/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.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-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 20:38:33,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 20:38:33,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 20:38:33,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 20:38:33,493 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-07-14 20:38:33,528 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 20:38:33,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 20:38:33,528 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 20:38:33,529 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 20:38:33,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 20:38:33,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 20:38:33,530 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 20:38:33,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 20:38:33,530 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 20:38:33,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 20:38:33,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 20:38:33,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 20:38:33,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 20:38:33,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 20:38:33,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 20:38:33,531 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 20:38:33,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 20:38:33,531 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 20:38:33,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 20:38:33,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 20:38:33,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 20:38:33,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 20:38:33,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 20:38:33,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 20:38:33,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 20:38:33,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 20:38:33,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 20:38:33,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 20:38:33,533 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 20:38:33,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 20:38:33,533 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 20:38:33,533 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 20:38:33,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 20:38:33,534 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 20:38:33,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 20:38:33,534 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 20:38:33,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 20:38:33,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 20:38:33,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 20:38:33,859 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 20:38:33,860 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 20:38:33,861 INFO L432 ainManager$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 [2021-07-14 20:38:33,861 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-2.wvr.bpl' [2021-07-14 20:38:33,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 20:38:33,883 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 20:38:33,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 20:38:33,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 20:38:33,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 20:38:33,894 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 14.07 08:38:33" (1/1) ... [2021-07-14 20:38:33,903 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 14.07 08:38:33" (1/1) ... [2021-07-14 20:38:33,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 20:38:33,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 20:38:33,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 20:38:33,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 20:38:33,914 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 14.07 08:38:33" (1/1) ... [2021-07-14 20:38:33,914 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 14.07 08:38:33" (1/1) ... [2021-07-14 20:38:33,915 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 14.07 08:38:33" (1/1) ... [2021-07-14 20:38:33,915 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 14.07 08:38:33" (1/1) ... [2021-07-14 20:38:33,917 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 14.07 08:38:33" (1/1) ... [2021-07-14 20:38:33,919 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 14.07 08:38:33" (1/1) ... [2021-07-14 20:38:33,920 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 14.07 08:38:33" (1/1) ... [2021-07-14 20:38:33,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 20:38:33,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 20:38:33,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 20:38:33,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 20:38:33,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:38:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 20:38:33,979 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 20:38:33,979 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 20:38:33,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 20:38:33,979 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 20:38:33,980 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 20:38:33,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 20:38:33,980 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 20:38:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 20:38:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 20:38:33,982 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 20:38:34,165 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 20:38:34,165 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-07-14 20:38:34,166 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-07-14 20:38:34,167 INFO L202 PluginConnector]: Adding new model unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 08:38:34 BoogieIcfgContainer [2021-07-14 20:38:34,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 20:38:34,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 20:38:34,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 20:38:34,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 20:38:34,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:38:33" (1/2) ... [2021-07-14 20:38:34,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462446dc and model type unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 08:38:34, skipping insertion in model container [2021-07-14 20:38:34,173 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 14.07 08:38:34" (2/2) ... [2021-07-14 20:38:34,174 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-2.wvr.bpl [2021-07-14 20:38:34,179 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 20:38:34,179 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 20:38:34,180 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 20:38:34,180 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 20:38:34,204 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-14 20:38:34,249 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 20:38:34,303 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 20:38:34,304 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 20:38:34,304 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 20:38:34,304 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 20:38:34,304 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 20:38:34,304 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 20:38:34,304 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 20:38:34,305 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 20:38:34,357 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:34,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:34,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1683443861, now seen corresponding path program 1 times [2021-07-14 20:38:34,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:34,370 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320323025] [2021-07-14 20:38:34,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:34,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:34,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:34,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320323025] [2021-07-14 20:38:34,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320323025] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 20:38:34,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 20:38:34,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 20:38:34,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470274524] [2021-07-14 20:38:34,613 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 20:38:34,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:34,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 20:38:34,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-14 20:38:34,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:34,630 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:34,633 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:34,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:34,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:34,677 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 20:38:34,677 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:34,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:34,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1844243121, now seen corresponding path program 1 times [2021-07-14 20:38:34,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:34,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915438867] [2021-07-14 20:38:34,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:34,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:34,767 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:34,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915438867] [2021-07-14 20:38:34,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915438867] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:34,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505022375] [2021-07-14 20:38:34,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:34,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 20:38:34,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:35,073 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 [2021-07-14 20:38:35,076 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:38:35,078 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:35,081 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:38:35,082 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-07-14 20:38:35,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:35,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505022375] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:35,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:35,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-07-14 20:38:35,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803410760] [2021-07-14 20:38:35,096 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 20:38:35,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:35,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 20:38:35,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-14 20:38:35,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:35,097 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:35,097 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 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) [2021-07-14 20:38:35,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:35,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:35,377 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:35,377 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:35,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:35,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1310345098, now seen corresponding path program 1 times [2021-07-14 20:38:35,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:35,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616836004] [2021-07-14 20:38:35,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:35,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:35,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:35,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616836004] [2021-07-14 20:38:35,410 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616836004] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:35,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079149704] [2021-07-14 20:38:35,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:35,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-14 20:38:35,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:35,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:35,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079149704] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:35,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:35,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-07-14 20:38:35,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65965564] [2021-07-14 20:38:35,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 20:38:35,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:35,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 20:38:35,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-07-14 20:38:35,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:35,473 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:35,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:35,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:35,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:35,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:35,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:35,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:35,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:35,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:35,740 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:35,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:35,741 INFO L82 PathProgramCache]: Analyzing trace with hash 466610133, now seen corresponding path program 2 times [2021-07-14 20:38:35,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:35,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853258864] [2021-07-14 20:38:35,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:35,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:35,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:35,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853258864] [2021-07-14 20:38:35,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853258864] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:35,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979624413] [2021-07-14 20:38:35,778 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:35,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 20:38:35,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:35,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-14 20:38:35,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:35,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:35,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979624413] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:35,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:35,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-07-14 20:38:35,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420403273] [2021-07-14 20:38:35,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 20:38:35,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:35,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 20:38:35,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-14 20:38:35,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:35,858 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:35,859 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:35,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:35,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:35,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:35,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:35,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:35,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:35,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:35,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:36,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:36,125 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:36,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:36,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1606629040, now seen corresponding path program 2 times [2021-07-14 20:38:36,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:36,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76123109] [2021-07-14 20:38:36,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:36,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:36,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76123109] [2021-07-14 20:38:36,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76123109] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:36,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038560888] [2021-07-14 20:38:36,233 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 [2021-07-14 20:38:36,270 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 20:38:36,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:36,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 20 conjunts are in the unsatisfiable core [2021-07-14 20:38:36,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:36,484 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:36,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 18 [2021-07-14 20:38:36,489 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:38:36,495 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:36,495 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:38:36,496 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:3 [2021-07-14 20:38:36,503 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:36,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038560888] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:36,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:36,504 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-07-14 20:38:36,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314781029] [2021-07-14 20:38:36,505 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 20:38:36,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:36,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 20:38:36,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-07-14 20:38:36,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:36,507 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:36,507 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:36,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:36,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:36,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:36,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:36,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:36,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:36,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:36,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:36,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:36,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:36,864 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-07-14 20:38:36,865 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:36,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:36,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1838514102, now seen corresponding path program 3 times [2021-07-14 20:38:36,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:36,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071535226] [2021-07-14 20:38:36,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:36,933 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:36,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:36,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071535226] [2021-07-14 20:38:36,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071535226] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:36,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066218930] [2021-07-14 20:38:36,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:36,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 20:38:36,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:36,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-14 20:38:36,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:37,162 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:37,163 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 [2021-07-14 20:38:37,186 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:38:37,188 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:37,188 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:38:37,188 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:3 [2021-07-14 20:38:37,196 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:37,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066218930] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:37,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:37,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-07-14 20:38:37,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819166321] [2021-07-14 20:38:37,196 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 20:38:37,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:37,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 20:38:37,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-07-14 20:38:37,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:37,197 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:37,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 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) [2021-07-14 20:38:37,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:37,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:37,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:37,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:37,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:37,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:37,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:37,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:37,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:37,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:37,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:37,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:37,585 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:37,585 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:37,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:37,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1185979119, now seen corresponding path program 4 times [2021-07-14 20:38:37,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:37,585 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384566373] [2021-07-14 20:38:37,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:37,639 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:37,639 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:37,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384566373] [2021-07-14 20:38:37,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384566373] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:37,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233727742] [2021-07-14 20:38:37,640 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 [2021-07-14 20:38:37,668 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 20:38:37,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:37,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 20:38:37,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:37,711 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:37,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233727742] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:37,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:37,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-07-14 20:38:37,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583409970] [2021-07-14 20:38:37,712 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 20:38:37,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:37,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 20:38:37,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-07-14 20:38:37,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:37,712 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:37,713 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:37,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:37,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:37,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:37,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:37,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:37,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:37,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:37,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:37,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:37,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:37,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:37,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:37,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:37,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:38,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-07-14 20:38:38,029 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:38,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:38,030 INFO L82 PathProgramCache]: Analyzing trace with hash 437016432, now seen corresponding path program 5 times [2021-07-14 20:38:38,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:38,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320232396] [2021-07-14 20:38:38,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:38,083 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:38,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:38,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320232396] [2021-07-14 20:38:38,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320232396] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:38,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53545844] [2021-07-14 20:38:38,083 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:38,129 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-07-14 20:38:38,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:38,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 20:38:38,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:38,175 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:38,176 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53545844] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:38,176 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:38,176 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-07-14 20:38:38,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100656352] [2021-07-14 20:38:38,177 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 20:38:38,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:38,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 20:38:38,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-07-14 20:38:38,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:38,178 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:38,178 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:38,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:38,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:38,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:38,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:38,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:38,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:38,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:38,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:38,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-07-14 20:38:38,485 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:38,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:38,486 INFO L82 PathProgramCache]: Analyzing trace with hash 689224309, now seen corresponding path program 6 times [2021-07-14 20:38:38,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:38,486 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102331973] [2021-07-14 20:38:38,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:38,615 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:38,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:38,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102331973] [2021-07-14 20:38:38,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102331973] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:38,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887173734] [2021-07-14 20:38:38,615 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:38,646 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-07-14 20:38:38,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:38,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 29 conjunts are in the unsatisfiable core [2021-07-14 20:38:38,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:38,929 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:38,929 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 [2021-07-14 20:38:38,997 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:38:38,999 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:38,999 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:38:39,001 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-07-14 20:38:39,007 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:39,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887173734] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:39,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:39,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-07-14 20:38:39,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764812017] [2021-07-14 20:38:39,010 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 20:38:39,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:39,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 20:38:39,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-07-14 20:38:39,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:39,011 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:39,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:39,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:39,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:39,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:39,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:39,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:39,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:39,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:39,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:39,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:39,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:39,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:39,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:39,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:39,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:39,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:39,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:39,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:39,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:39,493 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-14 20:38:39,493 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:39,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:39,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1825272913, now seen corresponding path program 7 times [2021-07-14 20:38:39,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:39,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947868149] [2021-07-14 20:38:39,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:39,622 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:39,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:39,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947868149] [2021-07-14 20:38:39,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947868149] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:39,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510171194] [2021-07-14 20:38:39,623 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 [2021-07-14 20:38:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:39,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 31 conjunts are in the unsatisfiable core [2021-07-14 20:38:39,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:39,909 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:39,909 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 [2021-07-14 20:38:40,054 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:38:40,055 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:40,056 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:38:40,056 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:3 [2021-07-14 20:38:40,061 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:40,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510171194] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:40,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:40,061 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-07-14 20:38:40,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830274943] [2021-07-14 20:38:40,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 20:38:40,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:40,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 20:38:40,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-07-14 20:38:40,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:40,064 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:40,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 18 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) [2021-07-14 20:38:40,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:40,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:40,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:40,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:40,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:40,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:40,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:40,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:40,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:40,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:40,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:40,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:40,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-07-14 20:38:40,533 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:40,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:40,533 INFO L82 PathProgramCache]: Analyzing trace with hash -722268650, now seen corresponding path program 8 times [2021-07-14 20:38:40,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:40,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933148046] [2021-07-14 20:38:40,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:40,616 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:40,616 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:40,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933148046] [2021-07-14 20:38:40,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933148046] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:40,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697637229] [2021-07-14 20:38:40,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:40,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 20:38:40,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:40,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 20:38:40,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:40,693 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:40,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697637229] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:40,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:40,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-07-14 20:38:40,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038441705] [2021-07-14 20:38:40,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 20:38:40,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:40,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 20:38:40,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-07-14 20:38:40,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:40,695 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:40,695 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:40,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:40,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:40,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:40,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:40,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:40,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:40,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:40,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:40,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:40,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:40,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:40,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:40,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:40,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:40,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:40,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:40,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:40,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:40,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:40,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:40,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:40,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:41,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-07-14 20:38:41,091 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:41,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:41,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1829691829, now seen corresponding path program 9 times [2021-07-14 20:38:41,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:41,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043270069] [2021-07-14 20:38:41,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:41,159 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:41,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:41,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043270069] [2021-07-14 20:38:41,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043270069] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:41,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604112766] [2021-07-14 20:38:41,160 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 [2021-07-14 20:38:41,186 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 20:38:41,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:41,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 20:38:41,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:41,253 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:41,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604112766] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:41,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:41,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-07-14 20:38:41,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63575190] [2021-07-14 20:38:41,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 20:38:41,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:41,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 20:38:41,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-07-14 20:38:41,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:41,255 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:41,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:41,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:41,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:41,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:41,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:41,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:41,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:41,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:41,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:41,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:41,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:41,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:41,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:41,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:41,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:41,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:41,621 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:41,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:41,621 INFO L82 PathProgramCache]: Analyzing trace with hash 912488656, now seen corresponding path program 10 times [2021-07-14 20:38:41,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:41,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602576135] [2021-07-14 20:38:41,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:41,776 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:41,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:41,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602576135] [2021-07-14 20:38:41,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602576135] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:41,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048640366] [2021-07-14 20:38:41,776 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 [2021-07-14 20:38:41,808 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 20:38:41,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:41,809 WARN L261 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 38 conjunts are in the unsatisfiable core [2021-07-14 20:38:41,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:42,227 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:42,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 31 treesize of output 142 [2021-07-14 20:38:42,573 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:38:42,574 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:42,575 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:38:42,575 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:3 [2021-07-14 20:38:42,580 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:42,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048640366] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:42,580 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:42,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-07-14 20:38:42,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220014245] [2021-07-14 20:38:42,581 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 20:38:42,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:42,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 20:38:42,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-07-14 20:38:42,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:42,582 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:42,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.36) internal successors, (34), 24 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:42,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:42,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:42,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:42,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:42,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:42,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:42,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:42,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:42,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:42,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:42,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:42,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:42,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:43,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:43,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:43,245 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-07-14 20:38:43,245 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:43,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:43,246 INFO L82 PathProgramCache]: Analyzing trace with hash 50357590, now seen corresponding path program 11 times [2021-07-14 20:38:43,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:43,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016518040] [2021-07-14 20:38:43,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:43,380 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:43,380 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:43,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016518040] [2021-07-14 20:38:43,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016518040] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:43,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445040963] [2021-07-14 20:38:43,380 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 [2021-07-14 20:38:43,414 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-14 20:38:43,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:43,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-14 20:38:43,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:43,865 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:43,865 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 [2021-07-14 20:38:44,590 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:38:44,592 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:44,593 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:38:44,593 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:3 [2021-07-14 20:38:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:44,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445040963] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:44,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:44,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-07-14 20:38:44,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943380532] [2021-07-14 20:38:44,598 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 20:38:44,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:44,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 20:38:44,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-07-14 20:38:44,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:44,599 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:44,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:44,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:44,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:44,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:44,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:44,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:44,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:44,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:44,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:44,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:44,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:44,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:44,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:44,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:44,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:45,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:45,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:38:45,331 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:45,331 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:45,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:45,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1587702095, now seen corresponding path program 12 times [2021-07-14 20:38:45,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:45,332 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291262785] [2021-07-14 20:38:45,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:45,436 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:45,436 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:45,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291262785] [2021-07-14 20:38:45,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291262785] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:45,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435453084] [2021-07-14 20:38:45,437 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 [2021-07-14 20:38:45,469 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-07-14 20:38:45,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:45,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 20:38:45,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:45,526 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:45,527 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435453084] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:45,527 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:45,527 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-07-14 20:38:45,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642194067] [2021-07-14 20:38:45,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-14 20:38:45,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:45,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-14 20:38:45,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-07-14 20:38:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:45,528 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:45,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:45,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:45,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:45,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:45,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:45,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:45,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:45,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:45,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:45,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:45,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:45,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:45,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:45,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:45,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:38:45,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:45,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:38:45,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:45,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable200 [2021-07-14 20:38:45,973 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:45,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:45,974 INFO L82 PathProgramCache]: Analyzing trace with hash -905901680, now seen corresponding path program 13 times [2021-07-14 20:38:45,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:45,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839805720] [2021-07-14 20:38:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:46,070 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:46,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:46,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839805720] [2021-07-14 20:38:46,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839805720] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:46,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009996770] [2021-07-14 20:38:46,070 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 [2021-07-14 20:38:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:46,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 20:38:46,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:46,160 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:46,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009996770] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:46,160 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:46,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-07-14 20:38:46,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115125446] [2021-07-14 20:38:46,161 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-14 20:38:46,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:46,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-14 20:38:46,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-07-14 20:38:46,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:46,163 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:46,163 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:46,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:46,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:46,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:46,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:46,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:46,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:46,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:46,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:46,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:46,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:46,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:46,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:46,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:46,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:38:46,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:46,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:46,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:46,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:46,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:46,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:46,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:46,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:38:46,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:46,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:38:46,543 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable201 [2021-07-14 20:38:46,543 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:46,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:46,544 INFO L82 PathProgramCache]: Analyzing trace with hash 2008435797, now seen corresponding path program 14 times [2021-07-14 20:38:46,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:46,544 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91917718] [2021-07-14 20:38:46,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:46,777 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:46,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:46,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91917718] [2021-07-14 20:38:46,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91917718] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:46,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055482828] [2021-07-14 20:38:46,780 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 [2021-07-14 20:38:46,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 20:38:46,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:46,814 WARN L261 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 47 conjunts are in the unsatisfiable core [2021-07-14 20:38:46,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:47,394 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-07-14 20:38:47,395 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:47,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 39 treesize of output 252 [2021-07-14 20:38:49,050 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 206 [2021-07-14 20:38:49,605 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:38:49,607 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:49,607 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:38:49,607 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-07-14 20:38:49,612 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:49,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055482828] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:49,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:49,613 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-07-14 20:38:49,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127117402] [2021-07-14 20:38:49,613 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-07-14 20:38:49,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:49,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-07-14 20:38:49,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2021-07-14 20:38:49,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:49,614 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:49,615 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:49,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:38:49,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:50,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:38:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:50,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:38:50,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:50,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable202 [2021-07-14 20:38:50,570 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:50,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:50,570 INFO L82 PathProgramCache]: Analyzing trace with hash -2128688625, now seen corresponding path program 15 times [2021-07-14 20:38:50,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:50,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991903739] [2021-07-14 20:38:50,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:50,788 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:50,789 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:50,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991903739] [2021-07-14 20:38:50,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991903739] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:50,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141152729] [2021-07-14 20:38:50,789 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 [2021-07-14 20:38:50,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-14 20:38:50,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:50,833 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 49 conjunts are in the unsatisfiable core [2021-07-14 20:38:50,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:51,401 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-07-14 20:38:51,402 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:51,402 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 [2021-07-14 20:38:52,331 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 188 [2021-07-14 20:38:52,435 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 213 [2021-07-14 20:38:52,543 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 231 [2021-07-14 20:38:52,721 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 269 [2021-07-14 20:38:53,595 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 192 [2021-07-14 20:38:53,708 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 214 [2021-07-14 20:38:53,852 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 247 [2021-07-14 20:38:54,155 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 378 [2021-07-14 20:38:54,447 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 378 [2021-07-14 20:38:54,771 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 472 DAG size of output: 387 [2021-07-14 20:38:55,197 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 257 [2021-07-14 20:38:56,008 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 258 [2021-07-14 20:38:56,145 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 258 [2021-07-14 20:38:56,335 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 282 [2021-07-14 20:38:57,125 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 210 [2021-07-14 20:38:57,526 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:38:57,528 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:38:57,528 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:38:57,528 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:3 [2021-07-14 20:38:57,533 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:57,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141152729] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:57,533 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:57,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-07-14 20:38:57,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364832141] [2021-07-14 20:38:57,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-07-14 20:38:57,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:57,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-07-14 20:38:57,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-07-14 20:38:57,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:57,534 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:57,534 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:57,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:57,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:58,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:58,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:58,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:58,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:38:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:38:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 20:38:58,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable444 [2021-07-14 20:38:58,372 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:58,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:58,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1538221130, now seen corresponding path program 16 times [2021-07-14 20:38:58,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:58,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335759596] [2021-07-14 20:38:58,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:58,495 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:58,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:58,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335759596] [2021-07-14 20:38:58,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335759596] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:58,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412305992] [2021-07-14 20:38:58,495 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 [2021-07-14 20:38:58,526 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 20:38:58,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:58,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-14 20:38:58,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:58,601 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:58,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412305992] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:58,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:58,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-07-14 20:38:58,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655777685] [2021-07-14 20:38:58,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 20:38:58,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:58,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 20:38:58,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-07-14 20:38:58,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:58,604 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:58,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.5) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:58,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:58,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:58,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:58,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 20:38:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:58,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:38:58,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:58,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:38:58,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:58,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 20:38:58,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 20:38:59,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable904,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:59,109 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:59,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:59,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1530526827, now seen corresponding path program 17 times [2021-07-14 20:38:59,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:59,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325428135] [2021-07-14 20:38:59,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:38:59,233 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:59,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:38:59,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325428135] [2021-07-14 20:38:59,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325428135] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:59,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237916377] [2021-07-14 20:38:59,234 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 [2021-07-14 20:38:59,263 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 20:38:59,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:38:59,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-14 20:38:59,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:38:59,322 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 45 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:38:59,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237916377] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:38:59,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:38:59,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-07-14 20:38:59,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787735219] [2021-07-14 20:38:59,323 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 20:38:59,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:38:59,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 20:38:59,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-07-14 20:38:59,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:59,324 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:38:59,324 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.5) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:38:59,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:59,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:59,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:59,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:59,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:59,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:38:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:38:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 20:38:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 20:38:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:38:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:38:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:38:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:38:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:38:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:38:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:38:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:38:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:38:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:38:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:38:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:38:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:38:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 20:38:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 20:38:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:38:59,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable905,21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:38:59,749 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:38:59,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:38:59,749 INFO L82 PathProgramCache]: Analyzing trace with hash -175074576, now seen corresponding path program 18 times [2021-07-14 20:38:59,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:38:59,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273420404] [2021-07-14 20:38:59,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:38:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:39:00,026 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:39:00,026 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:39:00,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273420404] [2021-07-14 20:39:00,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273420404] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:39:00,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476635582] [2021-07-14 20:39:00,027 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 [2021-07-14 20:39:00,062 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 20:39:00,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:39:00,063 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 56 conjunts are in the unsatisfiable core [2021-07-14 20:39:00,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:39:00,847 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-07-14 20:39:00,847 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:39:00,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 19 new quantified variables, introduced 45 case distinctions, treesize of input 47 treesize of output 394 [2021-07-14 20:39:01,907 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 265 [2021-07-14 20:39:02,080 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 286 [2021-07-14 20:39:02,259 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 286 [2021-07-14 20:39:02,456 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 298 [2021-07-14 20:39:02,840 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 419 [2021-07-14 20:39:03,050 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 367 [2021-07-14 20:39:03,301 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 330 [2021-07-14 20:39:03,519 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 298 [2021-07-14 20:39:03,969 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 261 [2021-07-14 20:39:04,084 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 218 [2021-07-14 20:39:04,763 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 451 DAG size of output: 358 [2021-07-14 20:39:05,004 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 329 [2021-07-14 20:39:05,121 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 245 [2021-07-14 20:39:06,316 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 356 [2021-07-14 20:39:06,770 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 494 [2021-07-14 20:39:06,974 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 304 [2021-07-14 20:39:07,852 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 239 [2021-07-14 20:39:08,376 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 245 [2021-07-14 20:39:08,846 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 207 [2021-07-14 20:39:09,032 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 219 [2021-07-14 20:39:09,296 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 531 DAG size of output: 342 [2021-07-14 20:39:10,069 WARN L205 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 1046 DAG size of output: 658 [2021-07-14 20:39:10,843 WARN L205 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 1046 DAG size of output: 658 [2021-07-14 20:39:11,696 WARN L205 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 1050 DAG size of output: 663 [2021-07-14 20:39:12,708 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 665 DAG size of output: 835 [2021-07-14 20:39:12,883 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 401 DAG size of output: 361 [2021-07-14 20:39:13,821 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 271 [2021-07-14 20:39:14,161 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 538 [2021-07-14 20:39:14,664 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 342 [2021-07-14 20:39:15,146 WARN L205 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 792 DAG size of output: 458 [2021-07-14 20:39:15,637 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 792 DAG size of output: 458 [2021-07-14 20:39:16,180 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 797 DAG size of output: 465 [2021-07-14 20:39:16,746 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 467 DAG size of output: 616 [2021-07-14 20:39:16,997 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 373 [2021-07-14 20:39:17,200 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 375 [2021-07-14 20:39:17,405 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 343 [2021-07-14 20:39:18,166 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 277 [2021-07-14 20:39:18,805 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 594 DAG size of output: 380 [2021-07-14 20:39:19,088 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 437 [2021-07-14 20:39:19,845 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 197 [2021-07-14 20:39:20,315 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 899 DAG size of output: 562 [2021-07-14 20:39:20,832 WARN L205 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 436 [2021-07-14 20:39:21,861 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 385 DAG size of output: 254 [2021-07-14 20:39:22,797 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 422 [2021-07-14 20:39:23,898 WARN L205 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 819 DAG size of output: 545 [2021-07-14 20:39:24,943 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 1551 DAG size of output: 952 [2021-07-14 20:39:25,998 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 1551 DAG size of output: 952 [2021-07-14 20:39:27,113 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 1554 DAG size of output: 954 [2021-07-14 20:39:27,279 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 954 DAG size of output: 611 [2021-07-14 20:39:27,620 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 419 DAG size of output: 447 [2021-07-14 20:39:28,320 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 294 [2021-07-14 20:39:28,495 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 336 [2021-07-14 20:39:28,662 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 336 [2021-07-14 20:39:28,842 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 634 DAG size of output: 338 [2021-07-14 20:39:29,014 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 321 [2021-07-14 20:39:29,353 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:39:29,354 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:39:29,355 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:39:29,355 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:3 [2021-07-14 20:39:29,360 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:39:29,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476635582] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:39:29,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:39:29,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2021-07-14 20:39:29,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219250895] [2021-07-14 20:39:29,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-14 20:39:29,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:39:29,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-14 20:39:29,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1241, Unknown=0, NotChecked=0, Total=1332 [2021-07-14 20:39:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:39:29,361 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:39:29,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 36 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:39:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:39:29,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 20:39:29,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-14 20:39:29,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:39:29,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:39:30,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 20:39:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 20:39:30,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 20:39:30,498 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable906,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:39:30,499 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:39:30,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:39:30,499 INFO L82 PathProgramCache]: Analyzing trace with hash -867204362, now seen corresponding path program 19 times [2021-07-14 20:39:30,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:39:30,499 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803083282] [2021-07-14 20:39:30,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:39:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:39:30,738 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:39:30,738 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:39:30,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803083282] [2021-07-14 20:39:30,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803083282] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:39:30,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887515553] [2021-07-14 20:39:30,738 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 [2021-07-14 20:39:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:39:30,769 WARN L261 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 58 conjunts are in the unsatisfiable core [2021-07-14 20:39:30,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:39:31,567 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2021-07-14 20:39:31,567 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:39:31,568 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 [2021-07-14 20:39:32,967 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 351 [2021-07-14 20:39:33,140 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 372 [2021-07-14 20:39:33,340 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 590 DAG size of output: 408 [2021-07-14 20:39:34,698 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 389 [2021-07-14 20:39:34,899 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 591 DAG size of output: 409 [2021-07-14 20:39:35,134 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 627 DAG size of output: 445 [2021-07-14 20:39:35,683 WARN L205 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 1091 DAG size of output: 727 [2021-07-14 20:39:36,228 WARN L205 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 1110 DAG size of output: 728 [2021-07-14 20:39:36,893 WARN L205 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 1134 DAG size of output: 753 [2021-07-14 20:39:37,730 WARN L205 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 1155 DAG size of output: 775 [2021-07-14 20:39:38,605 WARN L205 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 1175 DAG size of output: 796 [2021-07-14 20:39:39,483 WARN L205 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 1175 DAG size of output: 796 [2021-07-14 20:39:40,527 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 1192 DAG size of output: 813 [2021-07-14 20:39:42,806 WARN L205 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 815 DAG size of output: 982 [2021-07-14 20:39:44,528 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 786 DAG size of output: 884 [2021-07-14 20:39:45,569 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 765 DAG size of output: 798 [2021-07-14 20:39:47,142 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 754 DAG size of output: 1042 [2021-07-14 20:39:48,003 WARN L205 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 741 DAG size of output: 844 [2021-07-14 20:39:48,330 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 317 [2021-07-14 20:39:49,318 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 179 [2021-07-14 20:39:49,434 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 256 [2021-07-14 20:39:49,584 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 248 [2021-07-14 20:39:50,630 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 230 [2021-07-14 20:39:50,816 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 252 [2021-07-14 20:39:51,015 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 259 [2021-07-14 20:39:51,869 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 199 [2021-07-14 20:39:52,189 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 331 [2021-07-14 20:39:52,597 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 350 [2021-07-14 20:39:53,743 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 213 [2021-07-14 20:39:53,908 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 217 [2021-07-14 20:39:54,437 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 385 DAG size of output: 246 [2021-07-14 20:39:54,923 WARN L205 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 763 DAG size of output: 331 [2021-07-14 20:39:55,088 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 262 [2021-07-14 20:39:55,311 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 324 [2021-07-14 20:39:55,472 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 244 [2021-07-14 20:39:56,108 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 257 [2021-07-14 20:39:56,391 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 218 [2021-07-14 20:39:56,522 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 210 [2021-07-14 20:39:56,679 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 228 [2021-07-14 20:39:56,841 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 241 [2021-07-14 20:39:57,467 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 210 [2021-07-14 20:39:58,104 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 238 [2021-07-14 20:39:58,272 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 282 [2021-07-14 20:39:58,509 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 421 DAG size of output: 300 [2021-07-14 20:39:58,838 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 640 DAG size of output: 296 [2021-07-14 20:40:00,209 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 216 [2021-07-14 20:40:00,371 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 235 [2021-07-14 20:40:00,844 WARN L205 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 834 DAG size of output: 313 [2021-07-14 20:40:01,910 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 1222 DAG size of output: 455 [2021-07-14 20:40:03,410 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1424 DAG size of output: 577 [2021-07-14 20:40:03,595 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 277 [2021-07-14 20:40:03,796 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 283 [2021-07-14 20:40:03,947 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 273 [2021-07-14 20:40:04,796 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 239 [2021-07-14 20:40:04,978 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 285 [2021-07-14 20:40:05,335 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 219 [2021-07-14 20:40:05,509 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 198 [2021-07-14 20:40:06,301 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 247 [2021-07-14 20:40:06,548 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 311 [2021-07-14 20:40:07,619 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 186 [2021-07-14 20:40:07,831 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 201 [2021-07-14 20:40:08,328 WARN L205 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 400 [2021-07-14 20:40:08,959 WARN L205 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 592 DAG size of output: 483 [2021-07-14 20:40:09,708 WARN L205 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 720 DAG size of output: 507 [2021-07-14 20:40:11,118 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 251 [2021-07-14 20:40:11,284 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 272 [2021-07-14 20:40:11,517 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 392 DAG size of output: 285 [2021-07-14 20:40:11,799 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 288 [2021-07-14 20:40:12,526 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 226 [2021-07-14 20:40:12,986 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 208 [2021-07-14 20:40:13,237 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 282 [2021-07-14 20:40:13,771 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 216 [2021-07-14 20:40:14,125 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 466 DAG size of output: 311 [2021-07-14 20:40:14,497 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 521 DAG size of output: 354 [2021-07-14 20:40:15,526 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 217 [2021-07-14 20:40:15,689 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 217 [2021-07-14 20:40:16,345 WARN L205 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 451 [2021-07-14 20:40:17,091 WARN L205 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 723 DAG size of output: 463 [2021-07-14 20:40:18,401 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1029 DAG size of output: 672 [2021-07-14 20:40:20,588 WARN L205 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 1517 DAG size of output: 968 [2021-07-14 20:40:21,583 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 286 [2021-07-14 20:40:21,749 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 287 [2021-07-14 20:40:22,410 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 450 DAG size of output: 312 [2021-07-14 20:40:23,120 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 325 [2021-07-14 20:40:23,491 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 474 DAG size of output: 328 [2021-07-14 20:40:23,631 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 248 [2021-07-14 20:40:24,615 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 288 [2021-07-14 20:40:25,486 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 171 [2021-07-14 20:40:25,690 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2021-07-14 20:40:26,130 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 373 [2021-07-14 20:40:27,166 WARN L205 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 516 DAG size of output: 452 [2021-07-14 20:40:27,766 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 211 [2021-07-14 20:40:28,241 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 235 [2021-07-14 20:40:28,497 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 297 [2021-07-14 20:40:29,075 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 227 [2021-07-14 20:40:29,514 WARN L205 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 393 [2021-07-14 20:40:29,962 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 474 DAG size of output: 397 [2021-07-14 20:40:30,804 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 222 [2021-07-14 20:40:31,152 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 264 [2021-07-14 20:40:31,996 WARN L205 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 541 [2021-07-14 20:40:33,061 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 680 DAG size of output: 566 [2021-07-14 20:40:34,632 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1012 DAG size of output: 839 [2021-07-14 20:40:37,069 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 1410 DAG size of output: 1099 [2021-07-14 20:40:42,174 WARN L205 SmtUtils]: Spent 5.10 s on a formula simplification. DAG size of input: 2226 DAG size of output: 1704 [2021-07-14 20:40:48,935 WARN L205 SmtUtils]: Spent 6.75 s on a formula simplification. DAG size of input: 3213 DAG size of output: 1793 [2021-07-14 20:40:57,317 WARN L205 SmtUtils]: Spent 8.36 s on a formula simplification. DAG size of input: 3741 DAG size of output: 2301 [2021-07-14 20:41:07,091 WARN L205 SmtUtils]: Spent 9.76 s on a formula simplification. DAG size of input: 4093 DAG size of output: 2511 [2021-07-14 20:41:08,400 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 739 DAG size of output: 1024 [2021-07-14 20:41:09,255 WARN L205 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 826 [2021-07-14 20:41:09,425 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 281 [2021-07-14 20:41:09,670 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 294 [2021-07-14 20:41:10,986 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 243 [2021-07-14 20:41:11,483 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 284 [2021-07-14 20:41:12,140 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 243 [2021-07-14 20:41:12,272 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 243 [2021-07-14 20:41:12,763 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 212 [2021-07-14 20:41:13,216 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 243 [2021-07-14 20:41:13,475 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 311 [2021-07-14 20:41:13,721 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 311 [2021-07-14 20:41:14,168 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 457 DAG size of output: 428 [2021-07-14 20:41:14,938 WARN L205 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 566 [2021-07-14 20:41:15,672 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 156 [2021-07-14 20:41:15,861 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2021-07-14 20:41:16,845 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 239 [2021-07-14 20:41:17,089 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 291 [2021-07-14 20:41:17,547 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 392 [2021-07-14 20:41:18,925 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 859 DAG size of output: 794 [2021-07-14 20:41:20,502 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1020 DAG size of output: 881 [2021-07-14 20:41:20,820 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 235 [2021-07-14 20:41:20,979 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 297 [2021-07-14 20:41:21,108 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 236 [2021-07-14 20:41:21,335 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 244 [2021-07-14 20:41:21,999 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 207 [2021-07-14 20:41:22,287 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 334 [2021-07-14 20:41:22,781 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 209 [2021-07-14 20:41:22,899 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 226 [2021-07-14 20:41:23,444 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 310 [2021-07-14 20:41:24,047 WARN L205 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 478 DAG size of output: 446 [2021-07-14 20:41:24,239 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 195 [2021-07-14 20:41:24,998 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 256 [2021-07-14 20:41:25,393 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 308 [2021-07-14 20:41:26,204 WARN L205 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 695 DAG size of output: 508 [2021-07-14 20:41:26,869 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 156 [2021-07-14 20:41:27,027 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 173 [2021-07-14 20:41:27,281 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 215 [2021-07-14 20:41:27,845 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 205 [2021-07-14 20:41:28,545 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 262 [2021-07-14 20:41:29,133 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 284 [2021-07-14 20:41:29,499 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 348 [2021-07-14 20:41:30,768 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 994 DAG size of output: 708 [2021-07-14 20:41:32,264 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1148 DAG size of output: 774 [2021-07-14 20:41:35,692 WARN L205 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 1747 DAG size of output: 1412 [2021-07-14 20:41:35,811 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 253 [2021-07-14 20:41:35,962 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 259 [2021-07-14 20:41:36,073 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 256 [2021-07-14 20:41:36,950 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 190 [2021-07-14 20:41:37,831 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 182 [2021-07-14 20:41:37,946 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 203 [2021-07-14 20:41:38,144 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 249 [2021-07-14 20:41:38,349 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 321 [2021-07-14 20:41:38,528 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 260 [2021-07-14 20:41:38,848 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 192 [2021-07-14 20:41:39,225 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 249 [2021-07-14 20:41:39,399 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 271 [2021-07-14 20:41:39,680 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 251 [2021-07-14 20:41:40,155 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 251 [2021-07-14 20:41:40,336 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 274 [2021-07-14 20:41:40,589 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 321 [2021-07-14 20:41:40,727 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 238 [2021-07-14 20:41:41,350 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 253 [2021-07-14 20:41:41,731 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 213 [2021-07-14 20:41:41,925 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 242 [2021-07-14 20:41:42,194 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 265 [2021-07-14 20:41:42,607 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 330 [2021-07-14 20:41:43,214 WARN L205 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 911 DAG size of output: 360 [2021-07-14 20:41:43,355 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 245 [2021-07-14 20:41:44,301 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 225 [2021-07-14 20:41:45,274 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 261 [2021-07-14 20:41:45,485 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 283 [2021-07-14 20:41:45,706 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 283 [2021-07-14 20:41:46,061 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 504 DAG size of output: 357 [2021-07-14 20:41:46,568 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 560 DAG size of output: 385 [2021-07-14 20:41:47,554 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 218 [2021-07-14 20:41:47,801 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 242 [2021-07-14 20:41:48,297 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 743 DAG size of output: 350 [2021-07-14 20:41:49,547 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1315 DAG size of output: 518 [2021-07-14 20:41:54,867 WARN L205 SmtUtils]: Spent 5.31 s on a formula simplification. DAG size of input: 2765 DAG size of output: 1722 [2021-07-14 20:42:00,830 WARN L205 SmtUtils]: Spent 5.95 s on a formula simplification. DAG size of input: 2888 DAG size of output: 1777 [2021-07-14 20:42:08,374 WARN L205 SmtUtils]: Spent 7.53 s on a formula simplification. DAG size of input: 3423 DAG size of output: 2286 [2021-07-14 20:42:17,410 WARN L205 SmtUtils]: Spent 9.02 s on a formula simplification. DAG size of input: 3768 DAG size of output: 2589 [2021-07-14 20:42:18,408 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 242 [2021-07-14 20:42:19,292 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 227 [2021-07-14 20:42:19,454 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 257 [2021-07-14 20:42:20,530 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 255 [2021-07-14 20:42:20,694 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 268 [2021-07-14 20:42:20,878 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 266 [2021-07-14 20:42:21,176 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 348 [2021-07-14 20:42:22,071 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 488 DAG size of output: 411 [2021-07-14 20:42:22,677 WARN L205 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 475 [2021-07-14 20:42:23,419 WARN L205 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 616 DAG size of output: 486 [2021-07-14 20:42:24,283 WARN L205 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 626 DAG size of output: 495 [2021-07-14 20:42:25,877 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 223 [2021-07-14 20:42:26,003 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 237 [2021-07-14 20:42:26,164 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 235 [2021-07-14 20:42:26,389 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 303 [2021-07-14 20:42:27,121 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 446 DAG size of output: 350 [2021-07-14 20:42:27,901 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 194 [2021-07-14 20:42:28,291 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 538 DAG size of output: 386 [2021-07-14 20:42:28,849 WARN L205 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 550 DAG size of output: 399 [2021-07-14 20:42:30,450 WARN L205 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 1065 DAG size of output: 745 [2021-07-14 20:42:32,155 WARN L205 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 1077 DAG size of output: 744 [2021-07-14 20:42:34,132 WARN L205 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 1098 DAG size of output: 750 [2021-07-14 20:42:46,605 WARN L205 SmtUtils]: Spent 12.46 s on a formula simplification. DAG size of input: 4707 DAG size of output: 3202 [2021-07-14 20:43:10,478 WARN L205 SmtUtils]: Spent 23.85 s on a formula simplification. DAG size of input: 6894 DAG size of output: 4324 [2021-07-14 20:43:37,397 WARN L205 SmtUtils]: Spent 26.88 s on a formula simplification. DAG size of input: 7322 DAG size of output: 4477 [2021-07-14 20:43:38,560 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 552 DAG size of output: 317 [2021-07-14 20:43:38,725 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 343 [2021-07-14 20:43:40,156 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 378 [2021-07-14 20:43:40,378 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 629 DAG size of output: 404 [2021-07-14 20:43:40,804 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 1107 DAG size of output: 627 [2021-07-14 20:43:41,308 WARN L205 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 1134 DAG size of output: 654 [2021-07-14 20:44:11,790 WARN L205 SmtUtils]: Spent 30.47 s on a formula simplification. DAG size of input: 8002 DAG size of output: 4954 [2021-07-14 20:44:46,057 WARN L205 SmtUtils]: Spent 34.23 s on a formula simplification. DAG size of input: 8427 DAG size of output: 5282 [2021-07-14 20:45:20,580 WARN L205 SmtUtils]: Spent 34.48 s on a formula simplification. DAG size of input: 8427 DAG size of output: 5282 [2021-07-14 20:45:58,901 WARN L205 SmtUtils]: Spent 38.29 s on a formula simplification. DAG size of input: 8440 DAG size of output: 5295 [2021-07-14 20:46:56,178 WARN L205 SmtUtils]: Spent 57.24 s on a formula simplification. DAG size of input: 5297 DAG size of output: 7538 [2021-07-14 20:47:58,050 WARN L205 SmtUtils]: Spent 1.03 m on a formula simplification. DAG size of input: 4323 DAG size of output: 6374 [2021-07-14 20:48:57,528 WARN L205 SmtUtils]: Spent 59.44 s on a formula simplification. DAG size of input: 3823 DAG size of output: 4222 [2021-07-14 20:49:05,206 WARN L205 SmtUtils]: Spent 7.66 s on a formula simplification. DAG size of input: 1942 DAG size of output: 1778 [2021-07-14 20:49:18,468 WARN L205 SmtUtils]: Spent 13.25 s on a formula simplification. DAG size of input: 1680 DAG size of output: 1578 [2021-07-14 20:49:18,743 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 1450 [2021-07-14 20:49:27,418 WARN L205 SmtUtils]: Spent 8.67 s on a formula simplification. DAG size of input: 1347 DAG size of output: 1954 [2021-07-14 20:49:27,933 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 1150 DAG size of output: 1150 [2021-07-14 20:49:28,312 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 1034 DAG size of output: 1034 [2021-07-14 20:49:33,144 WARN L205 SmtUtils]: Spent 4.29 s on a formula simplification. DAG size of input: 981 DAG size of output: 1395 [2021-07-14 20:49:33,260 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 872 [2021-07-14 20:49:33,387 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 595 DAG size of output: 595 [2021-07-14 20:49:34,504 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 396 DAG size of output: 272 [2021-07-14 20:49:34,968 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 331 [2021-07-14 20:49:35,267 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 377 [2021-07-14 20:49:36,400 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 778 DAG size of output: 472 [2021-07-14 20:49:36,507 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 535 [2021-07-14 20:49:36,998 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 187 [2021-07-14 20:49:37,368 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 266 [2021-07-14 20:49:38,487 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 289 [2021-07-14 20:49:38,770 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 337 [2021-07-14 20:49:39,142 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 399 [2021-07-14 20:49:39,632 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 752 DAG size of output: 473 [2021-07-14 20:49:40,751 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 1245 DAG size of output: 754 [2021-07-14 20:49:40,973 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 778 DAG size of output: 778 [2021-07-14 20:49:42,265 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 244 [2021-07-14 20:49:42,463 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 279 [2021-07-14 20:49:42,979 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 549 DAG size of output: 355 [2021-07-14 20:49:43,341 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 624 DAG size of output: 427 [2021-07-14 20:49:43,453 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 556 DAG size of output: 556 [2021-07-14 20:49:45,121 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 216 [2021-07-14 20:49:45,572 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 294 [2021-07-14 20:49:45,855 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 518 DAG size of output: 361 [2021-07-14 20:49:46,236 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 710 DAG size of output: 434 [2021-07-14 20:49:47,147 WARN L205 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 1001 DAG size of output: 614 [2021-07-14 20:49:49,382 WARN L205 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 1979 DAG size of output: 1146 [2021-07-14 20:49:52,121 WARN L205 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 2136 DAG size of output: 1241 [2021-07-14 20:49:55,361 WARN L205 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 2252 DAG size of output: 1326 [2021-07-14 20:50:00,813 WARN L205 SmtUtils]: Spent 5.44 s on a formula simplification. DAG size of input: 3080 DAG size of output: 1978 [2021-07-14 20:50:01,207 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 294 [2021-07-14 20:50:01,421 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 228 [2021-07-14 20:50:01,997 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 216 [2021-07-14 20:50:02,810 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 227 [2021-07-14 20:50:03,065 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 301 [2021-07-14 20:50:03,434 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 547 DAG size of output: 370 [2021-07-14 20:50:09,724 WARN L205 SmtUtils]: Spent 6.28 s on a formula simplification. DAG size of input: 3478 DAG size of output: 2225 [2021-07-14 20:50:10,376 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 431 [2021-07-14 20:50:11,122 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 243 [2021-07-14 20:50:11,280 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 237 [2021-07-14 20:50:11,504 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 247 [2021-07-14 20:50:11,611 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 217 [2021-07-14 20:50:12,244 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 238 [2021-07-14 20:50:12,367 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 241 [2021-07-14 20:50:12,523 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 266 [2021-07-14 20:50:13,174 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 241 [2021-07-14 20:50:13,337 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 397 DAG size of output: 310 [2021-07-14 20:50:13,538 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 316 [2021-07-14 20:50:13,922 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 411 [2021-07-14 20:50:14,593 WARN L205 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 797 DAG size of output: 543 [2021-07-14 20:50:15,444 WARN L205 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 909 DAG size of output: 604 [2021-07-14 20:50:23,246 WARN L205 SmtUtils]: Spent 7.79 s on a formula simplification. DAG size of input: 4146 DAG size of output: 2641 [2021-07-14 20:50:32,149 WARN L205 SmtUtils]: Spent 8.88 s on a formula simplification. DAG size of input: 4264 DAG size of output: 2757 [2021-07-14 20:50:50,100 WARN L205 SmtUtils]: Spent 17.92 s on a formula simplification. DAG size of input: 6395 DAG size of output: 4339 [2021-07-14 20:51:16,550 WARN L205 SmtUtils]: Spent 26.40 s on a formula simplification. DAG size of input: 4239 DAG size of output: 3919 [2021-07-14 20:52:30,368 WARN L205 SmtUtils]: Spent 1.23 m on a formula simplification. DAG size of input: 3721 DAG size of output: 4036 [2021-07-14 20:52:48,807 WARN L205 SmtUtils]: Spent 18.40 s on a formula simplification. DAG size of input: 1864 DAG size of output: 1732 [2021-07-14 20:52:49,231 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 306 [2021-07-14 20:52:49,453 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 236 [2021-07-14 20:52:49,561 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 212 [2021-07-14 20:52:50,597 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 278 [2021-07-14 20:52:50,844 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 440 DAG size of output: 322 [2021-07-14 20:52:50,993 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 201 [2021-07-14 20:52:51,816 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 254 [2021-07-14 20:52:52,047 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 271 [2021-07-14 20:52:52,337 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 290 [2021-07-14 20:52:53,193 WARN L205 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 477 [2021-07-14 20:52:53,907 WARN L205 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 1605 DAG size of output: 1605 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown