/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-NewStatesSleepPersistent-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 12:53:48,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 12:53:48,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 12:53:48,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 12:53:48,315 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe-Lockstep.epf [2021-07-14 12:53:48,330 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 12:53:48,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 12:53:48,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 12:53:48,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 12:53:48,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 12:53:48,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 12:53:48,331 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 12:53:48,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 12:53:48,332 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 12:53:48,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 12:53:48,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 12:53:48,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 12:53:48,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 12:53:48,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 12:53:48,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 12:53:48,332 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 12:53:48,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 12:53:48,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 12:53:48,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 12:53:48,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 12:53:48,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 12:53:48,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 12:53:48,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 12:53:48,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 12:53:48,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 12:53:48,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 12:53:48,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 12:53:48,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 12:53:48,334 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 12:53:48,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 12:53:48,334 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 12:53:48,334 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 12:53:48,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 12:53:48,334 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-07-14 12:53:48,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 12:53:48,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 12:53:48,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 12:53:48,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 12:53:48,616 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 12:53:48,617 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 12:53:48,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-2.wvr.bpl [2021-07-14 12:53:48,617 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-2.wvr.bpl' [2021-07-14 12:53:48,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 12:53:48,649 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 12:53:48,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 12:53:48,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 12:53:48,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 12:53:48,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 12:53:48" (1/1) ... [2021-07-14 12:53:48,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 12:53:48" (1/1) ... [2021-07-14 12:53:48,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 12:53:48,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 12:53:48,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 12:53:48,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 12:53:48,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 12:53:48" (1/1) ... [2021-07-14 12:53:48,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 12:53:48" (1/1) ... [2021-07-14 12:53:48,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 12:53:48" (1/1) ... [2021-07-14 12:53:48,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 12:53:48" (1/1) ... [2021-07-14 12:53:48,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 12:53:48" (1/1) ... [2021-07-14 12:53:48,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 12:53:48" (1/1) ... [2021-07-14 12:53:48,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 12:53:48" (1/1) ... [2021-07-14 12:53:48,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 12:53:48,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 12:53:48,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 12:53:48,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 12:53:48,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 12:53:48" (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 12:53:48,747 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 12:53:48,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 12:53:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 12:53:48,747 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 12:53:48,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 12:53:48,748 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 12:53:48,748 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 12:53:48,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 12:53:48,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 12:53:48,750 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 12:53:48,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 12:53:48,907 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-07-14 12:53:48,908 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-07-14 12:53:48,908 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-07-14 12:53:48,909 INFO L202 PluginConnector]: Adding new model unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:53:48 BoogieIcfgContainer [2021-07-14 12:53:48,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 12:53:48,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 12:53:48,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 12:53:48,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 12:53:48,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 12:53:48" (1/2) ... [2021-07-14 12:53:48,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252d5287 and model type unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:53:48, skipping insertion in model container [2021-07-14 12:53:48,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:53:48" (2/2) ... [2021-07-14 12:53:48,914 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-2.wvr.bpl [2021-07-14 12:53:48,918 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 12:53:48,918 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 12:53:48,918 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 12:53:48,919 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 12:53:48,938 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-14 12:53:48,954 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 12:53:48,990 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 12:53:48,990 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 12:53:48,990 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 12:53:48,990 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 12:53:48,991 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 12:53:48,991 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 12:53:48,991 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 12:53:48,991 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 12:53:49,023 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:53:49,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:53:49,027 INFO L82 PathProgramCache]: Analyzing trace with hash -836581838, now seen corresponding path program 1 times [2021-07-14 12:53:49,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:53:49,033 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316787872] [2021-07-14 12:53:49,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:53:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:49,136 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 12:53:49,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:53:49,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316787872] [2021-07-14 12:53:49,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316787872] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 12:53:49,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 12:53:49,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 12:53:49,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284275479] [2021-07-14 12:53:49,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 12:53:49,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 12:53:49,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 12:53:49,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 12:53:49,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:49,152 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 12:53:49,153 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 12:53:49,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:49,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:49,164 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 12:53:49,164 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:53:49,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:53:49,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1085923484, now seen corresponding path program 1 times [2021-07-14 12:53:49,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:53:49,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40062545] [2021-07-14 12:53:49,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:53:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:49,192 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 12:53:49,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:53:49,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40062545] [2021-07-14 12:53:49,193 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40062545] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:49,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281579874] [2021-07-14 12:53:49,193 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 12:53:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:49,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-14 12:53:49,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 12:53:49,355 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 12:53:49,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281579874] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:49,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 12:53:49,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-07-14 12:53:49,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710129617] [2021-07-14 12:53:49,358 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 12:53:49,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 12:53:49,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 12:53:49,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-14 12:53:49,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:49,361 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 12:53:49,361 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 12:53:49,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:49,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:49,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:49,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:49,615 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:49,616 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:53:49,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:53:49,617 INFO L82 PathProgramCache]: Analyzing trace with hash 719182065, now seen corresponding path program 1 times [2021-07-14 12:53:49,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:53:49,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224877074] [2021-07-14 12:53:49,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:53:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:49,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 12:53:49,660 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:53:49,660 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224877074] [2021-07-14 12:53:49,660 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224877074] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:49,660 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016477127] [2021-07-14 12:53:49,660 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) [2021-07-14 12:53:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:49,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 12:53:49,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:49,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 12:53:49,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016477127] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:49,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 12:53:49,743 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-07-14 12:53:49,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996830710] [2021-07-14 12:53:49,744 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 12:53:49,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 12:53:49,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 12:53:49,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 12:53:49,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:49,746 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 12:53:49,746 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 12:53:49,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:49,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:49,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:49,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:49,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:49,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:49,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:49,993 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:53:49,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:53:49,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1620028835, now seen corresponding path program 2 times [2021-07-14 12:53:49,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:53:49,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310532605] [2021-07-14 12:53:49,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:53:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:50,034 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 12:53:50,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:53:50,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310532605] [2021-07-14 12:53:50,034 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310532605] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:50,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430389770] [2021-07-14 12:53:50,035 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) [2021-07-14 12:53:50,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 12:53:50,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 12:53:50,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 12:53:50,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:50,142 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 12:53:50,143 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 12:53:50,146 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 12:53:50,147 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 12:53:50,148 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 12:53:50,148 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:3 [2021-07-14 12:53:50,154 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 12:53:50,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430389770] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:50,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 12:53:50,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2021-07-14 12:53:50,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232133481] [2021-07-14 12:53:50,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 12:53:50,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 12:53:50,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 12:53:50,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-14 12:53:50,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:50,156 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 12:53:50,156 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 12:53:50,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:50,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:50,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:50,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:50,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:50,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:50,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:50,395 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:53:50,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:53:50,395 INFO L82 PathProgramCache]: Analyzing trace with hash -518492367, now seen corresponding path program 3 times [2021-07-14 12:53:50,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:53:50,395 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527771506] [2021-07-14 12:53:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:53:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:50,468 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 12:53:50,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:53:50,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527771506] [2021-07-14 12:53:50,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527771506] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:50,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022208130] [2021-07-14 12:53:50,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:50,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 12:53:50,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 12:53:50,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-14 12:53:50,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 12:53:50,573 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 12:53:50,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022208130] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:50,573 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 12:53:50,573 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-07-14 12:53:50,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326450464] [2021-07-14 12:53:50,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 12:53:50,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 12:53:50,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 12:53:50,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-07-14 12:53:50,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:50,575 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 12:53:50,575 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 12:53:50,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:50,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:50,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:50,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:50,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:50,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:50,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:50,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:50,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:50,853 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:53:50,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:53:50,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1129677508, now seen corresponding path program 4 times [2021-07-14 12:53:50,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:53:50,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414032793] [2021-07-14 12:53:50,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:53:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:50,973 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 12:53:50,974 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:53:50,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414032793] [2021-07-14 12:53:50,974 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414032793] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:50,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898858533] [2021-07-14 12:53:50,974 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:51,009 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 12:53:51,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 12:53:51,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 12:53:51,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 12:53:51,045 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 12:53:51,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898858533] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:51,045 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 12:53:51,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-07-14 12:53:51,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987988568] [2021-07-14 12:53:51,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 12:53:51,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 12:53:51,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 12:53:51,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-07-14 12:53:51,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:51,046 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 12:53:51,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 12:53:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:51,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:51,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:51,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:51,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:51,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:51,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:51,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:51,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:51,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:51,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:51,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:51,311 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:53:51,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:53:51,311 INFO L82 PathProgramCache]: Analyzing trace with hash 322539282, now seen corresponding path program 5 times [2021-07-14 12:53:51,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:53:51,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338002835] [2021-07-14 12:53:51,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:53:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:51,397 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 12:53:51,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:53:51,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338002835] [2021-07-14 12:53:51,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338002835] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:51,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747292081] [2021-07-14 12:53:51,398 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:51,445 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-14 12:53:51,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 12:53:51,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 12:53:51,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 12:53:51,506 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 12:53:51,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747292081] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:51,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 12:53:51,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2021-07-14 12:53:51,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468101017] [2021-07-14 12:53:51,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-14 12:53:51,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 12:53:51,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-14 12:53:51,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-07-14 12:53:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:51,508 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 12:53:51,508 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 14 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 12:53:51,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:51,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:51,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:51,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:51,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:51,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:51,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:51,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:51,836 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:51,836 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:53:51,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:53:51,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1431854851, now seen corresponding path program 6 times [2021-07-14 12:53:51,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:53:51,837 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426291465] [2021-07-14 12:53:51,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:53:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:51,886 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 12:53:51,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:53:51,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426291465] [2021-07-14 12:53:51,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426291465] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:51,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953578814] [2021-07-14 12:53:51,887 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:51,929 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-07-14 12:53:51,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 12:53:51,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 25 conjunts are in the unsatisfiable core [2021-07-14 12:53:51,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 12:53:52,117 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 12:53:52,117 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 12:53:52,360 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 12:53:52,362 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 12:53:52,362 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 12:53:52,362 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:3 [2021-07-14 12:53:52,368 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 12:53:52,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953578814] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:52,368 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 12:53:52,368 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-07-14 12:53:52,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546721598] [2021-07-14 12:53:52,368 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 12:53:52,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 12:53:52,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 12:53:52,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-07-14 12:53:52,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:52,369 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 12:53:52,369 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 17 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 12:53:52,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:52,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:52,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:52,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:52,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:52,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:52,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:52,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:52,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:52,673 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-07-14 12:53:52,673 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:53:52,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:53:52,674 INFO L82 PathProgramCache]: Analyzing trace with hash 977354257, now seen corresponding path program 7 times [2021-07-14 12:53:52,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:53:52,674 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218769270] [2021-07-14 12:53:52,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:53:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:52,749 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 12:53:52,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:53:52,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218769270] [2021-07-14 12:53:52,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218769270] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:52,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782792698] [2021-07-14 12:53:52,749 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:52,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 12 conjunts are in the unsatisfiable core [2021-07-14 12:53:52,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 12:53:52,833 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 12:53:52,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782792698] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:52,833 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 12:53:52,833 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-07-14 12:53:52,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094751936] [2021-07-14 12:53:52,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 12:53:52,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 12:53:52,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 12:53:52,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-07-14 12:53:52,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:52,834 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 12:53:52,834 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 12:53:52,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:52,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:52,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:52,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:52,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:52,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:52,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:52,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:52,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:52,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:52,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:52,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:52,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:52,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:52,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:52,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:52,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:52,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:53,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:53,177 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:53:53,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:53:53,177 INFO L82 PathProgramCache]: Analyzing trace with hash 256282596, now seen corresponding path program 8 times [2021-07-14 12:53:53,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:53:53,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391429481] [2021-07-14 12:53:53,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:53:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:53,226 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-07-14 12:53:53,226 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:53:53,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391429481] [2021-07-14 12:53:53,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391429481] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:53,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834380638] [2021-07-14 12:53:53,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:53,254 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 12:53:53,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 12:53:53,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 12:53:53,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 12:53:53,322 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-14 12:53:53,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834380638] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:53,322 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 12:53:53,322 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 13 [2021-07-14 12:53:53,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036291861] [2021-07-14 12:53:53,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 12:53:53,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 12:53:53,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 12:53:53,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-07-14 12:53:53,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:53,323 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 12:53:53,323 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 12:53:53,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:53,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:53,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:53,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:53,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:53,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:53,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:53,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:53,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:53,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:53,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:53,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:53,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:53,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:53,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:53,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:53,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:53,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:53,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:53,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:53,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-07-14 12:53:53,678 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:53:53,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:53:53,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1567875954, now seen corresponding path program 9 times [2021-07-14 12:53:53,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:53:53,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472791375] [2021-07-14 12:53:53,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:53:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:53,740 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 12:53:53,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:53:53,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472791375] [2021-07-14 12:53:53,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472791375] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:53,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473630880] [2021-07-14 12:53:53,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:53,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-14 12:53:53,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 12:53:53,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 31 conjunts are in the unsatisfiable core [2021-07-14 12:53:53,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 12:53:54,059 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 12:53:54,059 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 12:53:55,196 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 12:53:55,198 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 12:53:55,198 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 12:53:55,217 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-07-14 12:53:55,225 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 12:53:55,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473630880] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:55,225 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 12:53:55,225 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14] total 22 [2021-07-14 12:53:55,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667355048] [2021-07-14 12:53:55,225 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-14 12:53:55,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 12:53:55,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-14 12:53:55,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-07-14 12:53:55,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:55,226 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 12:53:55,226 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 1.608695652173913) internal successors, (37), 22 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 12:53:55,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:55,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:55,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:55,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:55,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:55,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:55,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:55,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:55,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:55,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:55,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:55,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:55,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 12:53:55,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-07-14 12:53:55,588 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:53:55,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:53:55,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1293396402, now seen corresponding path program 10 times [2021-07-14 12:53:55,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:53:55,589 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889224234] [2021-07-14 12:53:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:53:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:55,702 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 12:53:55,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:53:55,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889224234] [2021-07-14 12:53:55,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889224234] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:55,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181649551] [2021-07-14 12:53:55,702 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:55,731 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 12:53:55,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 12:53:55,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-14 12:53:55,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 12:53:55,814 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 12:53:55,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181649551] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:55,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 12:53:55,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-07-14 12:53:55,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905675158] [2021-07-14 12:53:55,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 12:53:55,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 12:53:55,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 12:53:55,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-07-14 12:53:55,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:55,817 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 12:53:55,817 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 12:53:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 12:53:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:53:56,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:53:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:53:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:53:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:53:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:53:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:53:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 12:53:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 12:53:56,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable200 [2021-07-14 12:53:56,253 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:53:56,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:53:56,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1463654499, now seen corresponding path program 11 times [2021-07-14 12:53:56,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:53:56,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005326869] [2021-07-14 12:53:56,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:53:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:53:56,344 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 12:53:56,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:53:56,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005326869] [2021-07-14 12:53:56,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005326869] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:53:56,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955713293] [2021-07-14 12:53:56,345 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:53:56,405 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 12:53:56,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 12:53:56,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-14 12:53:56,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 12:53:56,935 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-07-14 12:53:56,936 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 12:53:56,936 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 12:53:57,903 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 236 [2021-07-14 12:53:58,013 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 236 [2021-07-14 12:53:58,149 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 324 DAG size of output: 252 [2021-07-14 12:53:58,411 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 258 [2021-07-14 12:53:58,520 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 206 [2021-07-14 12:53:59,997 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 287 [2021-07-14 12:54:00,857 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 480 DAG size of output: 370 [2021-07-14 12:54:01,258 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 395 [2021-07-14 12:54:01,818 WARN L205 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 600 DAG size of output: 442 [2021-07-14 12:54:01,955 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 234 [2021-07-14 12:54:03,896 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 270 [2021-07-14 12:54:04,186 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 533 DAG size of output: 379 [2021-07-14 12:54:04,551 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 419 [2021-07-14 12:54:05,013 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 667 DAG size of output: 486 [2021-07-14 12:54:06,089 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 1125 DAG size of output: 757 [2021-07-14 12:54:07,343 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1132 DAG size of output: 747 [2021-07-14 12:54:08,581 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1132 DAG size of output: 747 [2021-07-14 12:54:09,960 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1143 DAG size of output: 758 [2021-07-14 12:54:11,506 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 756 DAG size of output: 858 [2021-07-14 12:54:11,999 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 433 DAG size of output: 459 [2021-07-14 12:54:12,184 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 212 [2021-07-14 12:54:12,721 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 183 [2021-07-14 12:54:12,854 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 205 [2021-07-14 12:54:13,405 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 239 [2021-07-14 12:54:13,567 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 271 [2021-07-14 12:54:13,810 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 358 [2021-07-14 12:54:14,593 WARN L205 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 686 [2021-07-14 12:54:15,153 WARN L205 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 454 DAG size of output: 491 [2021-07-14 12:54:15,597 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 302 [2021-07-14 12:54:15,924 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 231 [2021-07-14 12:54:16,116 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 459 DAG size of output: 334 [2021-07-14 12:54:16,451 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 378 [2021-07-14 12:54:16,854 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 236 [2021-07-14 12:54:17,007 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 300 [2021-07-14 12:54:17,310 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 704 DAG size of output: 431 [2021-07-14 12:54:17,675 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 711 DAG size of output: 437 [2021-07-14 12:54:18,307 WARN L205 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 1016 DAG size of output: 596 [2021-07-14 12:54:18,962 WARN L205 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 1016 DAG size of output: 596 [2021-07-14 12:54:19,701 WARN L205 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 1022 DAG size of output: 554 [2021-07-14 12:54:20,010 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 355 DAG size of output: 433 [2021-07-14 12:54:20,513 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 209 [2021-07-14 12:54:20,854 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 386 DAG size of output: 239 [2021-07-14 12:54:21,252 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 447 [2021-07-14 12:54:21,460 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 279 [2021-07-14 12:54:21,706 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 303 [2021-07-14 12:54:21,981 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 368 [2021-07-14 12:54:22,392 WARN L205 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 697 DAG size of output: 436 [2021-07-14 12:54:22,802 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 697 DAG size of output: 436 [2021-07-14 12:54:23,241 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 700 DAG size of output: 439 [2021-07-14 12:54:23,498 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 335 [2021-07-14 12:54:24,106 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 12:54:24,108 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 12:54:24,108 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 12:54:24,108 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:3 [2021-07-14 12:54:24,113 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 12:54:24,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955713293] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:54:24,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 12:54:24,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-07-14 12:54:24,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258547186] [2021-07-14 12:54:24,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-14 12:54:24,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 12:54:24,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-14 12:54:24,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-14 12:54:24,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:54:24,115 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 12:54:24,115 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 27 states have internal predecessors, (43), 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 12:54:24,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:54:24,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:54:24,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:54:24,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:54:24,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:54:24,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:54:24,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:54:24,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:54:24,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:54:24,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:54:24,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 12:54:24,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 12:54:24,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:54:24,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:54:24,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:54:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:54:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:54:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:54:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:54:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:54:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:54:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:54:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:54:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 12:54:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 12:54:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 12:54:24,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable201 [2021-07-14 12:54:24,529 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:54:24,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:54:24,530 INFO L82 PathProgramCache]: Analyzing trace with hash 2061052451, now seen corresponding path program 12 times [2021-07-14 12:54:24,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:54:24,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373647533] [2021-07-14 12:54:24,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:54:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:54:24,698 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 55 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 12:54:24,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:54:24,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373647533] [2021-07-14 12:54:24,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373647533] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:54:24,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187421192] [2021-07-14 12:54:24,698 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:54:24,755 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-14 12:54:24,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 12:54:24,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-14 12:54:24,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 12:54:24,828 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 66 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 12:54:24,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187421192] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:54:24,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 12:54:24,828 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-07-14 12:54:24,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011337706] [2021-07-14 12:54:24,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-14 12:54:24,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 12:54:24,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-14 12:54:24,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-07-14 12:54:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:54:24,830 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 12:54:24,830 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 12:54:24,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:54:24,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:54:24,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:54:24,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:54:24,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:54:24,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:54:24,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:54:24,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:54:24,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:54:24,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:54:24,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 12:54:24,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 12:54:24,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 12:54:24,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 12:54:25,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 12:54:25,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:54:25,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 12:54:25,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 12:54:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:54:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 12:54:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:54:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:54:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 12:54:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 12:54:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 12:54:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 12:54:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 12:54:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 12:54:25,284 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1342,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:54:25,285 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 12:54:25,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 12:54:25,285 INFO L82 PathProgramCache]: Analyzing trace with hash -508811758, now seen corresponding path program 13 times [2021-07-14 12:54:25,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 12:54:25,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634946296] [2021-07-14 12:54:25,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 12:54:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:54:25,386 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 12:54:25,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 12:54:25,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634946296] [2021-07-14 12:54:25,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634946296] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 12:54:25,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344024714] [2021-07-14 12:54:25,386 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 12:54:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 12:54:25,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 43 conjunts are in the unsatisfiable core [2021-07-14 12:54:25,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 12:54:26,145 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-07-14 12:54:26,146 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 12:54:26,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 23 new quantified variables, introduced 66 case distinctions, treesize of input 55 treesize of output 568 [2021-07-14 12:54:27,001 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 276 [2021-07-14 12:54:27,142 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 280 [2021-07-14 12:54:27,901 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 269 [2021-07-14 12:54:28,032 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 273 [2021-07-14 12:54:28,348 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 457 DAG size of output: 411 [2021-07-14 12:54:28,730 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 483 DAG size of output: 438 [2021-07-14 12:54:29,450 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 250 [2021-07-14 12:54:29,586 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 252 [2021-07-14 12:54:30,323 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 240 [2021-07-14 12:54:30,433 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 242 [2021-07-14 12:54:30,709 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 420 DAG size of output: 374 [2021-07-14 12:54:31,033 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 447 DAG size of output: 402 [2021-07-14 12:54:31,879 WARN L205 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 770 DAG size of output: 685 [2021-07-14 12:54:32,823 WARN L205 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 812 DAG size of output: 726 [2021-07-14 12:54:33,934 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 833 DAG size of output: 734 [2021-07-14 12:54:35,214 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 841 DAG size of output: 738 [2021-07-14 12:54:36,490 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 841 DAG size of output: 738 [2021-07-14 12:54:38,012 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 861 DAG size of output: 758 [2021-07-14 12:54:39,907 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 760 DAG size of output: 812 [2021-07-14 12:54:40,780 WARN L205 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 464 DAG size of output: 563 [2021-07-14 12:54:41,381 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 458 DAG size of output: 646 [2021-07-14 12:54:42,202 WARN L205 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 455 DAG size of output: 545 [2021-07-14 12:54:42,859 WARN L205 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 536 [2021-07-14 12:54:43,204 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 313 [2021-07-14 12:54:43,315 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 254 [2021-07-14 12:54:44,064 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 303 [2021-07-14 12:54:44,871 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 314 [2021-07-14 12:54:45,280 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 500 [2021-07-14 12:54:45,798 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 754 DAG size of output: 569 [2021-07-14 12:54:46,009 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 252 [2021-07-14 12:54:46,732 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 212 [2021-07-14 12:54:46,990 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 273 [2021-07-14 12:54:47,235 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 288 [2021-07-14 12:54:47,996 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 195 [2021-07-14 12:54:48,312 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 259 [2021-07-14 12:54:48,846 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 597 DAG size of output: 416 [2021-07-14 12:54:49,462 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 186 [2021-07-14 12:54:49,701 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 247 [2021-07-14 12:54:49,891 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 262 [2021-07-14 12:54:50,033 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 250 [2021-07-14 12:54:50,672 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 191 [2021-07-14 12:54:50,836 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 252 [2021-07-14 12:54:51,038 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 253 [2021-07-14 12:54:51,294 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 268 [2021-07-14 12:54:51,823 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 397 [2021-07-14 12:54:52,874 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 975 DAG size of output: 585 [2021-07-14 12:54:54,653 WARN L205 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 1575 DAG size of output: 971 [2021-07-14 12:54:55,608 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 521 DAG size of output: 336 [2021-07-14 12:54:55,985 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 355 [2021-07-14 12:54:56,249 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 339 [2021-07-14 12:54:57,314 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 308 [2021-07-14 12:54:57,457 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 322 [2021-07-14 12:54:58,033 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 597 DAG size of output: 379 [2021-07-14 12:54:58,334 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 627 DAG size of output: 401 [2021-07-14 12:54:58,689 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 639 DAG size of output: 412 [2021-07-14 12:54:59,531 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 290 [2021-07-14 12:54:59,705 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 410 DAG size of output: 324 [2021-07-14 12:54:59,935 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 421 DAG size of output: 334 [2021-07-14 12:55:00,591 WARN L205 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 866 DAG size of output: 570 [2021-07-14 12:55:01,931 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 362 DAG size of output: 282 [2021-07-14 12:55:02,188 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 522 DAG size of output: 386 [2021-07-14 12:55:02,603 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 584 DAG size of output: 444 [2021-07-14 12:55:03,677 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 1125 DAG size of output: 748 [2021-07-14 12:55:05,157 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1273 DAG size of output: 863 [2021-07-14 12:55:05,447 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 273 [2021-07-14 12:55:06,373 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 281 [2021-07-14 12:55:06,557 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 466 DAG size of output: 313 [2021-07-14 12:55:07,102 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 271 [2021-07-14 12:55:07,227 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 281 [2021-07-14 12:55:07,566 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 609 DAG size of output: 428 [2021-07-14 12:55:08,687 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 324 [2021-07-14 12:55:08,926 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 374 [2021-07-14 12:55:09,514 WARN L205 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 756 DAG size of output: 529 [2021-07-14 12:55:11,753 WARN L205 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 1662 DAG size of output: 1121 [2021-07-14 12:55:12,049 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 336 [2021-07-14 12:55:12,268 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 278 [2021-07-14 12:55:13,008 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2021-07-14 12:55:13,161 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 220 [2021-07-14 12:55:13,288 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 232 [2021-07-14 12:55:13,919 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 191 [2021-07-14 12:55:14,054 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 215 [2021-07-14 12:55:14,222 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 236 [2021-07-14 12:55:14,609 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 345 [2021-07-14 12:55:14,751 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 242 [2021-07-14 12:55:16,021 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 207 [2021-07-14 12:55:16,276 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 303 [2021-07-14 12:55:16,595 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 392 DAG size of output: 323 [2021-07-14 12:55:17,197 WARN L205 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 666 DAG size of output: 465 [2021-07-14 12:55:17,328 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 307 [2021-07-14 12:55:18,022 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2021-07-14 12:55:18,140 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2021-07-14 12:55:18,856 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 342 DAG size of output: 285 [2021-07-14 12:55:19,843 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 255 [2021-07-14 12:55:20,037 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 279 [2021-07-14 12:55:20,520 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 527 DAG size of output: 424 [2021-07-14 12:55:21,181 WARN L205 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 642 DAG size of output: 511 [2021-07-14 12:55:22,642 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1161 DAG size of output: 818 [2021-07-14 12:55:26,651 WARN L205 SmtUtils]: Spent 4.00 s on a formula simplification. DAG size of input: 2529 DAG size of output: 1673 [2021-07-14 12:55:31,441 WARN L205 SmtUtils]: Spent 4.78 s on a formula simplification. DAG size of input: 2885 DAG size of output: 1923 [2021-07-14 12:55:38,761 WARN L205 SmtUtils]: Spent 7.31 s on a formula simplification. DAG size of input: 4260 DAG size of output: 2683 [2021-07-14 12:55:47,231 WARN L205 SmtUtils]: Spent 8.45 s on a formula simplification. DAG size of input: 4417 DAG size of output: 2844 [2021-07-14 12:55:56,931 WARN L205 SmtUtils]: Spent 9.68 s on a formula simplification. DAG size of input: 4663 DAG size of output: 2936 [2021-07-14 12:55:57,589 WARN L205 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 626 [2021-07-14 12:55:58,436 WARN L205 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 525 [2021-07-14 12:55:59,125 WARN L205 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 490 [2021-07-14 12:55:59,726 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 304 [2021-07-14 12:56:00,622 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 472 DAG size of output: 464 [2021-07-14 12:56:00,837 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 479 DAG size of output: 470 [2021-07-14 12:56:01,194 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 813 DAG size of output: 655 [2021-07-14 12:56:01,449 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 221 [2021-07-14 12:56:02,563 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 181 [2021-07-14 12:56:03,121 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 179 [2021-07-14 12:56:03,369 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 241 [2021-07-14 12:56:03,668 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 244 [2021-07-14 12:56:04,107 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 287 [2021-07-14 12:56:05,087 WARN L205 SmtUtils]: Spent 976.00 ms on a formula simplification. DAG size of input: 1238 DAG size of output: 681 [2021-07-14 12:56:06,121 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 428 DAG size of output: 584 [2021-07-14 12:56:07,034 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 499 [2021-07-14 12:56:07,218 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 324 [2021-07-14 12:56:07,384 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 322 [2021-07-14 12:56:08,198 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 201 [2021-07-14 12:56:08,980 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 286 [2021-07-14 12:56:09,898 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 214 [2021-07-14 12:56:10,071 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 256 [2021-07-14 12:56:10,849 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 401 DAG size of output: 347 [2021-07-14 12:56:11,498 WARN L205 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 594 DAG size of output: 524 [2021-07-14 12:56:12,857 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 266 [2021-07-14 12:56:14,691 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 188 [2021-07-14 12:56:14,824 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 191 [2021-07-14 12:56:15,021 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 377 DAG size of output: 262 [2021-07-14 12:56:15,357 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 470 DAG size of output: 355 [2021-07-14 12:56:15,808 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 397 [2021-07-14 12:56:16,550 WARN L205 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 695 DAG size of output: 559 [2021-07-14 12:56:18,048 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 977 DAG size of output: 792 [2021-07-14 12:56:19,612 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 1064 DAG size of output: 842 [2021-07-14 12:56:21,532 WARN L205 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 1243 DAG size of output: 920 [2021-07-14 12:56:23,860 WARN L205 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 1442 DAG size of output: 1089 [2021-07-14 12:56:24,458 WARN L205 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 457 [2021-07-14 12:56:24,756 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 383 [2021-07-14 12:56:25,127 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 429 [2021-07-14 12:56:25,892 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 239 [2021-07-14 12:56:26,028 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 249 [2021-07-14 12:56:26,614 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 207 [2021-07-14 12:56:26,909 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 344 [2021-07-14 12:56:27,306 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 395 [2021-07-14 12:56:28,557 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 202 [2021-07-14 12:56:28,791 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 332 [2021-07-14 12:56:29,138 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 381 [2021-07-14 12:56:29,514 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 401 [2021-07-14 12:56:30,279 WARN L205 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 692 DAG size of output: 593 [2021-07-14 12:56:30,693 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 444 [2021-07-14 12:56:31,486 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 210 [2021-07-14 12:56:31,633 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 233 [2021-07-14 12:56:31,805 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2021-07-14 12:56:32,484 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 345 [2021-07-14 12:56:32,915 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 429 DAG size of output: 398 [2021-07-14 12:56:33,681 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 217 [2021-07-14 12:56:34,331 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 245 [2021-07-14 12:56:34,623 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 344 [2021-07-14 12:56:35,046 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 397 [2021-07-14 12:56:35,857 WARN L205 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 676 DAG size of output: 601 [2021-07-14 12:56:37,277 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1077 DAG size of output: 809 [2021-07-14 12:56:38,970 WARN L205 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 1165 DAG size of output: 847 [2021-07-14 12:56:43,528 WARN L205 SmtUtils]: Spent 4.55 s on a formula simplification. DAG size of input: 2290 DAG size of output: 1526 [2021-07-14 12:56:49,704 WARN L205 SmtUtils]: Spent 6.16 s on a formula simplification. DAG size of input: 3340 DAG size of output: 2063 [2021-07-14 12:56:56,927 WARN L205 SmtUtils]: Spent 7.21 s on a formula simplification. DAG size of input: 3491 DAG size of output: 2236 [2021-07-14 12:57:05,332 WARN L205 SmtUtils]: Spent 8.39 s on a formula simplification. DAG size of input: 3713 DAG size of output: 2317 [2021-07-14 12:57:24,308 WARN L205 SmtUtils]: Spent 18.96 s on a formula simplification. DAG size of input: 7370 DAG size of output: 4532 [2021-07-14 12:57:47,147 WARN L205 SmtUtils]: Spent 22.81 s on a formula simplification. DAG size of input: 7654 DAG size of output: 4652 [2021-07-14 12:58:10,029 WARN L205 SmtUtils]: Spent 22.85 s on a formula simplification. DAG size of input: 7654 DAG size of output: 4652 [2021-07-14 12:58:35,967 WARN L205 SmtUtils]: Spent 25.92 s on a formula simplification. DAG size of input: 7669 DAG size of output: 4667 [2021-07-14 12:58:36,786 WARN L205 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 4661 [2021-07-14 12:59:05,166 WARN L205 SmtUtils]: Spent 28.36 s on a formula simplification. DAG size of input: 4663 DAG size of output: 6220 [2021-07-14 12:59:15,433 WARN L205 SmtUtils]: Spent 10.23 s on a formula simplification. DAG size of input: 4573 DAG size of output: 4534 [2021-07-14 12:59:38,815 WARN L205 SmtUtils]: Spent 23.35 s on a formula simplification. DAG size of input: 4531 DAG size of output: 4865 [2021-07-14 12:59:54,063 WARN L205 SmtUtils]: Spent 15.22 s on a formula simplification. DAG size of input: 3153 DAG size of output: 3275 [2021-07-14 13:00:04,417 WARN L205 SmtUtils]: Spent 10.33 s on a formula simplification. DAG size of input: 3100 DAG size of output: 3091 [2021-07-14 13:00:22,710 WARN L205 SmtUtils]: Spent 18.27 s on a formula simplification. DAG size of input: 2740 DAG size of output: 4110 [2021-07-14 13:00:23,686 WARN L205 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 2692 DAG size of output: 2692 [2021-07-14 13:00:23,970 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 256 [2021-07-14 13:00:24,434 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 1341 [2021-07-14 13:00:24,732 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 1234 [2021-07-14 13:00:24,870 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2021-07-14 13:00:25,023 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 668 DAG size of output: 668 [2021-07-14 13:00:25,151 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 635 DAG size of output: 635 [2021-07-14 13:00:26,586 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 685 DAG size of output: 685 [2021-07-14 13:00:27,149 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 596 DAG size of output: 558 [2021-07-14 13:00:28,232 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 189 [2021-07-14 13:00:28,446 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 484 DAG size of output: 318 [2021-07-14 13:00:28,808 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 687 DAG size of output: 429 [2021-07-14 13:00:29,272 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 846 DAG size of output: 502 [2021-07-14 13:00:29,659 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 867 DAG size of output: 450 [2021-07-14 13:00:30,127 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 1736 DAG size of output: 1736 [2021-07-14 13:00:30,351 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 1598 [2021-07-14 13:00:30,670 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 1498 [2021-07-14 13:00:30,950 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 1220 DAG size of output: 1220 [2021-07-14 13:00:31,420 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 1076 DAG size of output: 852 [2021-07-14 13:00:31,950 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 705 DAG size of output: 705 [2021-07-14 13:00:32,893 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 197 [2021-07-14 13:00:33,863 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 487 DAG size of output: 313 [2021-07-14 13:00:34,153 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 614 DAG size of output: 375 [2021-07-14 13:00:36,007 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 420 DAG size of output: 357 [2021-07-14 13:00:37,414 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 227 [2021-07-14 13:00:38,539 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 556 DAG size of output: 391 [2021-07-14 13:00:39,085 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 871 DAG size of output: 621 [2021-07-14 13:00:40,077 WARN L205 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 1446 DAG size of output: 922 [2021-07-14 13:00:41,276 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 1728 DAG size of output: 970 [2021-07-14 13:00:42,558 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1758 DAG size of output: 839 [2021-07-14 13:00:42,839 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 283 [2021-07-14 13:00:44,600 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1922 DAG size of output: 903 [2021-07-14 13:00:46,595 WARN L205 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 2598 DAG size of output: 1165 [2021-07-14 13:00:52,833 WARN L205 SmtUtils]: Spent 6.22 s on a formula simplification. DAG size of input: 4518 DAG size of output: 2219 [2021-07-14 13:00:53,608 WARN L205 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 486 DAG size of output: 525 [2021-07-14 13:00:53,978 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 477 DAG size of output: 477 [2021-07-14 13:00:54,946 WARN L205 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 474 DAG size of output: 729 [2021-07-14 13:00:55,219 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 468 DAG size of output: 338 [2021-07-14 13:00:55,937 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 496 DAG size of output: 273 [2021-07-14 13:00:56,210 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 279 [2021-07-14 13:00:56,556 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 325 [2021-07-14 13:01:03,762 WARN L205 SmtUtils]: Spent 7.20 s on a formula simplification. DAG size of input: 4961 DAG size of output: 2195 [2021-07-14 13:01:12,472 WARN L205 SmtUtils]: Spent 8.69 s on a formula simplification. DAG size of input: 5328 DAG size of output: 2407 [2021-07-14 13:01:23,570 WARN L205 SmtUtils]: Spent 11.07 s on a formula simplification. DAG size of input: 6680 DAG size of output: 2674 [2021-07-14 13:01:36,054 WARN L205 SmtUtils]: Spent 12.46 s on a formula simplification. DAG size of input: 6693 DAG size of output: 2686 [2021-07-14 13:01:50,981 WARN L205 SmtUtils]: Spent 14.90 s on a formula simplification. DAG size of input: 8215 DAG size of output: 3079 [2021-07-14 13:02:05,822 WARN L205 SmtUtils]: Spent 14.81 s on a formula simplification. DAG size of input: 8215 DAG size of output: 3079 [2021-07-14 13:02:23,307 WARN L205 SmtUtils]: Spent 17.44 s on a formula simplification. DAG size of input: 8225 DAG size of output: 3069 [2021-07-14 13:02:37,087 WARN L205 SmtUtils]: Spent 13.76 s on a formula simplification. DAG size of input: 3054 DAG size of output: 3247 [2021-07-14 13:02:43,298 WARN L205 SmtUtils]: Spent 6.19 s on a formula simplification. DAG size of input: 2778 DAG size of output: 2144 [2021-07-14 13:02:48,297 WARN L205 SmtUtils]: Spent 4.98 s on a formula simplification. DAG size of input: 1921 DAG size of output: 2107 [2021-07-14 13:02:52,769 WARN L205 SmtUtils]: Spent 4.46 s on a formula simplification. DAG size of input: 1844 DAG size of output: 1869 [2021-07-14 13:02:52,990 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 1774 [2021-07-14 13:02:53,177 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 1623 [2021-07-14 13:02:53,406 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 271 [2021-07-14 13:02:54,009 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 234 [2021-07-14 13:02:54,514 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 429 DAG size of output: 302 [2021-07-14 13:02:54,677 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 1442 [2021-07-14 13:02:55,005 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 262 [2021-07-14 13:02:55,183 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 233 [2021-07-14 13:02:56,052 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 1292 DAG size of output: 1292 [2021-07-14 13:02:56,269 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 265 [2021-07-14 13:02:56,554 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 204 [2021-07-14 13:02:56,746 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 214 [2021-07-14 13:02:57,813 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 1104 DAG size of output: 1104 [2021-07-14 13:02:58,562 WARN L205 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 602 DAG size of output: 490 [2021-07-14 13:02:58,979 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 193 [2021-07-14 13:02:59,620 WARN L205 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 509 [2021-07-14 13:03:00,226 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 338 [2021-07-14 13:03:00,540 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 500 DAG size of output: 441 [2021-07-14 13:03:00,958 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 702 DAG size of output: 535 [2021-07-14 13:03:01,068 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 624 DAG size of output: 624 [2021-07-14 13:03:01,680 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 353 [2021-07-14 13:03:02,382 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 204 [2021-07-14 13:03:02,538 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 216 [2021-07-14 13:03:03,211 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 291 [2021-07-14 13:03:03,989 WARN L205 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 1185 DAG size of output: 751 [2021-07-14 13:03:05,133 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 1369 DAG size of output: 911 [2021-07-14 13:03:06,397 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1497 DAG size of output: 994 [2021-07-14 13:03:07,881 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1806 DAG size of output: 1194 [2021-07-14 13:03:08,085 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 248 [2021-07-14 13:03:08,277 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 207 [2021-07-14 13:03:08,585 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 232 [2021-07-14 13:03:09,178 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 169 [2021-07-14 13:03:09,320 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 207 [2021-07-14 13:03:09,476 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 223 [2021-07-14 13:03:11,210 WARN L205 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 2038 DAG size of output: 1341 [2021-07-14 13:03:13,373 WARN L205 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 2187 DAG size of output: 1400 [2021-07-14 13:03:16,598 WARN L205 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 2655 DAG size of output: 1823 [2021-07-14 13:03:20,713 WARN L205 SmtUtils]: Spent 4.10 s on a formula simplification. DAG size of input: 2932 DAG size of output: 2078 [2021-07-14 13:03:25,901 WARN L205 SmtUtils]: Spent 5.17 s on a formula simplification. DAG size of input: 3415 DAG size of output: 2208 [2021-07-14 13:03:31,754 WARN L205 SmtUtils]: Spent 5.84 s on a formula simplification. DAG size of input: 3441 DAG size of output: 2213 [2021-07-14 13:03:37,628 WARN L205 SmtUtils]: Spent 5.86 s on a formula simplification. DAG size of input: 3441 DAG size of output: 2213 [2021-07-14 13:03:44,051 WARN L205 SmtUtils]: Spent 6.41 s on a formula simplification. DAG size of input: 3444 DAG size of output: 2217 [2021-07-14 13:03:44,319 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 2213 [2021-07-14 13:03:44,835 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 2213 DAG size of output: 2213 [2021-07-14 13:03:45,081 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 2208 [2021-07-14 13:03:49,977 WARN L205 SmtUtils]: Spent 4.88 s on a formula simplification. DAG size of input: 2078 DAG size of output: 1870 [2021-07-14 13:03:50,259 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 1107 DAG size of output: 1107 [2021-07-14 13:03:52,249 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 1010 DAG size of output: 875 [2021-07-14 13:03:52,790 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 409 DAG size of output: 416 [2021-07-14 13:03:52,982 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 188 [2021-07-14 13:03:53,451 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 197 [2021-07-14 13:03:54,558 WARN L205 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 599 DAG size of output: 529 [2021-07-14 13:03:54,731 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 289 [2021-07-14 13:03:55,344 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 258 [2021-07-14 13:03:56,085 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 286 [2021-07-14 13:03:56,340 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 593 DAG size of output: 383 [2021-07-14 13:03:56,519 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 947 DAG size of output: 945 [2021-07-14 13:03:56,627 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 936 [2021-07-14 13:03:57,922 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 789 DAG size of output: 735 [2021-07-14 13:03:58,509 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 547 DAG size of output: 547 [2021-07-14 13:03:59,011 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 537 DAG size of output: 464 [2021-07-14 13:03:59,706 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 242 [2021-07-14 13:03:59,860 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 403 DAG size of output: 252 [2021-07-14 13:04:00,189 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 239 [2021-07-14 13:04:00,864 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 527 DAG size of output: 315 [2021-07-14 13:04:01,001 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 196 [2021-07-14 13:04:01,433 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 582 DAG size of output: 346 [2021-07-14 13:04:01,757 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 589 DAG size of output: 350 [2021-07-14 13:04:02,340 WARN L205 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 574 [2021-07-14 13:04:02,638 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 292 [2021-07-14 13:04:02,799 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 195 [2021-07-14 13:04:03,556 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 213 [2021-07-14 13:04:03,697 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 199 [2021-07-14 13:04:05,091 WARN L205 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 1288 DAG size of output: 687 [2021-07-14 13:04:06,079 WARN L205 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 1291 DAG size of output: 686 [2021-07-14 13:04:07,061 WARN L205 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 1291 DAG size of output: 686 [2021-07-14 13:04:08,079 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 1297 DAG size of output: 692 [2021-07-14 13:04:08,415 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 491 [2021-07-14 13:04:09,041 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 451 DAG size of output: 304 [2021-07-14 13:04:09,425 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 355 [2021-07-14 13:04:09,828 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 360 [2021-07-14 13:04:10,206 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 360 [2021-07-14 13:04:10,615 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 363 [2021-07-14 13:04:10,924 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 365 [2021-07-14 13:04:11,057 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 248 [2021-07-14 13:04:11,943 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 13:04:11,945 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 13:04:11,945 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 13:04:11,946 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:3 [2021-07-14 13:04:11,951 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:04:11,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344024714] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:04:11,951 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:04:11,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 20] total 32 [2021-07-14 13:04:11,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826079736] [2021-07-14 13:04:11,951 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 13:04:11,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:04:11,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 13:04:11,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=975, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 13:04:11,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:04:11,955 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:04:11,956 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 32 states have internal predecessors, (49), 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 13:04:11,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:04:11,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:04:11,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:04:11,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 13:04:11,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 13:04:11,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 13:04:11,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 13:04:11,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 13:04:11,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 13:04:11,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 13:04:11,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:04:11,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:04:11,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 13:04:11,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 13:04:11,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:04:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:04:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:04:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:04:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 13:04:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 13:04:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 13:04:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 13:04:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 13:04:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 13:04:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 13:04:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:04:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:04:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 13:04:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 13:04:12,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 13:04:12,491 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1343 [2021-07-14 13:04:12,491 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:04:12,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:04:12,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1770898350, now seen corresponding path program 14 times [2021-07-14 13:04:12,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:04:12,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764483226] [2021-07-14 13:04:12,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:04:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:04:12,711 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 78 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:04:12,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:04:12,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764483226] [2021-07-14 13:04:12,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764483226] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:04:12,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233137620] [2021-07-14 13:04:12,711 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 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 13:04:12,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 13:04:12,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:04:12,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-14 13:04:12,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:04:12,817 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 91 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:04:12,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233137620] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:04:12,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 13:04:12,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-07-14 13:04:12,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136469779] [2021-07-14 13:04:12,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 13:04:12,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 13:04:12,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 13:04:12,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2021-07-14 13:04:12,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:04:12,819 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 13:04:12,820 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 13:04:12,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 13:04:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 13:04:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:04:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 13:04:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 13:04:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 13:04:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 13:04:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 13:04:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 13:04:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 13:04:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 13:04:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:04:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 13:04:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 13:04:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 13:04:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 13:04:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 13:04:13,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11576 [2021-07-14 13:04:13,395 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 13:04:13,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 13:04:13,395 INFO L82 PathProgramCache]: Analyzing trace with hash 959797699, now seen corresponding path program 15 times [2021-07-14 13:04:13,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 13:04:13,395 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084726537] [2021-07-14 13:04:13,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 13:04:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 13:04:13,546 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 13:04:13,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 13:04:13,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084726537] [2021-07-14 13:04:13,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084726537] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 13:04:13,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554990867] [2021-07-14 13:04:13,547 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 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 13:04:13,614 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-07-14 13:04:13,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 13:04:13,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 49 conjunts are in the unsatisfiable core [2021-07-14 13:04:13,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 13:04:14,698 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2021-07-14 13:04:14,698 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 13:04:14,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 27 new quantified variables, introduced 91 case distinctions, treesize of input 63 treesize of output 774 [2021-07-14 13:04:15,844 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 429 DAG size of output: 301 [2021-07-14 13:04:16,045 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 334 [2021-07-14 13:04:16,322 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 363 [2021-07-14 13:04:16,892 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 364 DAG size of output: 332 [2021-07-14 13:04:17,485 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 336 [2021-07-14 13:04:17,704 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 673 DAG size of output: 609 [2021-07-14 13:04:18,028 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 701 DAG size of output: 636 [2021-07-14 13:04:18,702 WARN L205 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 1105 DAG size of output: 912 [2021-07-14 13:04:19,535 WARN L205 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 1137 DAG size of output: 937 [2021-07-14 13:04:20,558 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 1169 DAG size of output: 969 [2021-07-14 13:04:21,845 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1200 DAG size of output: 1000 [2021-07-14 13:04:23,351 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1232 DAG size of output: 1032 [2021-07-14 13:04:24,692 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 235 [2021-07-14 13:04:24,865 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 256 [2021-07-14 13:04:25,051 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 289 [2021-07-14 13:04:25,264 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 321 [2021-07-14 13:04:25,533 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 354 [2021-07-14 13:04:27,592 WARN L205 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 1480 DAG size of output: 1192 [2021-07-14 13:04:28,775 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 360 DAG size of output: 328 [2021-07-14 13:04:29,026 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 657 DAG size of output: 593 [2021-07-14 13:04:30,355 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 589 [2021-07-14 13:04:30,911 WARN L205 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1122 [2021-07-14 13:04:31,641 WARN L205 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 1279 DAG size of output: 1150 [2021-07-14 13:04:32,565 WARN L205 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 1310 DAG size of output: 1181 [2021-07-14 13:04:33,686 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 1340 DAG size of output: 1211 [2021-07-14 13:04:35,132 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1369 DAG size of output: 1239 [2021-07-14 13:04:36,630 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 460 DAG size of output: 316 [2021-07-14 13:04:36,835 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 348 [2021-07-14 13:04:37,110 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 523 DAG size of output: 375 [2021-07-14 13:04:37,424 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 406 [2021-07-14 13:04:37,791 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 584 DAG size of output: 436 [2021-07-14 13:04:39,891 WARN L205 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 1800 DAG size of output: 1526 [2021-07-14 13:04:42,322 WARN L205 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 1831 DAG size of output: 1557 [2021-07-14 13:04:47,109 WARN L205 SmtUtils]: Spent 4.78 s on a formula simplification. DAG size of input: 3112 DAG size of output: 2563 [2021-07-14 13:04:52,538 WARN L205 SmtUtils]: Spent 5.41 s on a formula simplification. DAG size of input: 3143 DAG size of output: 2594 [2021-07-14 13:04:58,395 WARN L205 SmtUtils]: Spent 5.84 s on a formula simplification. DAG size of input: 3171 DAG size of output: 2622 [2021-07-14 13:05:05,037 WARN L205 SmtUtils]: Spent 6.63 s on a formula simplification. DAG size of input: 3200 DAG size of output: 2649 [2021-07-14 13:05:12,468 WARN L205 SmtUtils]: Spent 7.41 s on a formula simplification. DAG size of input: 3246 DAG size of output: 2693 [2021-07-14 13:05:13,215 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 188 [2021-07-14 13:05:13,743 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 234 [2021-07-14 13:05:13,892 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 262 [2021-07-14 13:05:14,099 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 295 [2021-07-14 13:05:14,305 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 327 [2021-07-14 13:05:15,544 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 333 [2021-07-14 13:05:15,774 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 674 DAG size of output: 610 [2021-07-14 13:05:16,878 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 302 [2021-07-14 13:05:17,111 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 335 [2021-07-14 13:05:17,657 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 881 [2021-07-14 13:05:18,355 WARN L205 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 1104 DAG size of output: 911 [2021-07-14 13:05:19,214 WARN L205 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 1136 DAG size of output: 943 [2021-07-14 13:05:20,274 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 1168 DAG size of output: 975 [2021-07-14 13:05:21,584 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1199 DAG size of output: 1006 [2021-07-14 13:05:23,309 WARN L205 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 1441 DAG size of output: 1168 [2021-07-14 13:05:25,313 WARN L205 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 1474 DAG size of output: 1201 [2021-07-14 13:05:26,417 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 302 [2021-07-14 13:05:26,623 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 335 [2021-07-14 13:05:26,901 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 493 DAG size of output: 364 [2021-07-14 13:05:28,061 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 304 [2021-07-14 13:05:28,311 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 467 DAG size of output: 339 [2021-07-14 13:05:28,591 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 499 DAG size of output: 370 [2021-07-14 13:05:29,209 WARN L205 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 890 DAG size of output: 633 [2021-07-14 13:05:29,938 WARN L205 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 923 DAG size of output: 659 [2021-07-14 13:05:30,804 WARN L205 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 957 DAG size of output: 693 [2021-07-14 13:05:31,832 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 990 DAG size of output: 726 [2021-07-14 13:05:33,018 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 1024 DAG size of output: 760 [2021-07-14 13:05:35,169 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1051 DAG size of output: 779 [2021-07-14 13:05:38,795 WARN L205 SmtUtils]: Spent 3.62 s on a formula simplification. DAG size of input: 2305 DAG size of output: 1755 [2021-07-14 13:05:42,920 WARN L205 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 2338 DAG size of output: 1788 [2021-07-14 13:05:47,348 WARN L205 SmtUtils]: Spent 4.42 s on a formula simplification. DAG size of input: 2368 DAG size of output: 1818 [2021-07-14 13:05:52,337 WARN L205 SmtUtils]: Spent 4.98 s on a formula simplification. DAG size of input: 2399 DAG size of output: 1847 [2021-07-14 13:06:06,235 WARN L205 SmtUtils]: Spent 13.88 s on a formula simplification. DAG size of input: 5327 DAG size of output: 4237 [2021-07-14 13:06:21,690 WARN L205 SmtUtils]: Spent 15.43 s on a formula simplification. DAG size of input: 5355 DAG size of output: 4263 [2021-07-14 13:06:37,023 WARN L205 SmtUtils]: Spent 15.29 s on a formula simplification. DAG size of input: 5355 DAG size of output: 4263 [2021-07-14 13:06:54,678 WARN L205 SmtUtils]: Spent 17.64 s on a formula simplification. DAG size of input: 5378 DAG size of output: 4286 [2021-07-14 13:07:24,322 WARN L205 SmtUtils]: Spent 29.61 s on a formula simplification. DAG size of input: 4288 DAG size of output: 5230 [2021-07-14 13:07:58,782 WARN L205 SmtUtils]: Spent 34.43 s on a formula simplification. DAG size of input: 4282 DAG size of output: 6377 [2021-07-14 13:07:59,312 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 4274 [2021-07-14 13:08:00,717 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 362 DAG size of output: 309 [2021-07-14 13:08:00,972 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 334 [2021-07-14 13:08:01,622 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 231 [2021-07-14 13:08:01,752 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 256 [2021-07-14 13:08:02,454 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 244 [2021-07-14 13:08:02,741 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 352 [2021-07-14 13:08:03,077 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 375 [2021-07-14 13:08:03,762 WARN L205 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 657 DAG size of output: 545 [2021-07-14 13:08:04,328 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 220 [2021-07-14 13:08:04,442 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 240 [2021-07-14 13:08:05,029 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 228 [2021-07-14 13:08:05,150 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 250 [2021-07-14 13:08:05,409 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 346 [2021-07-14 13:08:06,707 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 299 [2021-07-14 13:08:07,262 WARN L205 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 618 DAG size of output: 516 [2021-07-14 13:08:07,908 WARN L205 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 643 DAG size of output: 538 [2021-07-14 13:08:09,261 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1114 DAG size of output: 848 [2021-07-14 13:08:09,885 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 248 [2021-07-14 13:08:10,621 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 340 [2021-07-14 13:08:11,698 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 275 [2021-07-14 13:08:12,179 WARN L205 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 527 DAG size of output: 481 [2021-07-14 13:08:12,757 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 550 DAG size of output: 501 [2021-07-14 13:08:13,424 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 256 [2021-07-14 13:08:13,973 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 245 [2021-07-14 13:08:14,242 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 349 [2021-07-14 13:08:14,550 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 385 DAG size of output: 370 [2021-07-14 13:08:15,684 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 287 [2021-07-14 13:08:15,890 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 307 [2021-07-14 13:08:16,508 WARN L205 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 514 [2021-07-14 13:08:17,744 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 926 DAG size of output: 806 [2021-07-14 13:08:20,605 WARN L205 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 1850 DAG size of output: 1449 [2021-07-14 13:08:23,858 WARN L205 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 1896 DAG size of output: 1472 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown