG size of output: 1175 [2021-02-19 21:07:54,452 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 1158 DAG size of output: 1056 [2021-02-19 21:07:56,007 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 1256 DAG size of output: 1171 [2021-02-19 21:07:56,455 WARN L202 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 2376 DAG size of output: 2190 [2021-02-19 21:07:58,588 WARN L202 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 10534 DAG size of output: 10078 [2021-02-19 21:08:01,415 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 1090 DAG size of output: 1011 [2021-02-19 21:08:01,634 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 1496 DAG size of output: 1466 [2021-02-19 21:08:02,421 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 2068 DAG size of output: 1823 [2021-02-19 21:08:04,922 WARN L202 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 12450 DAG size of output: 11688 [2021-02-19 21:08:07,658 WARN L202 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 13101 DAG size of output: 12266 [2021-02-19 21:08:10,551 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 13395 DAG size of output: 12440 [2021-02-19 21:08:13,626 WARN L202 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 14397 DAG size of output: 13079 [2021-02-19 21:08:16,858 WARN L202 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 14649 DAG size of output: 13223 [2021-02-19 21:08:20,241 WARN L202 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 14977 DAG size of output: 13506 [2021-02-19 21:08:24,710 WARN L202 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 15194 DAG size of output: 13738 [2021-02-19 21:08:31,669 WARN L202 SmtUtils]: Spent 6.87 s on a formula simplification. DAG size of input: 26745 DAG size of output: 23370 [2021-02-19 21:08:31,884 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 700 DAG size of output: 851 [2021-02-19 21:08:32,009 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 669 DAG size of output: 954 [2021-02-19 21:08:32,143 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 655 DAG size of output: 927 [2021-02-19 21:08:32,251 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 650 DAG size of output: 911 [2021-02-19 21:08:37,030 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 1732 DAG size of output: 1508 [2021-02-19 21:08:37,274 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 1999 DAG size of output: 1657 [2021-02-19 21:08:41,117 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 1261 DAG size of output: 1207 [2021-02-19 21:08:41,264 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 1380 DAG size of output: 1286 [2021-02-19 21:08:41,565 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 2319 DAG size of output: 2179 [2021-02-19 21:08:42,085 WARN L202 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 3783 DAG size of output: 3037 [2021-02-19 21:08:43,475 WARN L202 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 4152 DAG size of output: 3383 [2021-02-19 21:08:45,131 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1017 DAG size of output: 785 [2021-02-19 21:08:46,553 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1000 DAG size of output: 921 [2021-02-19 21:08:46,922 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1271 DAG size of output: 1151 [2021-02-19 21:08:47,165 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 1888 DAG size of output: 1608 [2021-02-19 21:08:48,702 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 760 DAG size of output: 757 [2021-02-19 21:08:48,816 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 1244 DAG size of output: 1149 [2021-02-19 21:08:50,018 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 1820 DAG size of output: 1729 [2021-02-19 21:08:52,228 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 1404 DAG size of output: 1234 [2021-02-19 21:08:52,600 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 2664 DAG size of output: 2563 [2021-02-19 21:08:53,207 WARN L202 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 3829 DAG size of output: 3556 [2021-02-19 21:08:53,899 WARN L202 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 4064 DAG size of output: 3714 Received shutdown request... [2021-02-19 21:08:55,367 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 7138 DAG size of output: 6235 [2021-02-19 21:08:55,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51163,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:08:55,602 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-19 21:08:55,606 WARN L224 ceAbstractionStarter]: Timeout [2021-02-19 21:08:55,606 INFO L202 PluginConnector]: Adding new model unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 09:08:55 BasicIcfg [2021-02-19 21:08:55,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 21:08:55,607 INFO L168 Benchmark]: Toolchain (without parser) took 566156.45 ms. Allocated memory was 255.9 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 236.6 MB in the beginning and 2.5 GB in the end (delta: -2.2 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. [2021-02-19 21:08:55,607 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 21:08:55,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.96 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 21:08:55,607 INFO L168 Benchmark]: Boogie Preprocessor took 16.59 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.6 MB in the end (delta: 873.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 21:08:55,607 INFO L168 Benchmark]: RCFGBuilder took 219.13 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 235.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.0 GB. [2021-02-19 21:08:55,607 INFO L168 Benchmark]: TraceAbstraction took 565893.55 ms. Allocated memory was 255.9 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 234.9 MB in the beginning and 2.5 GB in the end (delta: -2.2 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. [2021-02-19 21:08:55,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.96 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.59 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.6 MB in the end (delta: 873.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 219.13 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 235.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 565893.55 ms. Allocated memory was 255.9 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 234.9 MB in the beginning and 2.5 GB in the end (delta: -2.2 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 56). Cancelled while PartialOrderCegarLoop was analyzing trace of length 32 with TraceHistMax 14,while TraceCheckSpWp was constructing forward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 565.8s, OverallIterations: 22, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 386.0s InterpolantComputationTime, 830 NumberOfCodeBlocks, 830 NumberOfCodeBlocksAsserted, 87 NumberOfCheckSat, 789 ConstructedInterpolants, 0 QuantifiedInterpolants, 216009 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1670 ConjunctsInSsa, 626 ConjunctsInUnsatCore, 41 InterpolantComputations, 1 PerfectInterpolantSequences, 455/1862 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown