/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 14:48:09,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 14:48:09,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 14:48:09,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 14:48:09,319 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random521.epf [2021-07-10 14:48:09,341 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 14:48:09,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 14:48:09,341 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 14:48:09,342 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 14:48:09,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 14:48:09,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 14:48:09,343 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 14:48:09,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 14:48:09,343 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 14:48:09,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 14:48:09,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 14:48:09,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 14:48:09,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 14:48:09,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 14:48:09,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 14:48:09,358 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 14:48:09,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 14:48:09,359 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 14:48:09,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 14:48:09,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 14:48:09,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 14:48:09,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 14:48:09,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 14:48:09,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 14:48:09,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 14:48:09,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 14:48:09,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 14:48:09,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 14:48:09,361 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-10 14:48:09,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 14:48:09,362 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 14:48:09,362 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 14:48:09,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 14:48:09,363 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-10 14:48:09,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-10 14:48:09,363 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 14:48:09,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 14:48:09,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 14:48:09,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 14:48:09,685 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 14:48:09,686 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 14:48:09,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl [2021-07-10 14:48:09,687 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl' [2021-07-10 14:48:09,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 14:48:09,723 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 14:48:09,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 14:48:09,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 14:48:09,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 14:48:09,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:48:09" (1/1) ... [2021-07-10 14:48:09,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:48:09" (1/1) ... [2021-07-10 14:48:09,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 14:48:09,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 14:48:09,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 14:48:09,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 14:48:09,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:48:09" (1/1) ... [2021-07-10 14:48:09,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:48:09" (1/1) ... [2021-07-10 14:48:09,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:48:09" (1/1) ... [2021-07-10 14:48:09,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:48:09" (1/1) ... [2021-07-10 14:48:09,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:48:09" (1/1) ... [2021-07-10 14:48:09,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:48:09" (1/1) ... [2021-07-10 14:48:09,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:48:09" (1/1) ... [2021-07-10 14:48:09,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 14:48:09,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 14:48:09,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 14:48:09,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 14:48:09,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:48:09" (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 [2021-07-10 14:48:09,859 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 14:48:09,860 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 14:48:09,860 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 14:48:09,860 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 14:48:09,860 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 14:48:09,861 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 14:48:09,862 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 14:48:09,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 14:48:09,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 14:48:09,863 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 14:48:10,220 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 14:48:10,221 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-07-10 14:48:10,221 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-07-10 14:48:10,223 INFO L202 PluginConnector]: Adding new model unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:48:10 BoogieIcfgContainer [2021-07-10 14:48:10,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 14:48:10,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 14:48:10,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 14:48:10,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 14:48:10,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:48:09" (1/2) ... [2021-07-10 14:48:10,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d29d1c and model type unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:48:10, skipping insertion in model container [2021-07-10 14:48:10,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:48:10" (2/2) ... [2021-07-10 14:48:10,229 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.bpl [2021-07-10 14:48:10,239 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 14:48:10,239 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 14:48:10,240 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 14:48:10,240 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 14:48:10,277 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-10 14:48:10,301 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 [2021-07-10 14:48:10,363 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 14:48:10,363 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 14:48:10,363 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 14:48:10,363 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 14:48:10,363 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 14:48:10,363 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 14:48:10,364 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 14:48:10,364 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 14:48:10,438 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:48:10,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:48:10,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1870228548, now seen corresponding path program 1 times [2021-07-10 14:48:10,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:48:10,458 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132316760] [2021-07-10 14:48:10,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:48:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:48:10,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:10,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:48:10,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132316760] [2021-07-10 14:48:10,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132316760] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 14:48:10,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 14:48:10,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 14:48:10,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033019603] [2021-07-10 14:48:10,635 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-10 14:48:10,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:48:10,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-10 14:48:10,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-10 14:48:10,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:10,649 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:48:10,651 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) [2021-07-10 14:48:10,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:10,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:10,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 14:48:10,675 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:48:10,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:48:10,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1511164646, now seen corresponding path program 1 times [2021-07-10 14:48:10,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:48:10,680 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536747900] [2021-07-10 14:48:10,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:48:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:48:10,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:10,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:48:10,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536747900] [2021-07-10 14:48:10,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536747900] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:10,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975053166] [2021-07-10 14:48:10,738 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 [2021-07-10 14:48:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:48:10,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-10 14:48:10,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:48:10,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:10,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975053166] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:10,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:48:10,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-07-10 14:48:10,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549190950] [2021-07-10 14:48:10,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-10 14:48:10,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:48:10,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-10 14:48:10,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-07-10 14:48:10,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:10,888 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:48:10,888 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-07-10 14:48:10,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:10,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:10,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:10,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:11,160 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 14:48:11,160 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:48:11,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:48:11,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1029881724, now seen corresponding path program 2 times [2021-07-10 14:48:11,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:48:11,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020744374] [2021-07-10 14:48:11,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:48:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:48:11,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:11,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:48:11,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020744374] [2021-07-10 14:48:11,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020744374] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:11,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647756715] [2021-07-10 14:48:11,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 14:48:11,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 14:48:11,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 14:48:11,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-10 14:48:11,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:48:11,300 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:11,301 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647756715] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:11,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:48:11,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-10 14:48:11,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181418050] [2021-07-10 14:48:11,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-10 14:48:11,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:48:11,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-10 14:48:11,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-10 14:48:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:11,307 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:48:11,308 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 14:48:11,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:11,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:11,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:11,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:11,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:11,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:11,592 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 14:48:11,593 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:48:11,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:48:11,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1802059430, now seen corresponding path program 3 times [2021-07-10 14:48:11,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:48:11,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604658991] [2021-07-10 14:48:11,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:48:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:48:11,646 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:11,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:48:11,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604658991] [2021-07-10 14:48:11,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604658991] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:11,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271945966] [2021-07-10 14:48:11,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 14:48:11,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-10 14:48:11,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 14:48:11,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-10 14:48:11,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:48:11,776 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:11,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271945966] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:11,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:48:11,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-07-10 14:48:11,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286598182] [2021-07-10 14:48:11,777 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-10 14:48:11,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:48:11,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-10 14:48:11,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-07-10 14:48:11,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:11,778 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:48:11,779 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 14:48:11,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:11,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:11,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:11,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:11,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:11,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:11,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:11,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:48:12,046 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 14:48:12,047 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:48:12,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:48:12,047 INFO L82 PathProgramCache]: Analyzing trace with hash -602078012, now seen corresponding path program 4 times [2021-07-10 14:48:12,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:48:12,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153332178] [2021-07-10 14:48:12,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:48:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:48:12,199 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:12,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:48:12,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153332178] [2021-07-10 14:48:12,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153332178] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:12,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571050480] [2021-07-10 14:48:12,200 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 14:48:12,230 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 14:48:12,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 14:48:12,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 26 conjunts are in the unsatisfiable core [2021-07-10 14:48:12,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:48:12,606 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:48:12,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-07-10 14:48:12,664 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 14:48:12,666 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:48:12,666 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 14:48:12,666 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-07-10 14:48:12,677 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:12,677 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571050480] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:12,677 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:48:12,678 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-07-10 14:48:12,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41901939] [2021-07-10 14:48:12,678 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 14:48:12,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:48:12,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 14:48:12,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-07-10 14:48:12,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:12,681 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:48:12,681 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 14:48:12,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:12,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:12,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:12,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:48:12,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:12,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:12,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:12,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:12,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:48:12,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:48:13,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 14:48:13,047 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:48:13,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:48:13,048 INFO L82 PathProgramCache]: Analyzing trace with hash -2115894682, now seen corresponding path program 5 times [2021-07-10 14:48:13,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:48:13,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28043195] [2021-07-10 14:48:13,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:48:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:48:13,303 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 26 [2021-07-10 14:48:13,338 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:13,338 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:48:13,338 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28043195] [2021-07-10 14:48:13,338 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28043195] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:13,338 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2871373] [2021-07-10 14:48:13,339 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 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 [2021-07-10 14:48:13,372 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-10 14:48:13,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 14:48:13,373 WARN L261 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 36 conjunts are in the unsatisfiable core [2021-07-10 14:48:13,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:48:13,651 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:48:13,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 27 treesize of output 99 [2021-07-10 14:48:13,781 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 14:48:13,786 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:48:13,786 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 14:48:13,786 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:3 [2021-07-10 14:48:13,793 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:13,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2871373] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:13,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:48:13,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-07-10 14:48:13,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037416196] [2021-07-10 14:48:13,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-10 14:48:13,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:48:13,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-10 14:48:13,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-07-10 14:48:13,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:13,795 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:48:13,795 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 14:48:13,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:13,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:13,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:13,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:48:13,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:48:13,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:48:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:48:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:48:14,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 14:48:14,288 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:48:14,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:48:14,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1799571196, now seen corresponding path program 6 times [2021-07-10 14:48:14,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:48:14,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462936265] [2021-07-10 14:48:14,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:48:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:48:14,586 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:14,586 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:48:14,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462936265] [2021-07-10 14:48:14,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462936265] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:14,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872414216] [2021-07-10 14:48:14,587 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 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 [2021-07-10 14:48:14,620 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-07-10 14:48:14,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 14:48:14,622 WARN L261 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-10 14:48:14,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:48:14,918 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:48:14,919 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 [2021-07-10 14:48:15,123 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 14:48:15,125 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:48:15,125 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 14:48:15,125 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:3 [2021-07-10 14:48:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:15,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872414216] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:15,132 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:48:15,132 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-07-10 14:48:15,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684833248] [2021-07-10 14:48:15,132 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-10 14:48:15,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:48:15,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-10 14:48:15,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2021-07-10 14:48:15,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:15,133 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:48:15,133 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.380952380952381) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 14:48:15,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:15,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:15,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:15,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:48:15,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:48:15,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:48:15,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:15,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:15,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:15,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:15,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:48:15,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:48:15,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:48:15,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:48:15,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-07-10 14:48:15,642 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:48:15,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:48:15,643 INFO L82 PathProgramCache]: Analyzing trace with hash -583477722, now seen corresponding path program 7 times [2021-07-10 14:48:15,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:48:15,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583830809] [2021-07-10 14:48:15,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:48:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:48:15,791 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:15,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:48:15,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583830809] [2021-07-10 14:48:15,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583830809] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:15,792 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429041947] [2021-07-10 14:48:15,792 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 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 [2021-07-10 14:48:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:48:15,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 34 conjunts are in the unsatisfiable core [2021-07-10 14:48:15,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:48:16,787 WARN L205 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 1379 DAG size of output: 45 [2021-07-10 14:48:16,902 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:48:16,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 35 treesize of output 193 [2021-07-10 14:48:17,859 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 14:48:17,860 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:48:17,861 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 14:48:17,861 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:3 [2021-07-10 14:48:17,871 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:17,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429041947] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:17,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:48:17,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-07-10 14:48:17,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030486065] [2021-07-10 14:48:17,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-10 14:48:17,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:48:17,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-10 14:48:17,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-10 14:48:17,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:17,874 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:48:17,874 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 14:48:17,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:17,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:17,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:17,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:48:17,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:48:17,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:48:17,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:48:17,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:18,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:18,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:18,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:18,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:48:18,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:48:18,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:48:18,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:48:18,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:48:18,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2021-07-10 14:48:18,383 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:48:18,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:48:18,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1539285692, now seen corresponding path program 8 times [2021-07-10 14:48:18,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:48:18,384 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430951536] [2021-07-10 14:48:18,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:48:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:48:18,474 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:18,474 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:48:18,474 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430951536] [2021-07-10 14:48:18,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430951536] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:18,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093559917] [2021-07-10 14:48:18,475 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 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 [2021-07-10 14:48:18,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 14:48:18,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 14:48:18,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 14:48:18,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:48:18,584 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 28 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:18,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093559917] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:18,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:48:18,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-07-10 14:48:18,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134056126] [2021-07-10 14:48:18,585 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-10 14:48:18,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:48:18,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-10 14:48:18,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-07-10 14:48:18,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:18,586 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:48:18,587 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 14:48:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:48:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:48:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:48:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:48:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:48:18,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:18,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:18,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:18,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:18,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:48:18,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:48:18,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:48:18,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:48:18,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:48:18,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:48:18,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable210 [2021-07-10 14:48:18,973 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:48:18,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:48:18,973 INFO L82 PathProgramCache]: Analyzing trace with hash 2063009513, now seen corresponding path program 9 times [2021-07-10 14:48:18,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:48:18,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63484114] [2021-07-10 14:48:18,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:48:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:48:19,142 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:19,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:48:19,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63484114] [2021-07-10 14:48:19,142 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63484114] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:19,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454171089] [2021-07-10 14:48:19,142 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 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 [2021-07-10 14:48:19,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-10 14:48:19,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 14:48:19,177 WARN L261 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 41 conjunts are in the unsatisfiable core [2021-07-10 14:48:19,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:48:19,642 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-07-10 14:48:19,643 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:48:19,644 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 [2021-07-10 14:48:21,364 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 14:48:21,365 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:48:21,369 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 14:48:21,369 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-07-10 14:48:21,376 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:21,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454171089] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:21,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:48:21,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 25 [2021-07-10 14:48:21,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026484232] [2021-07-10 14:48:21,377 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-10 14:48:21,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:48:21,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-10 14:48:21,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2021-07-10 14:48:21,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:21,378 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:48:21,379 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 14:48:21,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:21,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:21,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:21,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:48:21,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:48:21,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:48:21,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:48:21,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:48:21,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:48:21,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:48:21,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:48:21,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:48:21,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:48:21,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:48:21,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:48:21,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:48:21,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:48:21,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:48:21,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:48:21,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 14:48:21,937 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable211 [2021-07-10 14:48:21,937 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:48:21,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:48:21,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1640415609, now seen corresponding path program 10 times [2021-07-10 14:48:21,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:48:21,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689715057] [2021-07-10 14:48:21,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:48:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:48:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:48:22,247 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:48:22,247 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689715057] [2021-07-10 14:48:22,247 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689715057] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:48:22,247 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135906094] [2021-07-10 14:48:22,247 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 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 [2021-07-10 14:48:22,277 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 14:48:22,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 14:48:22,278 WARN L261 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 56 conjunts are in the unsatisfiable core [2021-07-10 14:48:22,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:48:22,871 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-07-10 14:48:22,871 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:48:22,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 36 case distinctions, treesize of input 43 treesize of output 319 [2021-07-10 14:48:23,545 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 248 [2021-07-10 14:48:24,424 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 259 [2021-07-10 14:48:24,663 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 434 [2021-07-10 14:48:24,932 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 596 DAG size of output: 451 [2021-07-10 14:48:25,224 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 611 DAG size of output: 463 [2021-07-10 14:48:25,519 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 611 DAG size of output: 463 [2021-07-10 14:48:25,867 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 624 DAG size of output: 476 [2021-07-10 14:48:26,318 WARN L205 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 478 DAG size of output: 674 [2021-07-10 14:48:26,841 WARN L205 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 472 DAG size of output: 582 [2021-07-10 14:48:27,491 WARN L205 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 527 [2021-07-10 14:48:27,939 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 407 DAG size of output: 495 [2021-07-10 14:48:28,418 WARN L205 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 478 [2021-07-10 14:48:28,586 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 339 [2021-07-10 14:48:28,831 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 337 [2021-07-10 14:48:29,284 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 240 [2021-07-10 14:48:29,460 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 235 [2021-07-10 14:48:29,687 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 265 [2021-07-10 14:48:30,532 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-07-10 14:48:30,672 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 263 [2021-07-10 14:48:30,841 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 280 [2021-07-10 14:48:31,284 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 650 DAG size of output: 462 [2021-07-10 14:48:31,626 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 335 [2021-07-10 14:48:32,718 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 290 [2021-07-10 14:48:32,964 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 377 DAG size of output: 310 [2021-07-10 14:48:33,235 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 403 DAG size of output: 326 [2021-07-10 14:48:33,841 WARN L205 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 913 DAG size of output: 573 [2021-07-10 14:48:34,632 WARN L205 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 1052 DAG size of output: 661 [2021-07-10 14:48:35,046 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 428 [2021-07-10 14:48:35,287 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 389 [2021-07-10 14:48:35,484 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 369 [2021-07-10 14:48:36,334 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 232 [2021-07-10 14:48:36,543 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 349 [2021-07-10 14:48:36,690 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 288 [2021-07-10 14:48:37,239 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 295 [2021-07-10 14:48:37,905 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 427 [2021-07-10 14:48:38,338 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 755 DAG size of output: 573 [2021-07-10 14:48:38,909 WARN L205 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 840 DAG size of output: 676 [2021-07-10 14:48:39,645 WARN L205 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 1031 DAG size of output: 788 [2021-07-10 14:48:40,413 WARN L205 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 1104 DAG size of output: 747 [2021-07-10 14:48:41,273 WARN L205 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 1160 DAG size of output: 789 [2021-07-10 14:48:43,143 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 1938 DAG size of output: 1188 [2021-07-10 14:48:43,712 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 477 DAG size of output: 597 [2021-07-10 14:48:44,266 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 465 DAG size of output: 557 [2021-07-10 14:48:44,990 WARN L205 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 434 [2021-07-10 14:48:45,525 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 412 [2021-07-10 14:48:45,938 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 340 [2021-07-10 14:48:46,494 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 182 [2021-07-10 14:48:47,463 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 410 DAG size of output: 318 [2021-07-10 14:48:47,862 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 391 [2021-07-10 14:48:48,033 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 255 [2021-07-10 14:48:48,683 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 236 [2021-07-10 14:48:48,835 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 250 [2021-07-10 14:48:49,093 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 309 [2021-07-10 14:48:49,850 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 266 [2021-07-10 14:48:50,046 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 397 DAG size of output: 290 [2021-07-10 14:48:50,453 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 664 DAG size of output: 469 [2021-07-10 14:48:51,204 WARN L205 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 932 DAG size of output: 613 [2021-07-10 14:48:52,183 WARN L205 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 711 [2021-07-10 14:48:52,973 WARN L205 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 420 DAG size of output: 515 [2021-07-10 14:48:53,499 WARN L205 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 462 [2021-07-10 14:48:53,870 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 342 [2021-07-10 14:48:55,075 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 334 [2021-07-10 14:48:55,778 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 246 [2021-07-10 14:48:55,911 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 256 [2021-07-10 14:48:56,077 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 258 [2021-07-10 14:48:56,924 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 290 [2021-07-10 14:48:57,299 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 594 DAG size of output: 466 [2021-07-10 14:48:57,918 WARN L205 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 648 [2021-07-10 14:48:58,645 WARN L205 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 892 DAG size of output: 592 [2021-07-10 14:48:59,499 WARN L205 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 1013 DAG size of output: 679 [2021-07-10 14:49:00,475 WARN L205 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 721 [2021-07-10 14:49:02,549 WARN L205 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 1818 DAG size of output: 1183 [2021-07-10 14:49:05,041 WARN L205 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 1997 DAG size of output: 1227 [2021-07-10 14:49:09,715 WARN L205 SmtUtils]: Spent 4.67 s on a formula simplification. DAG size of input: 3453 DAG size of output: 2132 [2021-07-10 14:49:14,431 WARN L205 SmtUtils]: Spent 4.70 s on a formula simplification. DAG size of input: 3453 DAG size of output: 2132 [2021-07-10 14:49:19,551 WARN L205 SmtUtils]: Spent 5.11 s on a formula simplification. DAG size of input: 3462 DAG size of output: 2141 [2021-07-10 14:49:19,751 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 2138 [2021-07-10 14:49:24,532 WARN L205 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 2140 DAG size of output: 2206 [2021-07-10 14:49:26,157 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 1698 DAG size of output: 1134 [2021-07-10 14:49:27,145 WARN L205 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 948 DAG size of output: 934 [2021-07-10 14:49:28,413 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 909 DAG size of output: 1004 [2021-07-10 14:49:28,540 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 893 DAG size of output: 893 [2021-07-10 14:49:29,770 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 374 DAG size of output: 224 [2021-07-10 14:49:31,055 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 363 [2021-07-10 14:49:31,371 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 771 DAG size of output: 412 [2021-07-10 14:49:31,823 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 840 DAG size of output: 445 [2021-07-10 14:49:32,306 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 1029 DAG size of output: 501 [2021-07-10 14:49:33,117 WARN L205 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 1551 DAG size of output: 758 [2021-07-10 14:49:33,923 WARN L205 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 1551 DAG size of output: 758 [2021-07-10 14:49:35,101 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 1558 DAG size of output: 932 [2021-07-10 14:49:35,766 WARN L205 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 758 DAG size of output: 753 [2021-07-10 14:49:35,988 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 303 [2021-07-10 14:49:36,142 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 333 [2021-07-10 14:49:36,245 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 287 [2021-07-10 14:49:37,140 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 377 DAG size of output: 403 [2021-07-10 14:49:37,947 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 247 [2021-07-10 14:49:38,080 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 466 DAG size of output: 306 [2021-07-10 14:49:38,259 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 627 DAG size of output: 388 [2021-07-10 14:49:38,484 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 701 DAG size of output: 399 [2021-07-10 14:49:38,842 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 897 DAG size of output: 528 [2021-07-10 14:49:39,196 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 897 DAG size of output: 528 [2021-07-10 14:49:39,583 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 900 DAG size of output: 531 [2021-07-10 14:49:39,779 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 533 DAG size of output: 375 [2021-07-10 14:49:40,110 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 14:49:40,112 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:49:40,112 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 14:49:40,112 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:3 [2021-07-10 14:49:40,119 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:49:40,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135906094] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:49:40,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:49:40,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-07-10 14:49:40,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490558383] [2021-07-10 14:49:40,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-07-10 14:49:40,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:49:40,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-07-10 14:49:40,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=742, Unknown=0, NotChecked=0, Total=812 [2021-07-10 14:49:40,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:49:40,121 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:49:40,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 28 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 14:49:40,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:49:40,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:49:40,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:49:40,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:49:40,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:49:40,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:49:40,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:49:40,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:49:40,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:49:40,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 14:49:40,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:49:40,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:49:40,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:49:40,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:49:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:49:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:49:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:49:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:49:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:49:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:49:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 14:49:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 14:49:40,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable425 [2021-07-10 14:49:40,834 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:49:40,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:49:40,835 INFO L82 PathProgramCache]: Analyzing trace with hash -482477399, now seen corresponding path program 11 times [2021-07-10 14:49:40,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:49:40,835 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558455845] [2021-07-10 14:49:40,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:49:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:49:41,219 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:49:41,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:49:41,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558455845] [2021-07-10 14:49:41,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558455845] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:49:41,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228387393] [2021-07-10 14:49:41,220 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 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 [2021-07-10 14:49:41,273 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-10 14:49:41,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 14:49:41,274 WARN L261 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 60 conjunts are in the unsatisfiable core [2021-07-10 14:49:41,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:49:41,947 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-07-10 14:49:41,947 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:49:41,947 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 [2021-07-10 14:49:43,226 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 301 [2021-07-10 14:49:43,510 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 515 DAG size of output: 438 [2021-07-10 14:49:44,532 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 329 [2021-07-10 14:49:45,091 WARN L205 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 793 DAG size of output: 646 [2021-07-10 14:49:45,645 WARN L205 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 793 DAG size of output: 646 [2021-07-10 14:49:46,291 WARN L205 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 802 DAG size of output: 655 [2021-07-10 14:49:46,950 WARN L205 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 657 DAG size of output: 822 [2021-07-10 14:49:47,754 WARN L205 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 892 [2021-07-10 14:49:48,603 WARN L205 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 650 DAG size of output: 911 [2021-07-10 14:49:49,331 WARN L205 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 647 DAG size of output: 776 [2021-07-10 14:49:50,307 WARN L205 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 644 DAG size of output: 929 [2021-07-10 14:49:50,935 WARN L205 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 640 DAG size of output: 721 [2021-07-10 14:49:53,754 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 210 [2021-07-10 14:49:53,996 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 626 DAG size of output: 277 [2021-07-10 14:49:54,510 WARN L205 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 1118 DAG size of output: 653 [2021-07-10 14:49:55,218 WARN L205 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 1285 DAG size of output: 774 [2021-07-10 14:49:56,222 WARN L205 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 1574 DAG size of output: 969 [2021-07-10 14:49:57,529 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1858 DAG size of output: 1130 [2021-07-10 14:49:59,156 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 2062 DAG size of output: 1262 [2021-07-10 14:50:00,792 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 2062 DAG size of output: 1262 [2021-07-10 14:50:02,789 WARN L205 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 2065 DAG size of output: 1266 [2021-07-10 14:50:07,624 WARN L205 SmtUtils]: Spent 4.83 s on a formula simplification. DAG size of input: 1268 DAG size of output: 1454 [2021-07-10 14:50:08,989 WARN L205 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 760 [2021-07-10 14:50:09,305 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 467 [2021-07-10 14:50:10,195 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 388 DAG size of output: 279 [2021-07-10 14:50:10,700 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 490 DAG size of output: 269 [2021-07-10 14:50:10,868 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 365 [2021-07-10 14:50:11,013 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 257 [2021-07-10 14:50:11,944 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 419 DAG size of output: 311 [2021-07-10 14:50:12,143 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 229 [2021-07-10 14:50:12,820 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 418 [2021-07-10 14:50:13,289 WARN L205 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 879 DAG size of output: 565 [2021-07-10 14:50:13,913 WARN L205 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 508 DAG size of output: 682 [2021-07-10 14:50:14,073 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 409 [2021-07-10 14:50:14,246 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 263 [2021-07-10 14:50:14,965 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 390 [2021-07-10 14:50:15,326 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 378 DAG size of output: 257 [2021-07-10 14:50:15,579 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 450 DAG size of output: 312 [2021-07-10 14:50:15,756 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 478 DAG size of output: 320 [2021-07-10 14:50:15,931 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 263 [2021-07-10 14:50:16,371 WARN L205 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 493 DAG size of output: 556 [2021-07-10 14:50:16,568 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 303 [2021-07-10 14:50:17,732 WARN L205 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 451 DAG size of output: 673 [2021-07-10 14:50:18,067 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 528 [2021-07-10 14:50:18,671 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 495 DAG size of output: 293 [2021-07-10 14:50:18,819 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 498 DAG size of output: 296 [2021-07-10 14:50:19,057 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 584 DAG size of output: 374 [2021-07-10 14:50:19,480 WARN L205 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 1024 DAG size of output: 497 [2021-07-10 14:50:20,397 WARN L205 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 1774 DAG size of output: 883 [2021-07-10 14:50:20,507 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 212 [2021-07-10 14:50:21,852 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 392 DAG size of output: 221 [2021-07-10 14:50:23,961 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 385 DAG size of output: 195 [2021-07-10 14:50:24,176 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 270 [2021-07-10 14:50:24,569 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 800 DAG size of output: 400 [2021-07-10 14:50:26,133 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 2504 DAG size of output: 1207 [2021-07-10 14:50:27,853 WARN L205 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 2608 DAG size of output: 1284 [2021-07-10 14:50:30,571 WARN L205 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 3189 DAG size of output: 1719 [2021-07-10 14:50:33,237 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 3189 DAG size of output: 1719 [2021-07-10 14:50:36,091 WARN L205 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 3192 DAG size of output: 1723 [2021-07-10 14:50:39,403 WARN L205 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 1725 DAG size of output: 1927 [2021-07-10 14:50:40,059 WARN L205 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 887 DAG size of output: 595 [2021-07-10 14:50:40,938 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 272 [2021-07-10 14:50:42,056 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 1291 DAG size of output: 722 [2021-07-10 14:50:42,607 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 242 [2021-07-10 14:50:43,162 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 479 DAG size of output: 261 [2021-07-10 14:50:43,317 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 518 DAG size of output: 290 [2021-07-10 14:50:43,515 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 587 DAG size of output: 340 [2021-07-10 14:50:43,846 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 911 DAG size of output: 482 [2021-07-10 14:50:44,180 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 911 DAG size of output: 482 [2021-07-10 14:50:44,538 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 913 DAG size of output: 484 [2021-07-10 14:50:44,879 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 486 DAG size of output: 493 [2021-07-10 14:50:45,033 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 262 [2021-07-10 14:50:45,858 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 385 DAG size of output: 273 [2021-07-10 14:50:45,967 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 275 [2021-07-10 14:50:46,090 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 270 [2021-07-10 14:50:46,443 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 14:50:46,445 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:50:46,446 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 14:50:46,446 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:3 [2021-07-10 14:50:46,452 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:50:46,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228387393] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:50:46,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:50:46,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-07-10 14:50:46,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774284818] [2021-07-10 14:50:46,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-07-10 14:50:46,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:50:46,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-07-10 14:50:46,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2021-07-10 14:50:46,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:50:46,454 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:50:46,454 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 14:50:46,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:50:46,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:50:46,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:50:46,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:50:46,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:50:46,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:50:46,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:50:46,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:50:46,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:50:46,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 14:50:46,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 14:50:46,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:50:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:50:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:50:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:50:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:50:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:50:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:50:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:50:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:50:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:50:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 14:50:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 14:50:47,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 14:50:47,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2605,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 14:50:47,345 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:50:47,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:50:47,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1053868743, now seen corresponding path program 12 times [2021-07-10 14:50:47,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:50:47,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089595830] [2021-07-10 14:50:47,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:50:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:50:47,571 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:50:47,572 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:50:47,572 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089595830] [2021-07-10 14:50:47,572 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089595830] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:50:47,572 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872102261] [2021-07-10 14:50:47,572 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 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 [2021-07-10 14:50:47,603 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-10 14:50:47,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 14:50:47,604 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 51 conjunts are in the unsatisfiable core [2021-07-10 14:50:47,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:50:48,259 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2021-07-10 14:50:48,259 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:50:48,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 21 new quantified variables, introduced 55 case distinctions, treesize of input 51 treesize of output 477 [2021-07-10 14:50:48,885 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 272 [2021-07-10 14:50:49,043 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 283 [2021-07-10 14:50:49,213 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 360 DAG size of output: 317 [2021-07-10 14:50:49,968 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 481 DAG size of output: 414 [2021-07-10 14:50:50,979 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 248 [2021-07-10 14:50:51,113 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 285 [2021-07-10 14:50:51,330 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 439 DAG size of output: 371 [2021-07-10 14:50:51,928 WARN L205 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 762 DAG size of output: 640 [2021-07-10 14:50:52,784 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 292 [2021-07-10 14:50:53,730 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 316 [2021-07-10 14:50:54,095 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 595 DAG size of output: 471 [2021-07-10 14:50:55,137 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 1191 DAG size of output: 957 [2021-07-10 14:50:56,276 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 1215 DAG size of output: 956 [2021-07-10 14:50:57,426 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 1215 DAG size of output: 956 [2021-07-10 14:50:58,767 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1232 DAG size of output: 973 [2021-07-10 14:51:00,610 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 975 DAG size of output: 992 [2021-07-10 14:51:02,187 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 966 DAG size of output: 1080 [2021-07-10 14:51:02,842 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 275 [2021-07-10 14:51:03,561 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 394 [2021-07-10 14:51:03,811 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 539 DAG size of output: 420 [2021-07-10 14:51:04,071 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 406 DAG size of output: 408 [2021-07-10 14:51:04,642 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 279 [2021-07-10 14:51:04,773 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 297 [2021-07-10 14:51:05,415 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 474 DAG size of output: 399 [2021-07-10 14:51:05,979 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 485 DAG size of output: 563 [2021-07-10 14:51:06,427 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 495 [2021-07-10 14:51:06,578 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 271 [2021-07-10 14:51:07,650 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 249 [2021-07-10 14:51:07,790 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 273 [2021-07-10 14:51:07,985 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 386 DAG size of output: 319 [2021-07-10 14:51:09,199 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 257 [2021-07-10 14:51:09,369 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 300 [2021-07-10 14:51:09,911 WARN L205 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 451 DAG size of output: 393 [2021-07-10 14:51:10,462 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 252 [2021-07-10 14:51:11,103 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 287 [2021-07-10 14:51:11,346 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 385 [2021-07-10 14:51:12,011 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 248 [2021-07-10 14:51:12,393 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 616 DAG size of output: 503 [2021-07-10 14:51:13,718 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 341 [2021-07-10 14:51:13,993 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 497 DAG size of output: 414 [2021-07-10 14:51:14,882 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 675 DAG size of output: 520 [2021-07-10 14:51:15,963 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 274 [2021-07-10 14:51:16,164 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 424 DAG size of output: 343 [2021-07-10 14:51:17,363 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 1180 DAG size of output: 954 [2021-07-10 14:51:19,266 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 1380 DAG size of output: 1078 [2021-07-10 14:51:21,577 WARN L205 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 1516 DAG size of output: 1174 [2021-07-10 14:51:22,540 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 272 [2021-07-10 14:51:23,029 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 397 DAG size of output: 340 [2021-07-10 14:51:23,640 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 242 [2021-07-10 14:51:23,796 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 259 [2021-07-10 14:51:24,219 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 538 DAG size of output: 461 [2021-07-10 14:51:25,258 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 283 [2021-07-10 14:51:25,454 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 388 DAG size of output: 320 [2021-07-10 14:51:26,169 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 252 [2021-07-10 14:51:26,325 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 294 [2021-07-10 14:51:26,724 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 644 DAG size of output: 500 [2021-07-10 14:51:28,096 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 263 [2021-07-10 14:51:28,363 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 477 DAG size of output: 371 [2021-07-10 14:51:29,056 WARN L205 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 896 DAG size of output: 673 [2021-07-10 14:51:30,273 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1186 DAG size of output: 935 [2021-07-10 14:51:31,634 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1252 DAG size of output: 978 [2021-07-10 14:51:33,147 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1270 DAG size of output: 994 [2021-07-10 14:51:34,016 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 458 DAG size of output: 299 [2021-07-10 14:51:36,046 WARN L205 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 1620 DAG size of output: 1179 [2021-07-10 14:51:36,954 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 458 DAG size of output: 299 [2021-07-10 14:51:42,217 WARN L205 SmtUtils]: Spent 5.26 s on a formula simplification. DAG size of input: 2665 DAG size of output: 2128 [2021-07-10 14:51:48,376 WARN L205 SmtUtils]: Spent 6.15 s on a formula simplification. DAG size of input: 2844 DAG size of output: 2247 [2021-07-10 14:51:55,290 WARN L205 SmtUtils]: Spent 6.90 s on a formula simplification. DAG size of input: 3199 DAG size of output: 2692 [2021-07-10 14:51:55,478 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 365 [2021-07-10 14:51:55,808 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 434 [2021-07-10 14:51:56,947 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 274 [2021-07-10 14:51:57,478 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 224 [2021-07-10 14:51:58,139 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 336 [2021-07-10 14:51:58,390 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 363 [2021-07-10 14:51:59,331 WARN L205 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 649 DAG size of output: 569 [2021-07-10 14:52:00,034 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 264 [2021-07-10 14:52:00,904 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 301 [2021-07-10 14:52:01,657 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 457 DAG size of output: 401 [2021-07-10 14:52:02,767 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 840 DAG size of output: 743 [2021-07-10 14:52:04,187 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 976 DAG size of output: 835 [2021-07-10 14:52:05,058 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 458 DAG size of output: 299 [2021-07-10 14:52:06,495 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 386 DAG size of output: 340 [2021-07-10 14:52:07,177 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 228 [2021-07-10 14:52:07,562 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 495 DAG size of output: 418 [2021-07-10 14:52:08,477 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 309 [2021-07-10 14:52:09,132 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 239 [2021-07-10 14:52:09,445 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 523 DAG size of output: 442 [2021-07-10 14:52:10,449 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 280 [2021-07-10 14:52:10,612 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 308 [2021-07-10 14:52:11,119 WARN L205 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 720 DAG size of output: 582 [2021-07-10 14:52:12,109 WARN L205 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 1040 DAG size of output: 827 [2021-07-10 14:52:13,301 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 1058 DAG size of output: 843 [2021-07-10 14:52:14,168 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 458 DAG size of output: 299 [2021-07-10 14:52:15,794 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 1411 DAG size of output: 1030 [2021-07-10 14:52:19,502 WARN L205 SmtUtils]: Spent 3.70 s on a formula simplification. DAG size of input: 2097 DAG size of output: 1724 [2021-07-10 14:52:24,027 WARN L205 SmtUtils]: Spent 4.51 s on a formula simplification. DAG size of input: 2245 DAG size of output: 1821 [2021-07-10 14:52:24,460 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 174 [2021-07-10 14:52:25,051 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 266 [2021-07-10 14:52:25,480 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 188 [2021-07-10 14:52:25,920 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 253 [2021-07-10 14:52:26,291 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 208 [2021-07-10 14:52:26,671 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 286 [2021-07-10 14:52:27,160 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 464 [2021-07-10 14:52:28,001 WARN L205 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 730 DAG size of output: 648 [2021-07-10 14:52:28,996 WARN L205 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 753 DAG size of output: 669 [2021-07-10 14:52:34,710 WARN L205 SmtUtils]: Spent 5.71 s on a formula simplification. DAG size of input: 2867 DAG size of output: 2380 [2021-07-10 14:52:47,422 WARN L205 SmtUtils]: Spent 12.70 s on a formula simplification. DAG size of input: 5001 DAG size of output: 4174 [2021-07-10 14:53:02,107 WARN L205 SmtUtils]: Spent 14.66 s on a formula simplification. DAG size of input: 5364 DAG size of output: 4451 [2021-07-10 14:53:19,350 WARN L205 SmtUtils]: Spent 17.22 s on a formula simplification. DAG size of input: 5816 DAG size of output: 4870 [2021-07-10 14:53:38,728 WARN L205 SmtUtils]: Spent 19.35 s on a formula simplification. DAG size of input: 5866 DAG size of output: 4910 [2021-07-10 14:53:57,931 WARN L205 SmtUtils]: Spent 19.18 s on a formula simplification. DAG size of input: 5866 DAG size of output: 4910 [2021-07-10 14:54:18,873 WARN L205 SmtUtils]: Spent 20.92 s on a formula simplification. DAG size of input: 5874 DAG size of output: 4918 [2021-07-10 14:54:30,476 WARN L205 SmtUtils]: Spent 11.57 s on a formula simplification. DAG size of input: 4920 DAG size of output: 3353 [2021-07-10 14:54:32,135 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 1208 DAG size of output: 691 [2021-07-10 14:54:32,281 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 204 [2021-07-10 14:54:32,776 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 473 DAG size of output: 318 [2021-07-10 14:54:33,315 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 212 [2021-07-10 14:54:33,753 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 410 DAG size of output: 186 [2021-07-10 14:54:34,042 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 2396 [2021-07-10 14:54:36,355 WARN L205 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 2396 DAG size of output: 1275 [2021-07-10 14:54:38,247 WARN L205 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 1132 DAG size of output: 991 [2021-07-10 14:54:38,482 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 213 [2021-07-10 14:54:39,110 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 249 [2021-07-10 14:54:39,721 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 257 [2021-07-10 14:54:40,078 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 509 DAG size of output: 379 [2021-07-10 14:54:41,071 WARN L205 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 937 DAG size of output: 793 [2021-07-10 14:54:41,223 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 257 [2021-07-10 14:54:41,354 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 293 [2021-07-10 14:54:41,468 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 232 [2021-07-10 14:54:41,966 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 258 [2021-07-10 14:54:42,398 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 238 [2021-07-10 14:54:42,657 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 331 [2021-07-10 14:54:42,904 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 331 [2021-07-10 14:54:43,407 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 521 DAG size of output: 292 [2021-07-10 14:54:44,811 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1363 DAG size of output: 972 [2021-07-10 14:54:46,241 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1363 DAG size of output: 972 [2021-07-10 14:54:47,606 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1365 DAG size of output: 913 [2021-07-10 14:54:48,888 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 208 [2021-07-10 14:54:49,424 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 447 DAG size of output: 546 [2021-07-10 14:54:49,545 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 211 [2021-07-10 14:54:49,923 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 355 DAG size of output: 287 [2021-07-10 14:54:50,649 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 341 [2021-07-10 14:54:50,938 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 650 DAG size of output: 413 [2021-07-10 14:54:51,457 WARN L205 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 983 DAG size of output: 529 [2021-07-10 14:54:51,998 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 983 DAG size of output: 529 [2021-07-10 14:54:52,589 WARN L205 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 988 DAG size of output: 535 [2021-07-10 14:54:53,201 WARN L205 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 533 DAG size of output: 560 [2021-07-10 14:54:53,378 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 270 [2021-07-10 14:54:54,215 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 300 [2021-07-10 14:54:54,800 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 219 [2021-07-10 14:54:54,994 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 456 DAG size of output: 315 [2021-07-10 14:54:55,176 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 456 DAG size of output: 315 [2021-07-10 14:54:55,433 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 327 [2021-07-10 14:54:55,625 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 323 [2021-07-10 14:54:56,484 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 14:54:56,486 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:54:56,486 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 14:54:56,486 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:3 [2021-07-10 14:54:56,492 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:54:56,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872102261] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:54:56,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:54:56,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-07-10 14:54:56,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831356748] [2021-07-10 14:54:56,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-07-10 14:54:56,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:54:56,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-07-10 14:54:56,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-07-10 14:54:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:54:56,493 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:54:56,494 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 14:54:56,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:54:56,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:54:56,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:54:56,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:54:56,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:54:56,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:54:56,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:54:56,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:54:56,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:54:56,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 14:54:56,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 14:54:56,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 14:54:56,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:54:57,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:54:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:54:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:54:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:54:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:54:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:54:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:54:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:54:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:54:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 14:54:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 14:54:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 14:54:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 14:54:57,427 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5397 [2021-07-10 14:54:57,427 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:54:57,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:54:57,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1435958889, now seen corresponding path program 13 times [2021-07-10 14:54:57,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:54:57,428 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207909068] [2021-07-10 14:54:57,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:54:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:54:57,567 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 55 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:54:57,567 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:54:57,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207909068] [2021-07-10 14:54:57,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207909068] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:54:57,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286787894] [2021-07-10 14:54:57,567 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 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 [2021-07-10 14:54:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:54:57,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-10 14:54:57,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:54:57,658 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 66 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:54:57,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286787894] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:54:57,658 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:54:57,658 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-07-10 14:54:57,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705470940] [2021-07-10 14:54:57,658 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-10 14:54:57,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:54:57,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-10 14:54:57,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2021-07-10 14:54:57,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:54:57,659 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:54:57,659 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 17 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 14:54:57,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:54:57,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:54:57,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:54:57,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:54:57,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:54:57,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:54:57,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:54:57,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:54:57,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:54:57,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 14:54:57,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 14:54:57,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 14:54:57,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-10 14:54:57,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:54:57,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:54:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:54:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:54:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:54:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:54:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:54:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:54:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:54:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:54:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 14:54:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 14:54:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 14:54:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 14:54:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 14:54:58,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11848,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 14:54:58,086 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:54:58,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:54:58,086 INFO L82 PathProgramCache]: Analyzing trace with hash -193688988, now seen corresponding path program 14 times [2021-07-10 14:54:58,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:54:58,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314638889] [2021-07-10 14:54:58,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:54:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:54:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:54:58,327 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:54:58,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314638889] [2021-07-10 14:54:58,328 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314638889] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:54:58,328 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860663596] [2021-07-10 14:54:58,328 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 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 [2021-07-10 14:54:58,369 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 14:54:58,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 14:54:58,370 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 56 conjunts are in the unsatisfiable core [2021-07-10 14:54:58,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:54:59,249 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-07-10 14:54:59,249 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:54:59,249 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 [2021-07-10 14:55:00,430 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 531 DAG size of output: 388 [2021-07-10 14:55:01,456 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 500 DAG size of output: 323 [2021-07-10 14:55:01,836 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 890 DAG size of output: 578 [2021-07-10 14:55:02,329 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 916 DAG size of output: 604 [2021-07-10 14:55:02,889 WARN L205 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 955 DAG size of output: 643 [2021-07-10 14:55:03,605 WARN L205 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 972 DAG size of output: 653 [2021-07-10 14:55:04,855 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 322 [2021-07-10 14:55:06,182 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 536 DAG size of output: 366 [2021-07-10 14:55:06,738 WARN L205 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 932 DAG size of output: 543 [2021-07-10 14:55:07,331 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 960 DAG size of output: 571 [2021-07-10 14:55:08,020 WARN L205 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 976 DAG size of output: 581 [2021-07-10 14:55:09,540 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1738 DAG size of output: 1037 [2021-07-10 14:55:11,045 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1738 DAG size of output: 1037 [2021-07-10 14:55:13,024 WARN L205 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 1759 DAG size of output: 1058 [2021-07-10 14:55:13,602 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 1052 DAG size of output: 1052 [2021-07-10 14:55:14,459 WARN L205 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 1044 DAG size of output: 645 [2021-07-10 14:55:14,926 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 587 DAG size of output: 610 [2021-07-10 14:55:15,143 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 584 DAG size of output: 638 [2021-07-10 14:55:15,656 WARN L205 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 581 DAG size of output: 589 [2021-07-10 14:55:16,185 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 573 [2021-07-10 14:55:17,834 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 288 [2021-07-10 14:55:18,133 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 409 [2021-07-10 14:55:18,358 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 400 [2021-07-10 14:55:18,581 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 355 DAG size of output: 380 [2021-07-10 14:55:19,389 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 407 DAG size of output: 359 [2021-07-10 14:55:19,644 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 398 [2021-07-10 14:55:20,027 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 765 DAG size of output: 484 [2021-07-10 14:55:21,020 WARN L205 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 868 DAG size of output: 564 [2021-07-10 14:55:21,585 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 869 DAG size of output: 565 [2021-07-10 14:55:22,362 WARN L205 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 898 DAG size of output: 593 [2021-07-10 14:55:23,266 WARN L205 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 985 DAG size of output: 678 [2021-07-10 14:55:24,319 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 1035 DAG size of output: 701 [2021-07-10 14:55:25,592 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1092 DAG size of output: 734 [2021-07-10 14:55:27,003 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1110 DAG size of output: 752 [2021-07-10 14:55:28,455 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1110 DAG size of output: 752 [2021-07-10 14:55:30,319 WARN L205 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 1122 DAG size of output: 772 [2021-07-10 14:55:31,670 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 757 DAG size of output: 757 [2021-07-10 14:55:31,965 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 736 DAG size of output: 736 [2021-07-10 14:55:32,103 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 704 DAG size of output: 704 [2021-07-10 14:55:33,438 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 683 DAG size of output: 791 [2021-07-10 14:55:33,567 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 678 [2021-07-10 14:55:33,679 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 218 [2021-07-10 14:55:34,175 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 599 DAG size of output: 599 [2021-07-10 14:55:34,789 WARN L205 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 520 [2021-07-10 14:55:35,287 WARN L205 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 406 DAG size of output: 470 [2021-07-10 14:55:36,226 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 201 [2021-07-10 14:55:36,470 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 266 [2021-07-10 14:55:37,316 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 599 DAG size of output: 346 [2021-07-10 14:55:37,701 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 668 DAG size of output: 399 [2021-07-10 14:55:38,308 WARN L205 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 877 DAG size of output: 496 [2021-07-10 14:55:38,942 WARN L205 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 917 DAG size of output: 524 [2021-07-10 14:55:39,698 WARN L205 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 955 DAG size of output: 552 [2021-07-10 14:55:40,544 WARN L205 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 964 DAG size of output: 557 [2021-07-10 14:55:41,484 WARN L205 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 969 DAG size of output: 562 [2021-07-10 14:55:42,527 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 1000 DAG size of output: 594 [2021-07-10 14:55:43,580 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 1000 DAG size of output: 594 [2021-07-10 14:55:45,313 WARN L205 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 1008 DAG size of output: 601 [2021-07-10 14:55:46,541 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 603 DAG size of output: 513 [2021-07-10 14:55:47,226 WARN L205 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 419 [2021-07-10 14:55:47,516 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 336 [2021-07-10 14:55:47,780 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 277 [2021-07-10 14:55:48,048 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 254 [2021-07-10 14:55:49,180 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 227 [2021-07-10 14:55:49,334 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 250 [2021-07-10 14:55:49,525 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 257 [2021-07-10 14:55:49,721 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 193 [2021-07-10 14:55:50,419 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 191 [2021-07-10 14:55:50,593 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 216 [2021-07-10 14:55:50,910 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 392 DAG size of output: 267 [2021-07-10 14:55:51,384 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 629 DAG size of output: 405 [2021-07-10 14:55:51,900 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 650 DAG size of output: 421 [2021-07-10 14:55:52,572 WARN L205 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 762 DAG size of output: 513 [2021-07-10 14:55:53,457 WARN L205 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 913 DAG size of output: 610 [2021-07-10 14:55:54,342 WARN L205 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 913 DAG size of output: 610 [2021-07-10 14:55:55,305 WARN L205 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 915 DAG size of output: 612 [2021-07-10 14:55:56,163 WARN L205 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 614 DAG size of output: 697 [2021-07-10 14:55:56,374 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 253 [2021-07-10 14:55:57,702 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 370 [2021-07-10 14:55:58,111 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 204 [2021-07-10 14:55:58,642 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 212 [2021-07-10 14:55:58,785 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 232 [2021-07-10 14:55:58,990 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 314 [2021-07-10 14:55:59,287 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 522 DAG size of output: 404 [2021-07-10 14:55:59,585 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 522 DAG size of output: 404 [2021-07-10 14:55:59,916 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 527 DAG size of output: 410 [2021-07-10 14:56:00,441 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 409 [2021-07-10 14:56:00,873 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 470 [2021-07-10 14:56:01,006 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 280 [2021-07-10 14:56:01,120 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 204 [2021-07-10 14:56:02,080 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 301 [2021-07-10 14:56:02,233 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 258 [2021-07-10 14:56:02,890 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 217 [2021-07-10 14:56:03,041 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 230 [2021-07-10 14:56:03,357 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 399 [2021-07-10 14:56:03,857 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 665 DAG size of output: 433 [2021-07-10 14:56:04,197 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 665 DAG size of output: 433 [2021-07-10 14:56:04,565 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 667 DAG size of output: 435 [2021-07-10 14:56:05,134 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 250 [2021-07-10 14:56:05,812 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 351 [2021-07-10 14:56:06,011 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 351 [2021-07-10 14:56:06,256 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 497 DAG size of output: 332 [2021-07-10 14:56:06,364 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 14:56:06,366 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:56:06,366 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 14:56:06,366 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:3 [2021-07-10 14:56:06,372 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:56:06,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860663596] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:56:06,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:56:06,372 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 34 [2021-07-10 14:56:06,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139676675] [2021-07-10 14:56:06,372 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-10 14:56:06,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:56:06,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-10 14:56:06,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1099, Unknown=0, NotChecked=0, Total=1190 [2021-07-10 14:56:06,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:56:06,373 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:56:06,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 14:56:06,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:56:06,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:56:06,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:56:06,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:56:06,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:56:06,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:56:06,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:56:06,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:56:06,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:56:06,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 14:56:06,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 14:56:06,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 14:56:06,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-10 14:56:06,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 14:56:06,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:56:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 14:56:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 14:56:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 14:56:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:56:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 14:56:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 14:56:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:56:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 14:56:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 14:56:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 14:56:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 14:56:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 14:56:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 14:56:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 14:56:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 14:56:07,219 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11849,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 14:56:07,219 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 14:56:07,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:56:07,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1922721158, now seen corresponding path program 15 times [2021-07-10 14:56:07,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:56:07,220 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389474478] [2021-07-10 14:56:07,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:56:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:56:07,608 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:56:07,609 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:56:07,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389474478] [2021-07-10 14:56:07,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389474478] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:56:07,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677023713] [2021-07-10 14:56:07,609 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 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 [2021-07-10 14:56:07,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-07-10 14:56:07,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 14:56:07,647 WARN L261 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 78 conjunts are in the unsatisfiable core [2021-07-10 14:56:07,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:56:08,697 WARN L205 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 339 [2021-07-10 14:56:08,697 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 14:56:08,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 25 new quantified variables, introduced 78 case distinctions, treesize of input 59 treesize of output 667 [2021-07-10 14:56:10,166 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 337 [2021-07-10 14:56:10,392 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 793 DAG size of output: 605 [2021-07-10 14:56:10,693 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 821 DAG size of output: 633 [2021-07-10 14:56:11,058 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 850 DAG size of output: 662 [2021-07-10 14:56:11,506 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 879 DAG size of output: 691 [2021-07-10 14:56:13,070 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 440 DAG size of output: 346 [2021-07-10 14:56:13,319 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 800 DAG size of output: 612 [2021-07-10 14:56:13,650 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 830 DAG size of output: 642 [2021-07-10 14:56:14,053 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 861 DAG size of output: 673 [2021-07-10 14:56:14,538 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 891 DAG size of output: 703 [2021-07-10 14:56:15,585 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 1620 DAG size of output: 1240 [2021-07-10 14:56:16,829 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1650 DAG size of output: 1270 [2021-07-10 14:56:17,883 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 658 DAG size of output: 280 [2021-07-10 14:56:18,042 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 688 DAG size of output: 308 [2021-07-10 14:56:18,227 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 720 DAG size of output: 340 [2021-07-10 14:56:18,462 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 751 DAG size of output: 371 [2021-07-10 14:56:19,427 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 275 [2021-07-10 14:56:19,575 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 681 DAG size of output: 301 [2021-07-10 14:56:19,751 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 711 DAG size of output: 331 [2021-07-10 14:56:19,959 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 741 DAG size of output: 361 [2021-07-10 14:56:20,435 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 1352 DAG size of output: 586 [2021-07-10 14:56:21,012 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 1382 DAG size of output: 615 [2021-07-10 14:56:23,081 WARN L205 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 2856 DAG size of output: 1702 [2021-07-10 14:56:25,438 WARN L205 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 2882 DAG size of output: 1728 [2021-07-10 14:56:28,105 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 2909 DAG size of output: 1755 [2021-07-10 14:56:31,120 WARN L205 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 2934 DAG size of output: 1780 [2021-07-10 14:56:34,531 WARN L205 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 2957 DAG size of output: 1793 [2021-07-10 14:56:35,463 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 472 DAG size of output: 389 [2021-07-10 14:56:36,302 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 465 DAG size of output: 396 [2021-07-10 14:56:36,612 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 838 DAG size of output: 667 [2021-07-10 14:56:36,994 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 867 DAG size of output: 696 [2021-07-10 14:56:37,466 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 895 DAG size of output: 723 [2021-07-10 14:56:38,028 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 924 DAG size of output: 752 [2021-07-10 14:56:38,780 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 456 DAG size of output: 386 [2021-07-10 14:56:39,590 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 380 [2021-07-10 14:56:39,870 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 829 DAG size of output: 657 [2021-07-10 14:56:40,212 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 856 DAG size of output: 684 [2021-07-10 14:56:40,643 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 882 DAG size of output: 709 [2021-07-10 14:56:41,169 WARN L205 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 910 DAG size of output: 737 [2021-07-10 14:56:42,332 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 1665 DAG size of output: 1307 [2021-07-10 14:56:43,723 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1692 DAG size of output: 1334 [2021-07-10 14:56:44,725 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 690 DAG size of output: 302 [2021-07-10 14:56:44,866 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 717 DAG size of output: 327 [2021-07-10 14:56:45,040 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 744 DAG size of output: 354 [2021-07-10 14:56:45,256 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 773 DAG size of output: 383 [2021-07-10 14:56:46,337 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 697 DAG size of output: 313 [2021-07-10 14:56:46,500 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 726 DAG size of output: 340 [2021-07-10 14:56:46,707 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 755 DAG size of output: 369 [2021-07-10 14:56:46,944 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 785 DAG size of output: 399 [2021-07-10 14:56:47,449 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 1398 DAG size of output: 619 [2021-07-10 14:56:48,031 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 1425 DAG size of output: 644 [2021-07-10 14:56:50,164 WARN L205 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 2923 DAG size of output: 1765 [2021-07-10 14:56:52,669 WARN L205 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 2948 DAG size of output: 1790 [2021-07-10 14:56:55,449 WARN L205 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 2974 DAG size of output: 1816 [2021-07-10 14:56:58,591 WARN L205 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 2998 DAG size of output: 1839 [2021-07-10 14:57:02,075 WARN L205 SmtUtils]: Spent 3.47 s on a formula simplification. DAG size of input: 3022 DAG size of output: 1844 [2021-07-10 14:57:09,750 WARN L205 SmtUtils]: Spent 7.66 s on a formula simplification. DAG size of input: 5703 DAG size of output: 3356 [2021-07-10 14:57:17,374 WARN L205 SmtUtils]: Spent 7.60 s on a formula simplification. DAG size of input: 5703 DAG size of output: 3356 [2021-07-10 14:57:26,560 WARN L205 SmtUtils]: Spent 9.17 s on a formula simplification. DAG size of input: 5724 DAG size of output: 3377 [2021-07-10 14:57:47,055 WARN L205 SmtUtils]: Spent 20.47 s on a formula simplification. DAG size of input: 3379 DAG size of output: 3492 [2021-07-10 14:58:00,430 WARN L205 SmtUtils]: Spent 13.34 s on a formula simplification. DAG size of input: 3373 DAG size of output: 3876 [2021-07-10 14:58:15,557 WARN L205 SmtUtils]: Spent 15.10 s on a formula simplification. DAG size of input: 3364 DAG size of output: 3470 [2021-07-10 14:58:28,355 WARN L205 SmtUtils]: Spent 12.77 s on a formula simplification. DAG size of input: 3358 DAG size of output: 3851 [2021-07-10 14:58:42,879 WARN L205 SmtUtils]: Spent 14.50 s on a formula simplification. DAG size of input: 3119 DAG size of output: 3208 [2021-07-10 14:58:43,181 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 3095 [2021-07-10 14:58:46,513 WARN L205 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 1653 DAG size of output: 1701 [2021-07-10 14:58:50,454 WARN L205 SmtUtils]: Spent 3.93 s on a formula simplification. DAG size of input: 1641 DAG size of output: 1705 [2021-07-10 14:58:50,665 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 923 DAG size of output: 923 [2021-07-10 14:58:50,852 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 898 DAG size of output: 898 [2021-07-10 14:58:52,067 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 877 DAG size of output: 903 [2021-07-10 14:58:53,595 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 876 DAG size of output: 1047 [2021-07-10 14:58:53,721 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 869 DAG size of output: 869 [2021-07-10 14:58:54,030 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 379 [2021-07-10 14:58:54,345 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 414 [2021-07-10 14:58:55,076 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 283 [2021-07-10 14:58:55,788 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 412 [2021-07-10 14:58:56,043 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 416 [2021-07-10 14:58:57,230 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 287 [2021-07-10 14:58:57,504 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 416 [2021-07-10 14:58:58,151 WARN L205 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 830 DAG size of output: 668 [2021-07-10 14:58:58,978 WARN L205 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 852 DAG size of output: 692 [2021-07-10 14:58:59,123 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 378 DAG size of output: 380 [2021-07-10 14:58:59,509 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 418 [2021-07-10 14:59:00,793 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 403 DAG size of output: 291 [2021-07-10 14:59:01,093 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 574 DAG size of output: 420 [2021-07-10 14:59:01,473 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 593 DAG size of output: 440 [2021-07-10 14:59:01,936 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 478 [2021-07-10 14:59:02,310 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 416 [2021-07-10 14:59:03,047 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 287 [2021-07-10 14:59:03,761 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 416 [2021-07-10 14:59:04,122 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 589 DAG size of output: 436 [2021-07-10 14:59:04,592 WARN L205 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 630 DAG size of output: 468 [2021-07-10 14:59:05,600 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 901 DAG size of output: 739 [2021-07-10 14:59:07,723 WARN L205 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 1420 DAG size of output: 1253 [2021-07-10 14:59:10,313 WARN L205 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 1471 DAG size of output: 1289 [2021-07-10 14:59:11,656 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 456 DAG size of output: 335 [2021-07-10 14:59:12,903 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 460 DAG size of output: 339 [2021-07-10 14:59:13,449 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 665 DAG size of output: 539 [2021-07-10 14:59:14,458 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 225 [2021-07-10 14:59:14,851 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 464 DAG size of output: 343 [2021-07-10 14:59:16,094 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 460 DAG size of output: 339 [2021-07-10 14:59:16,665 WARN L205 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 669 DAG size of output: 543 [2021-07-10 14:59:17,944 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1076 DAG size of output: 938 [2021-07-10 14:59:19,500 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1100 DAG size of output: 972 [2021-07-10 14:59:24,451 WARN L205 SmtUtils]: Spent 4.94 s on a formula simplification. DAG size of input: 2376 DAG size of output: 2067 [2021-07-10 14:59:26,103 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 292 [2021-07-10 14:59:26,501 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 464 DAG size of output: 402 [2021-07-10 14:59:27,009 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 478 DAG size of output: 431 [2021-07-10 14:59:27,584 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 516 DAG size of output: 467 [2021-07-10 14:59:28,568 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 265 [2021-07-10 14:59:29,392 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 261 [2021-07-10 14:59:29,835 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 474 DAG size of output: 419 [2021-07-10 14:59:30,403 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 450 [2021-07-10 14:59:31,799 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 857 DAG size of output: 761 [2021-07-10 14:59:39,289 WARN L205 SmtUtils]: Spent 7.48 s on a formula simplification. DAG size of input: 2898 DAG size of output: 2556 [2021-07-10 14:59:47,843 WARN L205 SmtUtils]: Spent 8.54 s on a formula simplification. DAG size of input: 3244 DAG size of output: 2602 [2021-07-10 14:59:57,156 WARN L205 SmtUtils]: Spent 9.29 s on a formula simplification. DAG size of input: 3626 DAG size of output: 2898 [2021-07-10 15:00:08,730 WARN L205 SmtUtils]: Spent 11.56 s on a formula simplification. DAG size of input: 3680 DAG size of output: 2931 [2021-07-10 15:00:21,634 WARN L205 SmtUtils]: Spent 12.88 s on a formula simplification. DAG size of input: 3728 DAG size of output: 2961 [2021-07-10 15:00:22,070 WARN L205 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 1633 DAG size of output: 1633 [2021-07-10 15:00:22,358 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 1608 DAG size of output: 1606 [2021-07-10 15:00:22,720 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 1586 DAG size of output: 1586 [2021-07-10 15:00:25,448 WARN L205 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 1564 DAG size of output: 1593 [2021-07-10 15:00:25,703 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 1562 DAG size of output: 1562 [2021-07-10 15:00:26,064 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 346 [2021-07-10 15:00:26,856 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 221 [2021-07-10 15:00:27,908 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 247 [2021-07-10 15:00:28,188 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 437 DAG size of output: 363 [2021-07-10 15:00:28,849 WARN L205 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 654 DAG size of output: 532 [2021-07-10 15:00:29,557 WARN L205 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 669 DAG size of output: 566 [2021-07-10 15:00:30,443 WARN L205 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 778 DAG size of output: 581 [2021-07-10 15:00:31,553 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 829 DAG size of output: 624 [2021-07-10 15:00:32,509 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 203 [2021-07-10 15:00:32,751 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 248 [2021-07-10 15:00:33,553 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 175 [2021-07-10 15:00:33,852 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 264 [2021-07-10 15:00:34,563 WARN L205 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 529 DAG size of output: 432 [2021-07-10 15:00:35,548 WARN L205 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 477 [2021-07-10 15:00:38,033 WARN L205 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 1142 DAG size of output: 875 [2021-07-10 15:00:38,195 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 1169 DAG size of output: 1169 [2021-07-10 15:00:38,385 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 1160 DAG size of output: 1160 [2021-07-10 15:00:38,970 WARN L205 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 620 DAG size of output: 728 [2021-07-10 15:00:40,510 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 205 [2021-07-10 15:00:41,247 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 303 [2021-07-10 15:00:41,901 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 254 [2021-07-10 15:00:42,588 WARN L205 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 719 DAG size of output: 574 [2021-07-10 15:00:43,447 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 219 [2021-07-10 15:00:43,628 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 289 [2021-07-10 15:00:44,416 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 217 [2021-07-10 15:00:44,584 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 285 [2021-07-10 15:00:44,981 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 487 DAG size of output: 439 [2021-07-10 15:00:45,973 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 255 [2021-07-10 15:00:47,681 WARN L205 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 1383 DAG size of output: 1111 [2021-07-10 15:00:49,780 WARN L205 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 1401 DAG size of output: 1150 [2021-07-10 15:00:52,251 WARN L205 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 1612 DAG size of output: 1165 [2021-07-10 15:00:52,526 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 630 DAG size of output: 630 [2021-07-10 15:00:52,871 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 614 DAG size of output: 722 [2021-07-10 15:00:54,248 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 263 [2021-07-10 15:00:55,393 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 368 [2021-07-10 15:00:55,713 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 634 DAG size of output: 513 [2021-07-10 15:00:56,455 WARN L205 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 986 DAG size of output: 739 [2021-07-10 15:00:57,766 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 372 [2021-07-10 15:00:58,115 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 640 DAG size of output: 519 [2021-07-10 15:00:59,107 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 267 [2021-07-10 15:01:00,095 WARN L205 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 992 DAG size of output: 745 [2021-07-10 15:01:01,867 WARN L205 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 1381 DAG size of output: 1137 [2021-07-10 15:01:04,076 WARN L205 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 1401 DAG size of output: 1176 [2021-07-10 15:01:06,706 WARN L205 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 1642 DAG size of output: 1191 [2021-07-10 15:01:09,866 WARN L205 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 1694 DAG size of output: 1234 [2021-07-10 15:01:13,515 WARN L205 SmtUtils]: Spent 3.64 s on a formula simplification. DAG size of input: 1746 DAG size of output: 1270 [2021-07-10 15:01:20,543 WARN L205 SmtUtils]: Spent 6.97 s on a formula simplification. DAG size of input: 2914 DAG size of output: 2001 [2021-07-10 15:01:28,680 WARN L205 SmtUtils]: Spent 8.12 s on a formula simplification. DAG size of input: 2920 DAG size of output: 2008 [2021-07-10 15:01:41,705 WARN L205 SmtUtils]: Spent 13.01 s on a formula simplification. DAG size of input: 3583 DAG size of output: 2524 [2021-07-10 15:01:56,222 WARN L205 SmtUtils]: Spent 14.50 s on a formula simplification. DAG size of input: 4202 DAG size of output: 3052 [2021-07-10 15:02:12,269 WARN L205 SmtUtils]: Spent 16.03 s on a formula simplification. DAG size of input: 4219 DAG size of output: 3062 [2021-07-10 15:02:30,215 WARN L205 SmtUtils]: Spent 17.93 s on a formula simplification. DAG size of input: 4299 DAG size of output: 3121 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown